Connections
15
Connecting RS-422/RS-485 Device
Use these ports to connect PTZ Device or an external device of RS-422/RS-485 format.
RS-422 device :
Set the dip-switch to RS-422 mode and connect as shown below.
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
Termination OFF
Termination ON
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
RS-485 device:
Set the dip-switch to RS-485 mode and connect as shown below.
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
RS-485
(FULL)
RS-485
(HALF)
Termination OFF
Termination ON
RS-485 HALF
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
RS-485 FULL
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
R+
R-
TRX+
TRX-
RS-422
T-
T+
RS-485
(FULL)
RS-485
(HALF)
T+
T-
R+
R-
Notes:
If you set the Termination S/W to ON, you must use the input impedance to 120 Ω.
•
Do not use the multiple RS-422/RS-485 device to connect the unit, it may cause the malfunction.
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