Norcon Communications TTU-1 Series User manual

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

®
Norcon TTU®-1 Series
Installation & Operating
Instructions
For Information:
Phone: [phone]
Email: [e-mail]
www.crlaurence.com
•Introduction …………………………………… ..1
•Features …………………………………………… .1
•How It Works …………………………………… …2
•How To Install …………………………………... 3
•How To Use The Talk-Thru Communicator ……… 5
•Operation Hints …………………………………. 6
•Specifications ………………………………………7
•Accessories and Options ….…………………….. 8
•TTU®-1 Series ……………….………………. 9
•Norcon TTU®-7 . ….………………...………. . 11
•Norcon TTU®-3 Series .…………………...…….. .12
•Troubleshooting ……………………………… ...13
•Warranty ……………………………………… .14
TTU®-1 Series
2-Way Talk-Thru
Electronic Communication System
A voice communications system for High-Security and
Isolation Booth Situations
Today’s security and isolation booths are often the best step
you can take to protect your employees. But do they protect or
help maintain your very important good will? Not if clerks and
customers have to shout and growl and repeat themselves to be
heard or understood.
Norcon’s Patented TTU®-1 Talk-Thru Communicator is
a 2-way, hands-free audio system that provides high-quality
personal communication between people separated by security or
isolation barriers. It is the most widely used system of its type in
the U.S., and the world.
FEATURES
•Clear 2-way hands-free voice communication.
•Quality electronic design and engineering.
•Avoids shouting, repetition, and misunderstanding.
•Simple, one-person installation.
•Rugged, tamper-resistant materials. Anodized aluminum
•Self-powered with fast rechargeable battery option.
•Bullet-resistant option ( UL level 3).
•Units available for ADA applications.
1
•Headset jack equipped on all models. Headset can be ordered
separately.
•Export models available
HOW IT WORKS …
The Norcon TTU®system permits hands-free, 2-way
communication between the booth attendant and the customer.
Unique circuitry facilitates ongoing, clear, 2-way conversation at all
times – as if the two parties were together in the same room.
The TTU®-1 Talk-Thru Communicator now incorporates circuitry
to automatically attenuate the outside channel. If the gooseneck
microphone is not used for a period of 30 seconds, the outside
channel volume will be reduced approximately 70%. Normal
operation is restored as soon as the attendant speaks into the
gooseneck microphone. The automatic volume attenuation circuit
prevents outside noise from bothering the attendant.
The TTU®-1 provides clear communication even in
environments with high ambient noise by shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds.
2
HOW TO INSTALL …
Installation of the TTU®-1 is a very simple, one-person operation.
All that’s needed is a 3” to 4” cutout in the barrier. Four fasteners and
two rubber gaskets for mounting are supplied.
The front face and housing are easily mounted on opposite sides of
the barrier using the fasteners. The rubber gaskets prevent slippage and
protect the barrier surface. The electronic section is then inserted into
the housing and fastened in place.
Installation Instructions
1. Remove the four (4) 6-32 assembly screws. 
2. Separate the housing and electronics assembly. Unplug
electronic assembly from the faceplate and housing.
3. Set the electronic assembly aside, carefully.
4. Remove the four (4) 8-32 mounting nuts from the
mounting rods.
5. Separate the faceplate and housing.
6. Discard the shipping spacers located between the faceplate
and housing if there are any.
7. Hold the faceplate over the partition opening. Carefully
center the faceplate and align the lettering horizontally.
Masking tape can be used to temporarily hold the faceplate
to the outside of the partition.
8. On the inside of the partition mount the housing over
the four (4) 8-32 mounting rods. Be certain to
position the housing so that the threaded hole is
positioned properly. If using tubing, orient the hole in
the direction which the tubing is to exit (left, right,
top, and bottom). If tubing is not being used, place the
plugged hole at the bottom.
3
9. For power connection, route the one pair cable (with
the connector on one end) FROM the inside unit TO
the location of the PS-1 power supply. Connect the
conductors to the power supply (RED to +, BLACK
to -). Plug the connector to its mate from the printed
circuit board.
10. Connect 4 –pin polarized connectors and reassemble units.
4
HOW TO USE THE TALK-THRU
COMMUNICATOR …
1. With power switch off, turn Talk and Listen controls
completely counter clockwise.
2. Turn on the unit by switching the AUTO MUTE to it’s center
position. In this position, the unit is in the auto mute mode.
3. Adjust the TALK volume control until the attendant is
clearly heard by the person outside the window when the
attendant is speaking 2" to 4" from the gooseneck microphone
at a normal speaking level. The green LED should go on when
the attendant starts talking and go off when the attendant stops
talking. If the green LED stays lit constantly, it indicates either
the TALK volume setting or the ambient noise is too high.
4. Adjust the LISTEN control until the person outside
the window is clearly heard when speaking at a normal level.
TALK
INDICATING LED
MADE IN U.S.A.
5
OPERATION HINTS
1. Increasing the talk volume control allows the attendant to
speak further from the microphone as well as increasing the
talk channel volume. The optimum distance from the
microphone should be maintained at approximately 3” or
conversations not directed to customers may be heard outside
the booth. Watch the green LED above the TALK volume
control, it should be on ONLY when talking into the gooseneck
microphone.
2. Installing a headset into the Headset jack will allow
communications from the headset and disconnect the speaker
and the gooseneck microphone.
3. The unit will decrease the incoming volume level by
approximately 70% some 30 seconds after the attendant stops
speaking into the microphone. The purpose of this feature is to
decrease the amount of extraneous noise entering the booth.
Normal volume level is restored when the attendant speaks into
the microphone. The muting function can be defeated by
switching the AUTO MUTE switch to the OFF position.
6 TTU-1 P.1.
Be certain to position the
housing so that the
threaded hole can be
positioned properly. If
using tubing, orient the
hole in the direction
which tubing is to exit –
LEFT; RIGHT; TOP
or BOTTOM

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15

SPECIFICATIONS
MECHANICAL
•Outside faceplate: Solid aluminum, anodized finish,
tamper-resistant.
•Control housing (inside): Machined aluminum, anodized
finish, tamper-resistant.
•Size: Outside faceplate 5” Dia. x ½” D.
Inside control housing:
5” Dia. x 2-1/2” D (TTU®-1 A) (TTU®-1 AJ)
5” Dia. x 3-1/2” D (TTU®-1 D) (TTU®-1 AB)
•Weight: ~ 5 LB.
•Mounting: Partition hole 3 to 4” Dia. ( 3-1/2” recommended)
Specify barrier thickness when ordering. Norcon will adjust
the length of the mounting rods to meet your need.
•Panel Controls:
LISTEN volume, TALK volume
POWER On/Off , AUTO MUTE On/Off.
ELECTRONIC
•Audio frequency response: Selectively shaped for maximum
voice intelligibility.
•Audio power: 2 watts per amplifier.
•Distortion: Less than 2%.
•Listen mode: 20dB compression.
•Microphone: Electret.
•Power Supply: Input – 120V AC, 60 Hz. Output 15V DC, 200mA.
(220V version for export also available)
Specifications are subject to change without notice.
7
Accessories and Options for TTU®
HW251 Headset (Option)
•Superior sound quality
•Long wearing comfort
•Quick Disconnect cable, let you walk away with the
headset.
Professional Wireless Headset System (Option)
•Mobile: DETC 6.0 technology hand-free mobile
design with range of up to 300 feet from base unit
•DuoSet Headset: Adjustable for over-the-head
stability or over-the –ear convenience with new
conformable earloop
•Extended Use: Ten hours continuous talk time on
rechargeable battery.
8
TTU®-1 Series:
Select from 11 Available Models
•TTU®-1 A Continuous power unit complete.
Housing 5” Dia x 2 ½” depth.
•TTU®-1 AB same as TTU®-1 A, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AJ same as TTU®-1 A, but with a removable
gooseneck microphone.
•TTU®-1 AJB same as TTU®-1 AJ, but with bullet-resistant
option (UL Level 3).
•TTU®-1 AC same as TTU®-1 A without gooseneck
microphone for use headset only.
•TTU®-1 AJC same as TTU®-1 AJ
•TTU®-1 D Battery operated unit without gooseneck
microphone for use headset only.
•Complete with rechargeable batteries and charger. Housing 5”
Dia x 3 ½” depth.
•TTU®-1 DB same as TTU®-1 D, but with bullet-resistant
option (UL Level 3).
•TTU®-1 DJ same as TTU®-1 D, but with a removable
gooseneck microphone.
•TTU®-1 DJB same as TTU®-1 DJ, but with bullet-resistant
option (UL Level 3).
Talk-Thru systems are shipped complete with cables, instructions
and power supply.
9
TTU - 1 A J
Removable Gooseneck
Microphone
R
TTU - 1 D
Rechargeable battery
operated unit
Norcon
Communications
117V AC/15V DC
R
10
TTU®-7 Special design for the window with a secure
pull-down gate or shade.
In some cases, when it’s impractical to mount the inside control section
of the TTU®-1 in a window with secure gate or shade the TTU-7®is
your choice.
The TTU®-7 incorporates the same high-quality electronics as the basic
TTU®-1 , but with a 1” or 1- 3/8” (TTU®-7B) low profile window
mount section, and a prism shaped counter mounting control section.
11
Introducing The Norcon TTU®-3 Series
There are times, when it is inconvenient to cut a 3” to 4” hole
through an isolation barrier; the Norcon TTU®-3 is the solution for
this situation.
The TTU®-3 is a pair of 6” or 12” prism-shaped units for mounting
on a counter top on both sides of a barrier. They allow hands free
communication through barriers typically found in banks, cashier’s
booths, information booths, and similar environments.
12
TROUBLESHOOTING
You may occasionally encounter a problem with your
TTU®system. If this happens, refer to the following list. If
additional help is needed, please contact us.
1. No sound at all
•Is the power supply properly plugged into a working
outlet ?
If the power supply has been plugged into a working outlet
for a while, the power supply should be warm, if it is not; the
power supply may be defective.
2. Howling ( Feed back)
•Is the TALK or LISTEN volume turned too high?
Set the volume control to a proper level. In most cases, both
TALK and LISTEN should be set to the position of around 11
to 12 o’clock.
3. Conversation cutting-off and breaking-up
•Is the TALK volume setting too high?
Turn down TALK volume to a proper level.
•Is the attendant talking too far from the gooseneck
microphone?
The idea distance is 3” to 4” from the gooseneck microphone.
4. TTU®-1 D does not work when operated by internal
battery
•Are the batteries fully charged?
If the unit is newly installed, allow the batteries to be charged
for 10-12 Hrs before operating. The unit can be used while the
batteries are being charged.
•Is the battery charger plugged into a working outlet?
If the battery charger is plugged into a working outlet, and
the batteries are being charged, the battery charger should be
warm, if it is not; the battery charger may be defective.
13
Service Policy
TALK-THRU SYSTEM WARRANTY REPAIRS
CRL warrants these products to be free from defects in
material and workmanship for a period of one year
from the date of shipment provided:
1) The product has not been abused, misused or
improperly maintained, repaired and /or modified during
such period, and 2) such defect is not a result of voltage
surges/ burnouts, lightning, water damage / flooding, fire,
explosion, earthquakes, tornadoes, acts of aggressions /
war or similar phenomenon; and 3) the product has been
properly installed according to the Installation Guide.
Both incoming and outgoing freight charges are at customer’s
expenses. Domestic repair will be returned to customer by UPS
Ground. International repair will be returned to customer using
normal shipping arrangements. Any other shipping instructions
must be made in writing and will be at the customer’s expense.
* For Information:
Phone: [phone]
Email: [email protected]
www.crlaurence.com
14 AVDB3226_02/15