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USER’S MANUAL

P/N: 122995 Rev. D

Models 7220 and 7221

RGBHV Video with
Stereo Audio

WORLD HEADQUARTERS

55 Cabot Court

Hauppauge, N.Y. 11788 USA

Tel: (631) 273-0404      Fax: (631) 273-1638

www.commspecial.com

Email: 

[email protected]

Communications Specialties Pte Ltd

100 Beach Road

#22-09 Shaw Tower

Singapore 189702

Tel:  +65 6391 8790     Fax: +65 6396 0138

Email: 

[email protected]

Summary of Contents for 7220

Page 1: ...ORLD HEADQUARTERS 55 Cabot Court Hauppauge N Y 11788 USA Tel 631 273 0404 Fax 631 273 1638 www commspecial com Email info commspecial com Communications Specialties Pte Ltd 100 Beach Road 22 09 Shaw Tower Singapore 189702 Tel 65 6391 8790 Fax 65 6396 0138 Email csiasia commspecial com ...

Page 2: ...pecifications 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 CONTENTS 1 ...

Page 3: ...may be easily monitored using integral indicator LEDs on each unit that continuously signify the presence of baseband video and audio signals Introduction Technical Specifications Model Part Number Configurations Unit Type Part Number Transmitter Box 7220 B7S Transmitter Rack Card 7220 C7S Receiver Box 7221 B7S Receiver Rack Card 7221 C7S All units transmit at 1310 nm wavelength over single mode o...

Page 4: ... 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 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 1o Cr...

Page 5: ... Series transmission systems are ready for immediate use There are indicator LEDs on the units for moni toring purposes The following instructions describe the typical instal lation procedure and the function of the LED indicators 1 Connect the video source to the video input HD 15F connector on the transmitter unit 2 Connect the video output on the receiver unit to the HD 15F connector 3 Connect ...

Page 6: ...ld now be operational Note that the rack card version has an additional red LED for indicat ing the presence of an alarm condition loss of signal Refer to the table on the following page for alarm enables System Connections The input and output connections for the Pure Digital Fiberlink 7220 Series system are as follows Audio Connector Transmitter Receiver 3 5mm stereo jack Video Connector Transmi...

Page 7: ...nitor the state of the unit The rack card version of this product has an additional red indicator LED that lights when an alarm condition exists The rack card unit also Note Loss of Video refers to either loss of horizontal or vertical sync Loss of Signal refers to the absence of an optical signal Alarm Switch Settings Transmitter Card Version Only Switch Position Alarm Indication On Off 1 Loss of...

Page 8: ...icates audio detected on the transmitter unit Alarm ON Loss of video rack card only RECEIVER Video OFF Indicates no video detected over 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 fiber and as a result video present on the output provides an output to dri...

Page 9: ...KING Indicates audio detected over fiber and as a result active audio detected by the receiver unit Alarm ON Loss of video or optical signal rack card only 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 Thi...

Page 10: ...isconnect the transmitter 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 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 usuall...

Page 11: ...le 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 Hauppau...

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