Ch 2 Installation 35COM 1 RS-232 (CN17)Pin Signal Pin Signal1 DCD1 2 RXD13 TXD1 4 DTR15 GND 6 DSR17 RTS1 8 CTS19 RI1 10 N.C.COM 1 RS-232 Serial Port (CN17)COM 2 RS-232/422/485 (CN17)Pin Signal Pin Signal1 DCD2(485TXD-) 2 RXD2 (422RXD+)3 TXD2(485TXD+) 4 DTR2 (422RXD-)5 GND 6 DSR27 RTS2 8 CTS29 RI2 10 N.C.PS/2 Keyboard and Mouse Connector (CN18)Keyboard and mouse connectorPin Signal Pin Signal1 MS CLOCK 2 KB CLOCK3 +5V 4 GND5 KB DATA 6 MS DATA7 N/C 8 N/C
