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1 db-9p com port connector, Db-9p com port connector, Table 1-6 – ADLINK MXE-200i User Manual

Page 27: Db-9p com port pin assignment, Figure 1-7, Db-9p com port

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Introduction

13

MXE-200

1.7.1

DB-9P COM Port Connector

2 serial ports connect via DB-9P connectors.

COM1 supports RS-232, and the other selectively supports RS-
232/ RS-422/ RS-485 mode by BIOS setting.

Figure 1-7: DB-9P COM Port

Table 1-6: DB-9P COM Port Pin Assignment

Pin

Signal

RS-232

RS-422

RS-485

1

N/C

TXD422-

485DATA-

2

RXD

TXD422+

485DATA+

3

TXD

RXD422+

N/C

4

N/C

RXD422-

N/C

5

GND

N/C

N/C

6

N/C

N/C

N/C

7

RTS#

N/C

N/C

8

CTS#

N/C

N/C

9

N/C

N/C

N/C

1

5

6

9

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