When an ASCII device such as an Access Control System sends out a command to the Data Translator, the CM97XX -CC1 fail's to respond.
The CM9760-DT / DT4 Data Translator version 7 is incompatible with CM97XX-CC1 running version 8 and above.
Pelco Video Management, Pelco Matrix
- CM9760-DT version 7
- CM9760-DT4 version 7
- CM97XX-CC1 version 8.XX
The CM97XX-CC1 is running version 8 and above and the CM9760-DT / DT4 is running version 7
To upgrade the CM9760-DT /DT4 to version 8 you will need an PC with a RS232 port a terminal program (IE HyperTerminal) and a NUL modem cable.
1. Connect the NULL modem cable to the CM9760-DT / DT4 and connect the DT to the CM97XX-CC1
2. Open up the terminal program and match the baud rate and parity of the DT with 8 bits 1 stop bit and no flow control
3. Input the following command in to the terminal screen 8va
Note: you will get a return of ver. 8
Now the CM9760-DT / DT4 has been successfully downgraded