QVS IC-485SI User Manual

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

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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

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