AVer SA series - Manual (Page 91)

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RS485 pin hole of System Controller
RS485 to RS232
Converter site
System Controller site
R+ T+ 1
R- T- 2
T+ R+ 3
T- R- 4
4. Connect the RS232 cable to the RS232 port of the RS485 to RS232 converter.
5. Connect another side of RS232 cable to the RS232 port of the DVR server.
6. Power on the System Controller.
7. After hardware installation has complete, please remember to enable the System Controller in DVR
system (see also (13) System Controller Setup in Chapter 4.1 System Setting ).
8. How to operate the multiple DVRs; please refer to Switch to 485 DVR mode and Switch Control on
Multiple DVR Servers .
Please Do Not install System Controller and PTZ camera in RS485 port of DVR server at the same time. It
might cause conflict on operation.