IEI Integration LVDS-VGA-R10 - Manual (Page 14)

Chapter 3. Connection
This chapter describes how to connect peripherals, switches
and indicators to the PM-1004-R20 board.
3.1 RS-232/422/485 Connector
The serial ports are high speed NS16C550 compatible UART with
Read/Receive 16 byte FIFO.
CN5(RS-232): COM1 ~ COM4 Serial Port Connectors.
PIN NO DESCRIPTION PIN NO DESCRIPTION
1 DCD(COM1) 2 DSR(COM1)
3 RXD(COM1) 4 RTS(COM1)
5 TXD(COM1) 6 CTX(COM1)
7 DTR(COM1) 8
RI(COM1)
9 GND(COM1) 10 GND(COM1)
11 DCD(COM2) 12 DSR(COM2)
13 RXD(COM2) 14 RTS(COM2)
15 TXD(COM2) 16 CTX(COM2)
17 DTR(COM2) 18
RI(COM2)
19 GND(COM2) 20 GND(COM2)
21 DCD(COM3) 22 DSR(COM3)
23 RXD(COM3) 24 RTS(COM3)
25 TXD(COM3) 26 CTX(COM3)
27 DTR(COM3) 28
RI(COM3)
29 GND(COM3) 30 GND(COM3)
31 DCD(COM4) 32 DSR(COM4)
33 RXD(COM4) 34 RTS(COM4)
35 TXD(COM4) 36 CTX(COM4)
37 DTR(COM4) 38
RI(COM4)
39 GND(COM4) 40 GND(COM4)
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