Issue
The CM9760-CXTA is not working with the 3rd party system and needs to be isolated for testing purposes.
Product Line
Pelco Video Management, Pelco Matrix
Environment
- Pelco CM9760-CXTA Coaxitron Translator (D-Protocol) RS-422)
- Glasskeyboard version 2.13A (with Extended Protocols and Advanced Features)
- PC Windows XP or Windows 7
Cause
The CM9760-CXTA is not operating as expected due to one or more of the following reasons:
- Communications Settings are misconfigured, including the PTZ protocol, baud rate, parity, or RS-422 incompatibility
- Wiring is misconfigured
- Device(s) are blocking the coaxitron control protocol (ie. in-line, video amplifiers, baluns, surge suppressors, etc.)
- PTZ camera does not support the Pelco Coaxitron Protocol
Resolution
Section 1: CM9760 Dip Switch Settings D Protocol |
Section 2: PC to CM9760-CXTA Data Wiring |
Section 3: CM9760-CXTA Video Connections |
Section 4: Glass Keyboard Software Setup |
Section 1: CM9760-CXTA Dip switch Settings (D Protocol)
- Power OFF the CM9760-CXTA
- Turn dip switch 3 to the ON (Up) position. This will set the Protocol to D, the baud rate to 2400, and the parity to none.
- Turn dip switch 8 to the ON (Up) position. This will set the receiver type to Spectra.
- Turn all other dip switches to the OFF (Down) position.
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Power ON the CM9760-CXTA
Section 2: PC to CM9760-CXTA Data Wiring. (Note: For testing purposes the length of this cable should not exceed 10ft)
- PC (DB9) pin 5 GND to CM9760-CXTA (RJ-45) pin 8 Rx (+)
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PC (DB9) pin 3 TXD to CM9760-CXTA (RJ-45) pin 7 Rx (-)
Section 3: CM9760-CXTA Video Connections
- Connect a coaxial cable directly from the Pelco coaxitron camera to BNC #1 of the CM9760-CXTA
- Connect a second coaxial cable from the CM9760-CXTA to a monitor (75 ohm terminated)
Section 4: Glasskeyboard Software Setup
- Download and install Glasskeyboard here: https://schneider-electric.box.com/s/uy95xa912ag0q789e7kf
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Click on Mode and select D Protocol
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Click on File then Settings
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Adjust the baud rate to 2400 and the parity to None. Click Save
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Click on Ports then select the appropriate COM port. This will place a checkmark in front of the COM port, in this case COM1 is the active port.
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Enter a 1 in the Address COM1 field. Place the mouse cursor over the joystick, left click and hold, then move the camera. The PTZ control will be sent out the CM9760-CXTA (BNC#1)