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20 C1525M-B (10/02)
Data Translator
You can also connect the CPU to a VMX200 via the CM9760-DT. This method does not allow complete control of cameras
connected serially to the CM9760/9740-CC1 (including presets). Therefore, Pelco recommends this method only for situations
where the Virtual Keyboard Method is not possible.
Follow these steps and refer to Figure 12:
1. Connect a null modem cable from VMX200 COM 1 or COM 2 to CM9760-DT COM A.
2. Connect another null modem cable from CM9760-DT COM B to an RS-232 COM port on either the CM9760-CC1 or
CM9740-CC1.
3. Program the CC1’s RS-232 port for ASCII protocol.
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 12. CM9760/CM9740 Control Connections Using Data Translator
PRINTER COM1 COM2
CM9760-CC1
CM9740-CC1
CM9760-DT
CM9760-CC1
CM9740-CC1
OR
VMX200 -SYS
RS-232
VMX200 COM
PORT SETTINGS
DATA BITS:
STOP BITS:
FLOW CONTROL:
8
1
NONE
12 VAC
A
B
1 2
NULL MODEM
CABLE
NULL
MODE
M
CABLE