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C1525M-B (10/02) 19
CM9760/9740 CONTROL CONNECTIONS
There are two ways you can make the connections:
1. Via SERCOM Ports
2. Via Data Translator
SERCOM Ports
This is called the Virtual Keyboard Method because the SERCOM ports used for the VMX200 must be programmed as keyboard
ports. Pelco recommends this method because it supports all system control functions.
Follow these steps and refer to Figure 11.
1. Connect a PV130 converter to VMX200 COM 1 or COM 2.
2. Wire an RJ-45 reversed cable from the PV130 to the CM9760-CC1 or CM9740-CC1 RS-422 SERCOM port. For
convenience, use a wall block to connect the RJ-45 reversed cable to the SERCOM port.
3. Program the CC1's SERCOM port as a keyboard port.
Figure 11 shows two VMX200 workstations. For a single VMX200 workstation, use only one SERCOM port.
After you make the connections, open the Device Configuration window in the VMX200 software and add the CM9760/9740 to
your system. Refer to the VMX200 Software Installation/Operation Manual for detailed instructions on system configuration.
The CM9760/9740 settings must match the VMX200 COM port settings. Refer to the CM9760/9740 Installation/Operation
Manuals for instructions on setting baud rate, parity, and other settings.
Figure 11. CM9760/CM9740 Control Connections to SERCOM Ports