Installation manual

7
4
Monitor Mode
Monitor configuration means an IC485S / GB / EU device can be wired to the lines of
RS-232 or RS-422 devices to monitor the line signals. In this configuration the IC485S /
GB / EU will change the function of the T+ and T- to R’+ and R’- respectively.
Before operating, the user must complete the installation according to the
procedure mentioned.
Once the installation has been done, the device should operate as the setting function.
Note: R+ and R- signals are converted and linked to the RS-232 port and DB25 pin 3.
R’+ and R’- (T+ and T-) signals are converted and linked to the RS-232 port DB25 pin 2.
Note: The RTS must be at the low level in monitoring mode.
T+
T-
R-
R+
Device 1
R+
R-
T-
T+
PC
COM1/
COM2
=>
Device 2
T+ (R'+)
T- (R'-)
R-
R+
IC485S
A
Device
A
SW1
MONI
SW2
TxRTS, RxON
Monitoring
Configuration