QVS Interface Converter IC-485S - Manual (Page 9)

IC-485S/IC-485SI OPERATION
3-5 SIMPLEX/ TRANSMIT, RECEIVE ONLY
PC1
COM1/
COM2
=>
B1
=>PC2
COM1/
COM2
=>PC3
COM1/
COM2
Configuration:
=>PC4
COM1/
COM2
A DCE/DTE TxON, RxON
Bn DCE/DTE TxON, RxON
Note: Bn means any one of the B 1, B2, B3 and so on.
Figure 3-5 SIMPLEX/TRANSMIT, REC-EIVE
ONLY
12 User’s Manual
OPERATION IC-485S/IC-485SI
3-6 MONITORING
Device 1
(for IC-485S only)
Device 2
COM2
Note: R+ and R- signals are converted and linked to
the RS-232 port, DB-25 pm 3. R’ + and R’
(T+ and T-) signals are converted and linked
to the RS-232 port, DB-25 pm 2.
Configuration:
A M O N I TxRTS, RxON
Note: The RTS must be at the low level in monitoring
mode.
Figure 3-6 MONITORING
User’s Manual 13