3.4 Wiring for Communication Cassettes COM.1 to COM.4 Ports3-193.4.5 Communication Cassette AFP7CCS1M1 (RS-232C 1-Channel + RS-4851-Channel Insulated Type) Settings for termination resistance selector switchA termination resistance selector switch is located on the RS-485 side of the surface ofCommunication Cassette AFP7CCS1M1. Turn ON the switch only when it is the end unit.Terminalno.LED partSymbolTerminalpartSymbolFunctions thatcan be allocatedSignaldirectionPorts that can beallocatedin the software1 CH1 SD + Transmission line (+) -2 RD - Transmission line (-) -3 + Transmission line (+) -4 - Transmission line (-) -COM.15 - 6 - - - - -7 CH2 SD SD Sent data -8 RD RD Received data -9 SG SG Signal ground -COM.2(Note 1) Terminal No.1 and Terminal No.3, and Terminal No.2 and Terminal No.4 are respectively connected inside.(Note 2) Do not connect anything to Terminals No.5 and No.6.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
