Signal – AAEON PFM-C42C User Manual

Page 18

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P C / 1 0 4 P e r i p h e r a l M o d u l e

P F M - C 4 2 C

PFM-C42C Quick Installation Guide

1-18

1.15 RS-232 Serial Port Connector (COM1) (For 4/8-port)

Pin S i g n a l

P i n S i g n a l

1 DCD#1(485D-

422TXD-) 2 RXD1(422RXD+)

TXD1(485D+ / 422TXD+)

DTR#1(422RXD-)

5 GND

6 DSR#1

7 RTS#1

8 CTS#1

9 RI#1

N.C

1.16 RS-232 Serial Port Connector (COM2) (For 4/8-port)

Pin S i g n a l

P i n S i g n a l

1 DCD#2(485D-

422TXD-) 2 RXD2(422RXD+)

TXD2(485D+ / 422TXD+)

DTR#2(422RXD-)

5 GND

6 DSR#2

7 RTS#2

8 CTS#2

9 RI#2

N.C

1.17 RS-232 Serial Port Connector (COM3) (For 4/8-port)

Pin S i g n a l

P i n S i g n a l

1 DCD#3

2 RXD3

3 TXD3

4 DTR#3

5 GND

6 DSR#3

7 RTS#3

8 CTS#3

9 RI#3

N.C

1.18 RS-232 Serial Port Connector (COM4) (For 4/8-port)

Pin S i g n a l

P i n S i g n a l

1 DCD#4

2 RXD4