Pure Digital Fiberlink 7235 User manual

USER’S MANUAL
P/N: 123412 Rev. B
Receiver Model 7235
RGBHV Video with Stereo Audio
Receiver Card for Pioneer PDPs
(with optical loop-through)
WORLD HEADQUARTERS
55 Cabot Court
Hauppauge, N.Y. 11788 USA
Tel: [phone] Fax: [phone]
www.commspecial.com
Email:[email protected]
Communications Specialties Pte Ltd
100 Beach Road
#22-09 Shaw Tower
Singapore 189702
Tel: [phone] Fax: [phone]
Email: [email protected]

General Information ................................................... 3
Introduction ............................................................3
Technical Specifications......................................... 3
Installation Instructions .............................................. 5
Installation Procedure.............................................5
System Connections ............................................... 8
Indicator LEDs .......................................................9
Operating Pointers and Troubleshooting .................10
Maintenance and Repairs .........................................11
Limited Warranty ..................................................... 12
CONTENTS
1
LIMITED WARRANTY
Communications Specialties, Inc. (CSI) warrants that for a period of
three years after purchase by the Buyer, the Pure Digital Fiberlink®
7235 receiver will be free from defects in material and workmanship
under normal use and service. A Return Material Authorization (RMA)
number must be obtained from CSI before any equipment is returned
by the Buyer. CSI’s obligation under this warranty will be limited, at its
option, to either the repair or replacement of defective units, including
free materials and labor. In no event shall CSI be responsible for any
incidental or consequential damages or loss of profits or goodwill. CSI
shall not be obligated to replace or repair equipment that has been dam-
aged by fire, war, acts of God, or similar causes, or equipment that has
been serviced by unauthorized personnel, altered, improperly installed
or abused.
RMA numbers and repairs can be obtained from:
Communications Specialties, Inc.
55 Cabot Court
Hauppauge, NY 11788 USA
Tel: [phone] Fax: [phone]
www.commspecial.com Email: [email protected]
Or, in the Asia Pacific Region:
Communications Specialties Pte Ltd
100 Beach Road, #22-09 Shaw Tower
Singapore 189702
Tel: [phone] Fax: [phone]
Email: [email protected]
Please have your serial number (located on the top label of the unit)
available with contacting us.
12

GENERAL INFORMATION
The Pure Digital Fiberlink®7235 plug-in receiver card for RGBHV
video with stereo audio fits within the video expansion slot located on
fourth-generation Pioneer Display Panels* (PDPs), allowing the PDP
to directly receive signals over one fiber from any Pure Digital Fiberlink
7220 Series transmitter, repeater or 8000/8100 Series O.D.A. It
operates at 1310 nm wavelength and works with either single mode or
multimode fiber. An external baseband output allows connection to an
additional PDPor distribution amplifier.An active optical loop-through
provides the ability to support drop-and-repeat system configurations.
The 7235plug-in card employs all digital processing, thereby pro-
viding a noise-free signal that maintains all of its initial parameters,
regardless of fiber optic cable attenuation. It also guarantees consistent
video and audio quality across multiple, daisy-chained displays.
Introduction
Technical Specifications
Model Part Number Configuration: Unit operates at
1310 nm wavelength
with single mode or
multimode fiber. ST
connectors are
provided.
3
Video:
Input Impedance ....................... RGB: 75 Ohms; H&V: Hi-Z
Input Level................................ RGB: 714 mV p-p; H&V: 3 to 5 V p-p
H Sync Frequency Range ......... 15 to 60 kHz
V Sync Frequency Range ......... 30 to 85 Hz
Video Channels Supported ........ 1 RGBHV
Receiver Type Part Number
1 internal display output; 1 external output 7235-P7S
and 1 optical loop-through output
OPERATING POINTERS AND TROUBLESHOOTING
Optical Fiber:
The 7235 receiver card operates with most multimode (MM) and
single mode (SM) optical fibers. All models within the 7220 Series use
the same 1310 nm wavelength and optics for transmitting over multi-
mode or single mode fiber, but be aware that the type of fiber you use
will affect the system’s loss budget and the maximum transmission dis-
tance that it can support.
Troubleshooting:
Multimode fiber optic cable contains an optical fiber with a light
carrying “core” that is only .0025 inches (62.5 microns) in diameter.
Single mode fiber optic cable has an even smaller “core,” only .00032
to .0004 inches (8-10 microns). This is smaller than a human hair!
Therefore, any minute particles of dirt or dust can easily block the fiber
from accepting or radiating light. To prevent this from happening, al-
ways use the provided dust caps whenever optical connectors are ex-
posed to air. It is also a good idea to gently clean the tip of an optical
connector with a lint-free cloth moistened with alcohol whenever dust
is suspected.
The status of the VIDEO and AUDIO indicator LEDs should provide
the first clue as to the origin of an operational failure. If these are off, it
usually means that the fiber is broken or has too much attenuation. Next,
be certain that the input and output signal connections are correct.
If, after reviewing the above possibilities, the system is still not oper-
ating, please contact the Customer Service Department for further as-
sistance.
10
* Compatible PDP models (as of Sept. 2005) include:
PDP-504CMX, PDP-43MXE1, PDP-50MXE1, PDP-434CMX, PDP-504CMX-S,
PDP-43MXE1-S, PDP-50MX1-S. Other models may be added by Pioneer.

Optical:
Operating Wavelength ............. 1310 nm; MM or SM
Optical Fiber ............................ 62.5/125 microns MM,
50/125 microns MM or
8-10/125 microns SM
Optical Connector .................... ST
Audio:
Number of Audio
Channels Supported ................. 2, unbalanced
Number of Baseband
Stereo Audio Outputs .............. 1 internal PDP; 1 external
Frequency Response................. +0/-0.5 dB, 20 Hz to 20 kHz
Input Impedance ....................... >24 k Ohms
Output Impedance .................... <1 Ohm
Maximum Audio Level ............ +10 dBu
THD+N..................................... 0.005%; 20 Hz - 20 kHz
SNR (A-Weighted)................... 95 dB
Channel Phase Differential....... +/-0.1o
Crosstalk ................................... Min. 95 dB (1 kHz)
External Signal Connectors ...... 2 position RCA jack
Audio to Video Differential
Delay (skew) .............................. <300 uS
4
Number of Baseband
RGBHV Video Outputs ........... 1 internal PDP, 1 external
RGB Format Supported............ RGB with separate H and V
External Signal Connectors ...... HD-15F
RGB Processing ....................... 24 bits, no compression or scaling
Power: ON: (GREEN) Indicates that correct power has been applied.
Indicator LEDs:
The Pure Digital Fiberlink®7235 receiver has four integral indicator
LEDs that are used to monitor the state of the unit.
The status of the LEDs are as follows:
Video: OFF: Indicates no video detected over the fiber and, as a
result, no video present on the output.
BLINKING GREEN: Indicates either H or V sync detected
over the fiber but not both
STEADY GREEN: Indicates both H and V sync detected over
the fiber and, as a result, active video detected by the receiver
unit.
Audio: OFF: Indicates no audio detected over fiber and, as a result,
no active audio detected by the receiver unit.
BLINKING: Indicates audio detected over fiber and, as a
result, active audio detected by the receiver unit.
Tx: OFF: Indicates no optical loop-through output is present.
ON: Indicates optical loop-through output is present.
9

Miscellaneous:
Viewable PDP input................. Select “Input 3” from PDP menu
Operating Temp. Range........... -20 to +40 degrees C
Operating Power ...................... Internally powered by PDP
Loss Budget and Maximum Transmission Distance:
Wavelength Loss Budget (in dB) Distance* (in km)
1310 MM 0-15 0-0.75
1310 SM 0-15 0-30
*Distance specifications are only approximate and are not
guaranteed. Operating loss budget must not be exceeded.
5
Class I Laser Product complies with FDA perfor-
mance standard for laser products, Title 21, Code
of Federal Regulations, Sub-Chapter J
DANGER! The transmitting element in the Pure Digital
Fiberlink 7235 receiver card contains a solid state Laser Diode
located within the optical loop-through output connector. The
laser emits invisible infrared electromagnetic radiation which
can be harmful to human eyes. The radiation from this optical
connector, if viewed at close range without a fiber optic cable
connected to the optical connector, may be of sufficient inten-
sity to cause instantaneous damage to the retina of the eye.
Direct viewing of this radiation should be avoided at all times.
System Connections:
The external output connections for the Pure Digital Fiberlink®7235
model are as follows:
Audio Connector OUTPUT: 2 position RCA jack
Video Connector OUTPUT: HD-15F connector
Video Pin Out: RGBHV
1 Red Out
2 Green Out
3 Blue Out
4 N/C
5 Ground
6 Ground
7 Ground
8 Ground
9 N/C
10 Ground
11 N/C
12 N/C
13 Hor. Sync. Out
14 Vert. Sync Out
15 N/C
8
6. When power is applied, the green POWER LED on the 7235card
will light, indicating the presence of operating power.
7. The VIDEO, AUDIO and TX LEDs will give an indication as
described on page 9.
8. Using the PDP’s operational control menu, switch the input to #3.
The system is operational if you see the video and hear the audio
from the 7235 receiver card.

1. Before installing the 7235card, use a wiping cloth with rubbing
alcohol to remove any possible dust on the PCI connector. Using a
dry towel may cause a malfunction due to static electricity.
2. During installation, it is likely that you will place the PDP in the
prone position (PDP glass on bottom side). To protect the glass from
any damage, lay a mat or cloth in the area where you plan to work.
Make sure it is free of any debris that might cause scratches. Also, be
sure that the working area can support the weight of the entire front
case of the PDP.
3. Do not modify a 7235receiver card. It may cause a malfunction or
breakdown.
4. Do not modify or damage the inner side structure of the PDP.
5. When installing a 7235receiver card, be extremely cautious of static
electricity and the damage that it may incur. Do not touch any
components on the receiver card!
6
INSTALLATION INSTRUCTIONS
The following instructions explain how to:
1. Install the Pure Digital Fiberlink®7235plug-in card into the
expansion slot within a Pioneer PDP
2. Make fiber connections between the 7235card and a 7220 Series
transmitter
3. Operate the system.
Before proceeding, please make sure that the Pioneer PDP is turned
off, the power cable is disconnected and that no devices are connected
to the PDP.
Also, please take a moment to read the following precautions regard-
ing handling of the card, the PDP and the installation process.
6. This product is not manufactured for repeated insertion and extrac-
tion. Please be especially careful when inserting or extracting the
product from the PDP.
Inserting the Card:
1. Remove and save the screws at both ends of the slot cover, located on
the bottom of the Pioneer PDP. Remove the slot cover.
2. Align the board of the 7231 card with the rails on both sides of the
PDP slot.
3. Carefully and gently slide the 7231 card into the PDP, making sure
to keep the card straight. If the card is inserted at an angle or with too
much force, you may damage the card or the PDP.
4. After the card is fully and firmly inserted, use the screws that were
removed in step 1 to secure the 7231 card.
Connecting the System:
1. If using the external outputs on the 7231 card, connect the RGBHV
and Audio outputs to an additional display and amplified speakers or
to other devices.
2. Make sure the RGBHV and Audio inputs are connected to the 7220
Series transmitter unit.
3. Connect fiber optic cable from the optical output of the 7220 Series
transmitter to the optical input of the 7231 receiver card.
4. If using the drop-and-repeat function, connect fiber optic cable from
the optical output on the 7235 card to the optical input on any 7220
Series receiver. If connecting to another 7235 card or a 7225 or 7227
receiver, repeat this step as many times as necessary. If the optical
output on the 7235 card will not be used, be sure to leave the protec-
tive cap in place.
5. Apply power to the 7220 Series transmitter, the PDP and all daisy-
chained devices.
7

1. Before installing the 7231 card, use a wiping cloth with rubbing
alcohol to remove any possible dust on the PCI connector. Using a
dry towel may cause a malfunction due to static electricity.
2. During installation, it is likely that you will place the PDP in the
prone position (PDP glass on bottom side). To protect the glass from
any damage, lay a mat or cloth in the area where you plan to work.
Make sure it is free of any debris that might cause scratches. Also, be
sure that the working area can support the weight of the entire front
case of the PDP.
3. Do not modify a 7231 receiver card. It may cause a malfunction or
breakdown.
4. Do not modify or damage the inner side structure of the PDP.
5. When installing a 7231 receiver card, be extremely cautious of static
electricity and the damage that it may incur. Do not touch any
components on the receiver card!
6
INSTALLATION INSTRUCTIONS
The following instructions explain how to:
1. Install the Pure Digital Fiberlink®7231 plug-in card into the
expansion slot within a Pioneer PDP
2. Make fiber connections between the 7231 card and a 7220 Series
transmitter
3. Operate the system.
Before proceeding, please make sure that the Pioneer PDP is turned
off, the power cable is disconnected and that no devices are connected
to the PDP.
Also, please take a moment to read the following precautions regard-
ing handling of the card, the PDP and the installation process.
6. This product is not manufactured for repeated insertion and extrac-
tion. Please be especially careful when inserting or extracting the
product from the PDP.
Inserting the Card:
1. Remove and save the screws at both ends of the slot cover, located on
the bottom of the Pioneer PDP. Remove the slot cover.
2. Align the board of the 7235card with the rails on both sides of the
PDP slot.
3. Carefully and gently slide the 7235card into the PDP, making sure
to keep the card straight. If the card is inserted at an angle or with too
much force, you may damage the card or the PDP.
4. After the card is fully and firmly inserted, use the screws that were
removed in step 1 to secure the 7235card.
Connecting the System:
1. If using the external outputs on the 7235card, connect the RGBHV
and Audio outputs to an additional display and amplified speakers or
to other devices.
2. Make sure the RGBHV and Audio inputs are connected to the 7220
Series transmitter unit.
3. Connect fiber optic cable from the optical output of the 7220 Series
transmitter to the optical input of the 7235receiver card.
4. If using the drop-and-repeat function, connect fiber optic cable from
the optical output on the 7235 card to the optical input on any 7220
Series receiver. If connecting to another 7235 card or a 7225 or 7227
receiver, repeat this step as many times as necessary. If the optical
output on the 7235 card will not be used, be sure to leave the protec-
tive cap in place.
5. Apply power to the 7220 Series transmitter, the PDP and all daisy-
chained devices.
7

Miscellaneous:
Viewable PDP input................. Select “Input 3” from PDP menu
Operating Temp. Range........... -20 to +50 degrees C
Operating Power ...................... Internally powered by PDP
Loss Budget and Maximum Transmission Distance:
Wavelength Loss Budget (in dB) Distance* (in km)
1310 MM 0-15 0-0.75
1310 SM 0-15 0-30
*Distance specifications are only approximate and are not
guaranteed. Operating loss budget must not be exceeded.
5
Class I Laser Product complies with FDA perfor-
mance standard for laser products, Title 21, Code
of Federal Regulations, Sub-Chapter J
DANGER! The transmitting element in the Pure Digital
Fiberlink 7235 receiver card contains a solid state Laser Diode
located within the optical loop-through output connector. The
laser emits invisible infrared electromagnetic radiation which
can be harmful to human eyes. The radiation from this optical
connector, if viewed at close range without a fiber optic cable
connected to the optical connector, may be of sufficient inten-
sity to cause instantaneous damage to the retina of the eye.
Direct viewing of this radiation should be avoided at all times.
System Connections:
The external output connections for the Pure Digital Fiberlink®7235
model are as follows:
Audio Connector OUTPUT: 2 position RCA jack
Video Connector OUTPUT: HD-15F connector
Video Pin Out: RGBHV
1 Red Out
2 Green Out
3 Blue Out
4 N/C
5 Ground
6 Ground
7 Ground
8 Ground
9 N/C
10 Ground
11 N/C
12 N/C
13 Hor. Sync. Out
14 Vert. Sync Out
15 N/C
8
6. When power is applied, the green POWER LED on the 7235card
will light, indicating the presence of operating power.
7. The VIDEO, AUDIO and TX LEDs will give an indication as
described on page 9.
8. Using the PDP’s operational control menu, switch the input to #3.
The system is operational if you see the video and hear the audio
from the 7235 receiver card.

Optical:
Operating Wavelength ............. 1310 nm; MM or SM
Optical Fiber ............................ 62.5/125 microns MM,
50/125 microns MM or
8-10/125 microns SM
Optical Connector .................... ST
Audio:
Number of Audio
Channels Supported ................. 2, unbalanced
Number of Baseband
Stereo Audio Outputs .............. 1 internal PDP; 1 external
Frequency Response................. +0/-0.5 dB, 20 Hz to 20 kHz
Input Impedance ....................... >24 k Ohms
Output Impedance .................... <1 Ohm
Maximum Audio Level ............ +10 dBu
THD+N..................................... 0.005%; 20 Hz - 20 kHz
SNR (A-Weighted)................... 95 dB
Channel Phase Differential....... +/-0.1o
Crosstalk ................................... Min. 95 dB (1 kHz)
External Signal Connectors ...... 2 position RCA jack
Audio to Video Differential
Delay (skew) .............................. <300 uS
4
Number of Baseband
RGBHV Video Outputs ........... 1 internal PDP, 1 external
RGB Format Supported............ RGB with separate H and V
External Signal Connectors ...... HD-15F
RGB Processing ....................... 24 bits, no compression or scaling
Power: ON: (GREEN) Indicates that correct power has been applied.
Indicator LEDs:
The Pure Digital Fiberlink®7235 receiver has four integral indicator
LEDs that are used to monitor the state of the unit.
The status of the LEDs are as follows:
Video: OFF: Indicates no video detected over the fiber and, as a
result, no video present on the output.
BLINKING GREEN: Indicates either H or V sync detected
over the fiber but not both
STEADY GREEN: Indicates both H and V sync detected over
the fiber and, as a result, active video detected by the receiver
unit.
Audio: OFF: Indicates no audio detected over fiber and, as a result,
no active audio detected by the receiver unit.
BLINKING: Indicates audio detected over fiber and, as a
result, active audio detected by the receiver unit.
Tx: OFF: Indicates no optical loop-through output is present.
ON: Indicates optical loop-through output is present.
9

GENERAL INFORMATION
The Pure Digital Fiberlink®7235 plug-in receiver card for RGBHV
video with stereo audio fits within the video expansion slot located on
fourth-generation Pioneer Display Panels* (PDPs), allowing the PDP
to directly receive signals over one fiber from any Pure Digital Fiberlink
7220 Series transmitter, repeater or 8000/8100 Series O.D.A. It
operates at 1310 nm wavelength and works with either single mode or
multimode fiber. An external baseband output allows connection to an
additional PDPor distribution amplifier.An active optical loop-through
provides the ability to support drop-and-repeat system configurations.
The 7231 plug-in card employs all digital processing, thereby pro-
viding a noise-free signal that maintains all of its initial parameters,
regardless of fiber optic cable attenuation. It also guarantees consistent
video and audio quality across multiple, daisy-chained displays.
Introduction
Technical Specifications
Model Part Number Configuration: Unit operates at
1310 nm wavelength
with single mode or
multimode fiber. ST
connectors are
provided.
3
Video:
Input Impedance ....................... RGB: 75 Ohms; H&V: Hi-Z
Input Level................................ RGB: 714 mV p-p; H&V: 3 to 5 V p-p
H Sync Frequency Range ......... 15 to 60 kHz
V Sync Frequency Range ......... 30 to 85 Hz
Video Channels Supported ........ 1 RGBHV
Receiver Type Part Number
1 internal display output; 1 external output 7235-P7S
and 1 optical loop-through output
OPERATING POINTERS AND TROUBLESHOOTING
Optical Fiber:
The 7235 receiver card operates with most multimode (MM) and
single mode (SM) optical fibers. All models within the 7220 Series use
the same 1310 nm wavelength and optics for transmitting over multi-
mode or single mode fiber, but be aware that the type of fiber you use
will affect the system’s loss budget and the maximum transmission dis-
tance that it can support.
Troubleshooting:
Multimode fiber optic cable contains an optical fiber with a light
carrying “core” that is only .0025 inches (62.5 microns) in diameter.
Single mode fiber optic cable has an even smaller “core,” only .00032
to .0004 inches (8-10 microns). This is smaller than a human hair!
Therefore, any minute particles of dirt or dust can easily block the fiber
from accepting or radiating light. To prevent this from happening, al-
ways use the provided dust caps whenever optical connectors are ex-
posed to air. It is also a good idea to gently clean the tip of an optical
connector with a lint-free cloth moistened with alcohol whenever dust
is suspected.
The status of the VIDEO and AUDIO indicator LEDs should provide
the first clue as to the origin of an operational failure. If these are off, it
usually means that the fiber is broken or has too much attenuation. Next,
be certain that the input and output signal connections are correct.
If, after reviewing the above possibilities, the system is still not oper-
ating, please contact the Customer Service Department for further as-
sistance.
10
* Compatible PDP models (as of Sept. 2005) include:
PDP-504CMX, PDP-43MXE1, PDP-50MXE1, PDP-434CMX, PDP-504CMX-S,
PDP-43MXE1-S, PDP-50MX1-S. Other models may be added by Pioneer.

2
MAINTENANCE AND REPAIRS
The Pure Digital Fiberlink®7235 receiver card has been manufac-
tured using the latest semiconductor devices and techniques that elec-
tronic technology has to offer. It has been designed for long, reliable
and trouble-free service and are not normally field repairable. Should
difficulty be encountered, Communications Specialties maintains a com-
plete service facility to render accurate, timely and reliable service of
all products.
The only maintenance that can be provided by the user is to ascertain
that the optical connectors are free of dust or dirt that could interfere
with light transmission and that electrical connections are secure and
accurate. DANGER! Always turn off the transmitter’s power before
removing the optical fiber from the 7235 receiver card.
All other questions or comments should be directed to our Customer
Service Department. It should be noted that many “problems” can eas-
ily be solved by a simple phone call.
11

General Information ................................................... 3
Introduction ............................................................3
Technical Specifications......................................... 3
Installation Instructions .............................................. 5
Installation Procedure.............................................5
System Connections ............................................... 8
Indicator LEDs .......................................................9
Operating Pointers and Troubleshooting .................10
Maintenance and Repairs ......................................... 11
Limited Warranty ..................................................... 12
CONTENTS
1
LIMITED WARRANTY
Communications Specialties, Inc. (CSI) warrants that for a period of
three years after purchase by the Buyer, the Pure Digital Fiberlink®
7235 receiver will be free from defects in material and workmanship
under normal use and service. A Return Material Authorization (RMA)
number must be obtained from CSI before any equipment is returned
by the Buyer. CSI’s obligation under this warranty will be limited, at its
option, to either the repair or replacement of defective units, including
free materials and labor. In no event shall CSI be responsible for any
incidental or consequential damages or loss of profits or goodwill. CSI
shall not be obligated to replace or repair equipment that has been dam-
aged by fire, war, acts of God, or similar causes, or equipment that has
been serviced by unauthorized personnel, altered, improperly installed
or abused.
RMA numbers and repairs can be obtained from:
Communications Specialties, Inc.
55 Cabot Court
Hauppauge, NY 11788 USA
Tel: [phone] Fax: [phone]
www.commspecial.com Email: [email protected]
Or, in the Asia Pacific Region:
Communications Specialties Pte Ltd
100 Beach Road, #22-09 Shaw Tower
Singapore 189702
Tel: [phone] Fax: [phone]
Email: [email protected]
Please have your serial number (located on the top label of the unit)
available with contacting us.
12