LG LVS301 series, Owner'S Manual

Page: 15 / 48

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. •