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20 serial port connector (rs-422/485) – IEI Integration IMBA-9454 v4.02 User Manual

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IMBA-9454G Motherboard

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Figure 4-20: Serial Port Connector (RS-232/422/485) Pinout Locations

PIN DESCRIPTION PIN DESCRIPTION

1 DCD

2 DSR

3 RXD

4 RTS

5 TXD

6 CTX

7 DTR

8 RI

9 GND

10

NC

11 TXD1+

12 TXD1-

13 RXD1+

14 RXD1-

Table 4-22: Serial Port Connector (RS-232/422/485) Pinouts

4.2.20 Serial Port Connector (RS-422/485)

CN Label:

CN1

CN Type:

4-pin header

CN Location:

See Figure 4-21

CN Pinouts:

See Table 4-23

The 4-pin serial port connector provides RS-422/485 serial communications channels that

can be connected to external RS-422/485 serial port devices. The port is shared with the

COM2 port.

See also other documents in the category IEI Integration Hardware: