INSTALLATIONS
CN2, J1, J10, J13: Serial Ports
CN2 (COM1) is a DB-9 conne ctor, while J1 (CO M2), J10 (COM3) and
J13 (COM4) are pin headers.
COM1 COM2/COM 3/COM4
Signal Name Pin # Pin # Signal Name
DCD, Data carrier detect 1 6 DSR, Data set ready
RXD, Receive data 2 7 RTS, Request to send
TXD, Transmit data 3 8 CTS, Clear to send
DTR, Data terminal ready 4 9 RI, Ring indicator
GND, ground 510 Not Used
J1 (COM2) is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal N ame
RS-232 R2-422 RS-485
1DCD TX- DATA-
2RX TX+ DATA+
3TX RX+ NC
4DTR RX- NC
5Ground Ground Ground
6DSR RTS- NC
7RTS RTS+ NC
8CTS CTS+ NC
9RI CTS- NC
10 NC NC NC
2801550 U ser’s Manual 17