LS-373 User’s Manual RS-232 & RS-422 & RS-485 Setting: Function JCSEL1 JCSEL2 7 1 11 1 8 2 12 2 7 1 11 1 8 2 12 2 7 1 11 1 8 2 12 2 7 1 11 1 8 2 12 2 SIR RS-422 RS-485 RS-232 COM1 2 8 CN_COM2 1 7 JCSEL1 2 12 1 11 JCSEL2 -40-