QVS IC-485SI user manual SIMPLEX/ TRANSMIT, Receive only, Monitoring

IC-485S/IC-485SIOPERATION

3-5 SIMPLEX/ TRANSMIT, RECEIVE ONLY

	B1
PC1 =>	=>PC2
COM1/	COM1/
COM2	COM2
	=>PC3
	COM1/
	COM2
	=>PC4
	COM1/
	COM2

Configuration:

A1 DCE/DTE 1 TxON, RxON Bn 1 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

OPERATIONIC-485S/IC-485SI

3-6 MONITORING		(for IC-485S only)
Device 1	RS-422lRS-405	Device 2

=>PC

COMl/

--lR+COM2

IC-48%

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:

A1 M O N I 1 TxRTS, RxON

Note: The RTS must be at the low level in monitoring mode.

Figure 3-6 MONITORING

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