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Installation
•
23
COM4 RS-232/422/485 Serial Port Connectors (14-pins Pin-Header): CN14
Pin #
Assignment
Pin #
Assignment
1 DCD
2 RXD
3 TXD
4 DTR
5 Ground
6 DSR
7 RTS
8 CTS
9 RI
10
Ground
11 TXD+
12 TXD-
13 RXD+
14 RXD-
y
COM4 Figure:
Note: How to connect a RS485 device with the COM port ribbon cable?
Our Industrial Board encloses a COM port ribbon cable for internal connection.
RS422/485 device must connect to downside D-Sub with 5-pin cable and signal
indication as below.
1
13
14
2
5
9
1
6
RS-422/485:
1: TXD-
2: TXD+
3: RXD-
4: RXD+
5: GND
For RS-422/485 Connector
For RS-232 Connector
Summary of Contents for M-855 Series
Page 1: ...M 855 Industrial Motherboard User s Manual Recycled Paper 60070024IHA00 ...
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