QVS IC-485SI user manual POINT-TO-POINT/2-WIRE Half DU, Plex, ALF Duplex

IC-485S/IC-485SIOPERATIONOPERATIONIC-485S/IC-485SI

3-1P O I N T - T O - P O I N T / ~ - WIRE FULL DU-				3-2 POINT-TO-POINT/2-WIRE HALF DU-
PLEX		A	B
r/
		T+I	IR+	/
	I
				Configuration:
Configuration:

A1 DCWJITE ) TxON,RxON

B1 DCE/DTE ) TxON,RxON

Figure 3-2 POINT-TO-POINT/2-WIRE H-

ALF DUPLEX

Figure 3- 1 POINT-TO-POINT/4-WIRE FULL

DUPLEX

In above Figure if the PC 1 is a DTE device, then the Device A should set the SW1 to DCE. If the PC1 is a DCE device, then the Device A should set the SW1 to DTE. The switch setting method for the Device B is identical to Device A’s.

Note: All the SW1 setting in this Chapter are follow- ing the setting rule indicated in this Section.

8 User’s Manual User’s Manual 9