Fiberlink 7220, 7221 User Manual
RGBHV Video with
Stereo Audio
USER’S MANUAL
Models 7220 and 7221
Tel: (631) 273-0404 Fax: (631) 273-1638
Communications Specialties Pte Ltd
Tel: +65 6391 8790 Fax: +65 6396 0138
Email: csiasia@commspecial.com
WORLD HEADQUARTERS
55 Cabot Court
Hauppauge, N.Y. 11788 USA
www.commspecial.com
Email:
info@commspecial.com
100 Beach Road
#22-09 Shaw Tower
Singapore 189702
P/N: 122995 Rev. D
CONTENTS
General Information ................................................... 3
Introduction ............................................................ 3
Technical Specifications ......................................... 3
Installation Instructions .............................................. 5
Installation Procedure ............................................. 6
System Connections ............................................... 6
Alarm Switch Settings ............................................ 7
Indicator LEDs and Alarm Circuitry ...................... 7
Operating Pointers and Troubleshooting ................... 9
Maintenance and Repairs ......................................... 10
Limited Warranty ..................................................... 11
1
GENERAL INFORMATION
Introduction
The Pure Digital Fiberlink® 7220 Series is a transmitter/receiver pair
that transmits a single channel of RGBHV video and two audio channels over one single mode or multimode fiber. It is available as a freestanding box unit or as a card version for use in the rackmountable
6000A card cage.
The system’s all digital encoding delivers noise-free transmissions
that retain all of their initial parameters, regardless of fiber optic cable
attenuation. System operation may be easily monitored using integral
indicator LEDs on each unit that continuously signify the presence of
baseband video and audio signals.
Technical Specifications
Model Part Number Configurations:
All units transmit at
Unit Type Part Number
1310 nm wavelength
Transmitter Box 7220-B7S
over single mode or
Transmitter Rack Card 7220-C7S
multimode fiber. ST
Receiver Box 7221-B7S
connectors are
Receiver Rack Card 7221-C7S
provided.
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 ......... 31.5 to 60 kHz
V Sync Frequency Range ......... 30 to 85 Hz
Number of Video Channels ...... 1 RGBHV
RGB Format Supported ............ RGB with separate H and V
3
Signal Connectors ................................ HD-15F
RGB Processing ................................... 24 bits, no compression or
scaling
Audio:
Number of Audio Channels.................. 2, unbalanced
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 ................... +/-0.1
o
Crosstalk ............................................... Min. 95 dB (1 kHz)
Signal Connectors ................................ 3.5mm Stereo jack
Audio to Video Diff. Delay (skew) ..... <300 uS
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
Miscellaneous:
Operating Temp. Range ........... -20 to +60 degrees C
Operating Power ...................... 9-24 Volts AC or DC@5 watts (max.)
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