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S768DAV – S7768DAV
Fiber Optic Transmission System

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Содержание S768DAV

Страница 1: ...S768DAV S7768DAV Fiber Optic Transmission System ...

Страница 2: ...ed in any form or by any means without the prior written permission of GE Interlogix Video Systems Group The information contained in this document is subject to change without notice GE Interlogix Video Systems Group in keeping pace with technological advances is a company of product innovation Therefore it is difficult to ensure that all information provided is entirely accurate and up to date G...

Страница 3: ...1 2 7 INPUT IMPEDANCE 12 3 INSTALLATION 13 3 1 RACK CARDS 13 3 2 502R RACK CARD ENCLOSURES 13 3 3 CONNECTIONS 14 3 3 1 BACK PANEL CONNECTIONS 15 3 3 2 INTERFACE BOARD CONNECTIONS 16 3 3 3 BUILT IN TERMINATION 19 3 3 4 VIDEO CABLE CONNECTIONS 20 3 3 5 AUDIO CONNECTIONS 20 3 3 6 FIBER OPTIC CABLE CONNECTIONS 20 3 3 7 STANDALONE MODULE POWER CONNECTIONS 21 3 3 8 RACK MODULE POWER CONNECTIONS 21 4 OPE...

Страница 4: ... DATA 1 2 IN OUT INDICATORS 23 4 2 6 CONTACT 1 2 IN OUT INDICATORS 24 4 2 7 ENABLED 1 2 INDICATORS 24 4 3 VIDEO TEST PATTERNS 24 4 4 TEST MODE 24 5 TROUBLESHOOTING 26 APPENDIX A RS485 APPLICATION NOTES 27 A 1 INTRODUCTION 27 A 2 CONNECTION 27 A 3 CONFIGURATION 27 A 4 TERMINATION 27 ...

Страница 5: ...troubleshooting this product refer to this document and any other documentation provided If you still have questions please contact Technical Support and Sales GE Interlogix Video Systems Group Call 800 469 1676 Fax 541 752 9096 Note You should be at the equipment and ready with details before calling Technical Support Conventions Used in this Manual Boldface or button icons highlight command entr...

Страница 6: ...Before You Begin S768DAV S7768DAV User Manual 6 11 0768DAV B December 2003 ...

Страница 7: ...smission systems offer simultaneous real time transmission of One channel of two way 9 bit digital video Two channels of two way high quality audio HQA Two channels of two way multi protocol data MPD Two channels of two way relay contact closures The S768DAV system operates over one or two multimode fibers and the S7768DAV uses one or two single mode fibers A complete system consists of an S768DAV...

Страница 8: ...coding schemes utilized in Manchester and Biphase these formats are exempt from translation Data translation examples are shown in Table 1 Table 1 Data Translations Translation TX Switch Setting RX Switch Setting Comments TTL to RS232 three wire 3 1 Signal level conversion RS232 three wire to TTL 1 3 Signal level conversion TTL to RS422 3 4 Single ended to differential conversion RS422 to TTL 4 3 ...

Страница 9: ... using DATA SELECT switch SW1 channel 1 and SW2 channel 2 2 Select a data format for each Data channel on the receiver using DATA SELECT switch SW1 channel 1 and SW2 channel 2 NOTE The DATA SELECT switches SW1 and SW2 on the audio data card are shipped in the Auto Configure setting position 0 SW1 SW7 SW5 SW4 SW6 SW3 SW8 SW2 Figure 2 S768DAV Location of Switches Figure 3 DATA SELECT Switches SW1 an...

Страница 10: ... switches SW1 or SW2 on one unit to position 0 default setting 2 Set the DATA SELECT switches SW1 or SW2 on the other unit to the desired format 3 If the data format needs to be changed for a particular channel only the DATA SELECT switches on one unit need to be changed The other unit remains in position 0 and will auto configure according to the selected data format 2 4 OPTICAL VIDEO ALARMS Rack...

Страница 11: ... 5 VIDEO FORMAT TEST PATTERN GENERATOR Switch SW8 1 Set DIP switch SW8 on the transmitter and receiver to the desired position 2 Ensure the switches on the transmitter and receiver are set to the same video format NOTE In order for the test pattern generator to operate properly both the transmitter and receiver must be set to the same format 2 6 AUDIO LEVEL The S768DAV system features dual audio l...

Страница 12: ... switches SW4 SW5 and SW7 should be set to 8 dB 3 You can set the transmitter input to 8 dBu and the receiver output to 18 dBu to add 10 dB of gain to the system however this also increases system signal to noise ratio S N 2 7 INPUT IMPEDANCE The S768DAV units are shipped with the input impedance set at high impedance high Z To select a 600Ω input impedance in place of the high Z input set switch ...

Страница 13: ... card is oriented right side up and slide it into the card guides in the rack until the edge connector at the back of the card seats in the corresponding slot in the rack s connector panel Seating may require thumb pressure on the top and bottom of the card s front panel CAUTION Do not press on any of the LEDs when installing cards into the rack Equipment damage may result 2 Tighten the two thumbs...

Страница 14: ...ill be installed and ensure that there is adequate space for making the various cable connections and for reading the diagnostic LEDs NOTE The type of screws chosen must be suitable for the surface on which the module is to be mounted 4 Standalone modules can be attached to suitable flat surfaces with four No 6 3 mm screws After the enclosure is securely attached to a flat surface the cable connec...

Страница 15: ...e unit by wiring a 26 pin male D connector AMP plug part number 748474 1 pin part number 748333 4 and attaching it to audio data connector J4 on the back panel of the unit See Figure 10 Table 3 lists the signal and pin information Audio Data Video Out Optical In Optical Out Video In Note Optical In connector is not present on 1 Fiber models Figure 10 S768DAV 2 Fiber Module Back Panel Connections 1...

Страница 16: ... 2 IN 22 5 VDC BIAS 10 CONTACT CHANNEL 2 OUT 23 GROUND 11 AUDIO CHANNEL 1 OUT 24 DATA CHANNEL 2 OUT 12 AUDIO CHANNEL 2 OUT 25 DATA CHANNEL 2 OUT 13 CONTACT CHANNEL 2 IN 26 DATA CHANNEL 2 IN 3 3 2 INTERFACE BOARD CONNECTIONS The S768DAV units are also supplied with an interface board that attaches directly to the back of the module The interface board contains screw terminal connectors for the audi...

Страница 17: ...IN 3 GROUND 3 GROUND 4 AUDIO CHANNEL 1 OUT 4 AUDIO CHANNEL 2 OUT 5 AUDIO CHANNEL 1 OUT 5 AUDIO CHANNEL 2 OUT 6 GROUND 6 GROUND Connector J6 Connector J7 1 CONTACT CHANNEL 1 IN 1 CONTACT CHANNEL 2 IN 2 CONTACT CHANNEL 1 IN 2 CONTACT CHANNEL 2 IN 3 CONTACT CHANNEL 1 OUT 3 CONTACT CHANNEL 2 OUT 4 CONTACT CHANNEL 1 OUT 4 CONTACT CHANNEL 2 OUT Table 5 J2 J3 Connections for RS232 Data SW1 SW2 Position 1...

Страница 18: ...NECTION 5 RS422 IN 6 RS422 IN 7 NO CONNECTION 8 GROUND Table 9 J2 J3 Connections for Manchester Biphase Data SW1 SW2 Position 5 Pin Signal 1 MANCHESTER BIPHASE OUT 2 MANCHESTER BIPHASE OUT 3 NO CONNECTION 4 NO CONNECTION 5 MANCHESTER BIPHASE IN 6 MANCHESTER BIPHASE IN 7 NO CONNECTION 8 GROUND Table 10 J2 J3 Connections for Manchester Biphase Termination Unit Data SW1 SW2 Position 5 Pin Signal 1 MA...

Страница 19: ...3 RS485 OUT 4 5 VDC BIAS OUT 5 RS485 IN 6 RS485 IN 7 TERMINATION TIE TO PIN 5 8 GROUND Table 13 J2 J3 Connections for SensorNet Data SW1 SW2 Position 6 Pin Signal 1 GROUND SHIELD 2 NO CONNECTION 3 NO CONNECTION 4 5 VDC BIAS OUT 5 SENSORNET 6 SENSORNET 7 TERMINATION TIE TO PIN 5 8 GROUND Table 14 J2 J3 Connections for Test Mode Loopback SW1 SW2 Position F Pin Signal 1 NO CONNECTION 2 TIE TO PIN 5 3...

Страница 20: ...nnection options include Balanced transmitter input to balanced receiver output Balanced transmitter input to unbalanced receiver output Unbalanced transmitter input to unbalanced receiver output Unbalanced transmitter input to balanced receiver output 1 For a balanced connection connect the external equipment to the and pins of the desired channel 2 For an unbalanced connection add a short jumper...

Страница 21: ...y is not connected to any power source and strip approximately 0 25 inches 6 mm of insulation from the ends of the cable 3 Taking care to observe the correct polarization of the cable insert one lead into one of the screw sockets and tighten the screw Confirm the security of the connection with a light pull on the cable 4 Repeat step 3 for the other conductor 5 Seat the connector in its position i...

Страница 22: ...de LED indicators for monitoring data and optical status The S768DAV fiber units have nine pairs of LED indicators that describe the current state of operation the current status of video audio and data signals and fiber optic signal strength These indicator pairs are LASER and LEVEL LOSS VIDEO IN OUT AUDIO 1 IN OUT AUDIO 2 IN OUT DATA 1 IN OUT DATA 2 IN OUT CONTACT 1 IN OUT CONTACT 2 IN OUT ENABL...

Страница 23: ...onitor screen the VIDEO IN and OUT LEDs can still be green 4 2 4 AUDIO 1 2 IN OUT INDICATORS The AUDIO IN or OUT LED indicates the strength of the audio signal by varying in intensity The AUDIO IN LED remains green as long as an adequate audio signal level is being input to the module If the audio input becomes too weak the LED will turn off The LED will be red when the audio level is clipped The ...

Страница 24: ...ted can notify the user of a fiber or video source failure by outputting specific test patterns on the user s monitor This mode verifies proper functionality of the digital decoding process and the fiber optic interconnections Follow the procedures described in paragraph 2 5 to enable the test pattern generator Figure 13 shows the test patterns displayed on the monitor Disabling the test pattern g...

Страница 25: ...perly LEVEL LOSSTM might be red or green indicating received fiber signal strength 4 The receiving unit should operate as follows ENABLED LED is GREEN indicating a valid data format is selected DATA OUT LED should slowly flash amber green off This indicates that the fiber path from the unit set for Test mode is reliable DATA IN LED should be OFF indicating there is no input copper connection made ...

Страница 26: ...e Connect audio input to module Audio source not powered up Apply power to audio source AUDIO IN OUT LED is OFF Audio source not transmitting Check audio source and cabling Tri state condition No action required Data input not connected to module Connect data input to module Data source not powered up Apply power to data source DATA IN LED is OFF Data source not transmitting Check data source and ...

Страница 27: ...esigned for much larger fail safe offsets To be able to interface to such equipment the S768DAV MPD units offer two more offset level modes In most cases the S768DAV unit should be configured for standard offset operation When the system is operating properly the DATA IN and DATA OUT LEDs are off when there is no communication tri state and flash when data is being sent or received If the link is ...

Страница 28: ...RS485 Application Notes S768DAV S7768DAV User Manual 28 December 2003 11 0768DAV B ...

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