Fiberlink 7223 User manual

USER’S MANUAL
P/N: 123202 Rev. A
Receiver Models 7223, 7225 and 7227
RGBHV Video with
Stereo Audio
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 .............................................. 6
Installation Procedure ............................................. 6
System Connections ............................................... 7
Indicator LEDs ....................................................... 8
Operating Pointers and Troubleshooting ................... 9
Maintenance and Repairs ......................................... 10
Limited Warranty ..................................................... 11
CONTENTS
1

GENERAL INFORMATION
The Pure Digital Fiberlink®7223, 7225 and 7227 receiver units for
RGBHV video with stereo audio provide a combination of multiple
baseband outputs and optical loop-through capabilities for drop-and-
repeat system configurations. All three models are compatible with any
transmitter unit within the 7220 Series. They operate at 1310 nm wave-
length and work with either single mode or multimode fiber. Following
are general descriptions of each unit:
7223 Receiver: 4 baseband outputs of high-res RGB with stereo audio
7225 Receiver: 1 baseband output of high-res RGB with stereo audio,
plus one optical loop-through output
7227 Receiver: 4 baseband outputs of high-res RGB with stereo audio,
plus one optical loop-through output
The units’ all digital encoding delivers noise-free transmissions that
retain all of their initial parameters, regardless of fiber optic cable at-
tenuation. System operation may be easily monitored using integral
LEDs on each unit that continuously signify the presence of baseband
video and audio signals.
Introduction
Technical Specifications
Model Part Number Configurations: All units operate at
1310 nm wavelength
with single mode or
multimode fiber. ST
connectors are
provided.
Receiver Type Part Number
4 baseband outputs 7223-B7S
1 baseband output; drop & repeat 7225-B7S
4 baseband outputs; drop & repeat 7227-B7S
3
MAINTENANCE AND REPAIRS
The Pure Digital Fiberlink®7223, 7225 and 7227 receivers have been
manufactured using the latest semiconductor devices and techniques
that electronic technology has to offer. They have been designed for
long, reliable and trouble-free service and are not normally field repair-
able. Should difficulty be encountered, Communications Specialties
maintains a complete service facility to render accurate, timely and re-
liable 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 unit!
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.
10

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
Number of Video
Channels Supported .................. 1 RGBHV
Number of Baseband
RGBHV Video Outputs ........... Model 7225: 1; Models 7223 & 7227: 4
RGB Format Supported ............ RGB with separate H and V
Signal Connectors .................... HD-15F
RGB Processing ....................... 24 bits, no compression or scaling
Audio:
Number of Audio
Channels Supported ................. 2, unbalanced
Number of Baseband
Stereo Audio Outputs .............. Model 7225: 1; Models 7223 & 7227: 4
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)
Signal Connectors .................... 3.5mm Stereo jack
4
OPERATING POINTERS AND TROUBLESHOOTING
Optical Fiber:
The 7223, 7225 and 7227 receivers operate 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 trans-
mitting over multimode 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 distance 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.
9

Miscellaneous:
Operating Temp. Range ........... -20 to +50 degrees C
Operating Power ...................... 9-24 volts AC or DC, 8 watts
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
Class I Laser Product complies with FDA performance standard for
laser products, Title 21, Code of Federal Regulations, Sub-Chapter J
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.
DANGER! The transmitting element in the Pure Digital Fiberlink 7225 and 7227
receiver units contain solid state Laser Diodes located within the
optical connectors. These lasers emit invisible infrared electromagnetic
radiation which can be harmful to human eyes. The radiation from these optical
connectors, if viewed at close range without a fiber optic cable connected to
the optical connector, may be of sufficient intensity to cause instantaneous
damagetotheretinaoftheeye.Directviewingofthisradiationshouldbeavoided
at all times.
5
Audio to Video Differential
Delay (skew) .............................. <300 uS
Power: ON: (GREEN) Indicates that correct power has been applied.
Indicator LEDs:
The Pure Digital Fiberlink®7223, 7225 and 7227 receivers each have
three 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.
8

INSTALLATION INSTRUCTIONS
Installation Procedure:
The Pure Digital Fiberlink®7223, 7225 and 7227 units are ready for
immediate use. Each model features indicator LEDs for monitoring pur-
poses. The following instructions describe the typical installation pro-
cedure and the function of the LED indicators.
1. Connect the RGBHV output(s) to computer monitor(s) or other
destination(s).
2. Connect the AUDIO output(s) to speakers or other destination(s).
3. Connect fiber optic cable from optical output of the 7220 Series trans-
mitter to the optical input of the 7223, 7225 or 7227 receiver unit.
4. If using the drop-and-repeat function available on the 7225 and 7227
units, then connect fiber optic cable from the optical output on these
units to the optical input on any 7220 Series receiver. If connecting to
additional 7225 or 7227 units for daisy-chain style signal distribution,
repeat this step as many times as necessary. If the optical output on a
7225 or 7227 receiver will not be used, be sure to leave the protective
cap on.
5. Apply power to all Pure Digital Fiberlink 7220 Series units. For the
7223, 7225 and 7227 units, refer to the DC power connection shown in
Figure 1.
6. When power is applied the green
POWER LED will light, indicating
the presence of operating power.
7. The VIDEO and AUDIO LEDs
will give an indication as described
on Page 8.
8. The system should now be operational.
6
System Connections:
The input and output connections for the Pure Digital Fiberlink®
7223, 7225 and 7227 models are as follows:
Audio Connector OUTPUT(S): 3.5mm stereo jack
Video Connector OUTPUT(S): HD-15F connector
Video Pin Out: RGBHV; RGBHV 1-4
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
7

INSTALLATION INSTRUCTIONS
Installation Procedure:
The Pure Digital Fiberlink®7223, 7225 and 7227 units are ready for
immediate use. Each model features indicator LEDs for monitoring pur-
poses. The following instructions describe the typical installation pro-
cedure and the function of the LED indicators.
1. Connect the RGBHV output(s) to computer monitor(s) or other
destination(s).
2. Connect the AUDIO output(s) to speakers or other destination(s).
3. Connect fiber optic cable from optical output of the 7220 Series trans-
mitter to the optical input of the 7223, 7225 or 7227 receiver unit.
4. If using the drop-and-repeat function available on the 7225 and 7227
units, then connect fiber optic cable from the optical output on these
units to the optical input on any 7220 Series receiver. If connecting to
additional 7225 or 7227 units for daisy-chain style signal distribution,
repeat this step as many times as necessary. If the optical output on a
7225 or 7227 receiver will not be used, be sure to leave the protective
cap on.
5. Apply power to all Pure Digital Fiberlink 7220 Series units. For the
7223, 7225 and 7227 units, refer to the DC power connection shown in
Figure 1.
6. When power is applied the green
POWER LED will light, indicating
the presence of operating power.
7. The VIDEO and AUDIO LEDs
will give an indication as described
on Page 8.
8. The system should now be operational.
6
System Connections:
The input and output connections for the Pure Digital Fiberlink®
7223, 7225 and 7227 models are as follows:
Audio Connector OUTPUT(S): 3.5mm stereo jack
Video Connector OUTPUT(S): HD-15F connector
Video Pin Out: RGBHV; RGBHV 1-4
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
7

Miscellaneous:
Operating Temp. Range ........... -20 to +50 degrees C
Operating Power ...................... 9-24 volts AC or DC, 8 watts
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
Class I Laser Product complies with FDA performance standard for
laser products, Title 21, Code of Federal Regulations, Sub-Chapter J
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.
DANGER! The transmitting element in the Pure Digital Fiberlink 7225 and 7227
receiver units contain solid state Laser Diodes located within the
optical connectors. These lasers emit invisible infrared electromagnetic
radiation which can be harmful to human eyes. The radiation from these optical
connectors, if viewed at close range without a fiber optic cable connected to
the optical connector, may be of sufficient intensity to cause instantaneous
damagetotheretinaoftheeye.Directviewingofthisradiationshouldbeavoided
at all times.
5
Audio to Video Differential
Delay (skew) .............................. <300 uS
Power: ON: (GREEN) Indicates that correct power has been applied.
Indicator LEDs:
The Pure Digital Fiberlink®7223, 7225 and 7227 receivers each have
three 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.
8

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
Number of Video
Channels Supported .................. 1 RGBHV
Number of Baseband
RGBHV Video Outputs ........... Model 7225: 1; Models 7223 & 7227: 4
RGB Format Supported ............ RGB with separate H and V
Signal Connectors .................... HD-15F
RGB Processing ....................... 24 bits, no compression or scaling
Audio:
Number of Audio
Channels Supported ................. 2, unbalanced
Number of Baseband
Stereo Audio Outputs .............. Model 7225: 1; Models 7223 & 7227: 4
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)
Signal Connectors .................... 3.5mm Stereo jack
4
OPERATING POINTERS AND TROUBLESHOOTING
Optical Fiber:
The 7223, 7225 and 7227 receivers operate 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 trans-
mitting over multimode 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 distance 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.
9

GENERAL INFORMATION
The Pure Digital Fiberlink®7223, 7225 and 7227 receiver units for
RGBHV video with stereo audio provide a combination of multiple
baseband outputs and optical loop-through capabilities for drop-and-
repeat system configurations. All three models are compatible with any
transmitter unit within the 7220 Series. They operate at 1310 nm wave-
length and work with either single mode or multimode fiber. Following
are general descriptions of each unit:
7223 Receiver: 4 baseband outputs of high-res RGB with stereo audio
7225 Receiver: 1 baseband output of high-res RGB with stereo audio,
plus one optical loop-through output
7227 Receiver: 4 baseband outputs of high-res RGB with stereo audio,
plus one optical loop-through output
The units’ all digital encoding delivers noise-free transmissions that
retain all of their initial parameters, regardless of fiber optic cable at-
tenuation. System operation may be easily monitored using integral
LEDs on each unit that continuously signify the presence of baseband
video and audio signals.
Introduction
Technical Specifications
Model Part Number Configurations: All units operate at
1310 nm wavelength
with single mode or
multimode fiber. ST
connectors are
provided.
Receiver Type Part Number
4 baseband outputs 7223-B7S
1 baseband output; drop & repeat 7225-B7S
4 baseband outputs; drop & repeat 7227-B7S
3
MAINTENANCE AND REPAIRS
The Pure Digital Fiberlink®7223, 7225 and 7227 receivers have been
manufactured using the latest semiconductor devices and techniques
that electronic technology has to offer. They have been designed for
long, reliable and trouble-free service and are not normally field repair-
able. Should difficulty be encountered, Communications Specialties
maintains a complete service facility to render accurate, timely and re-
liable 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 unit!
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.
10

2
LIMITED WARRANTY
Communications Specialties, Inc. (CSI) warrants that for a period of
three years after purchase by the Buyer, the Pure Digital Fiberlink®
7223, 7225 and 7227 receivers will be free from defects in material and
workmanship under normal use and service. A Return Material Autho-
rization (RMA) number must be obtained from CSI before any equip-
ment is returned by the Buyer. CSI’s obligation under this warranty
will be limited, at its option, to either the repair or replacement of de-
fective 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 equip-
ment that has been damaged 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.
11