CyberResearch
®
Motherboards
MXGC
Series
64
©Copyright 2007
CyberResearch, Inc.
Figure
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-28: RS-232 COM
Connector Pinout Locations
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
Data Carrier Direct (DCD)
2
Data Set Ready (DSR)
3
Receive Data (RXD)
4
Request To Send (RTS)
5 Transmit
Data
(TXD) 6 Clear
To
Send
(CTS)
7
Data Terminal Ready (DTR)
8
Ring Indicator (RI)
9 Ground
(GND)
10
Ground
(GND)
Table
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-21: RS-232 COM Connector
Pinouts
4.2.15 Serial Port Connector (COM 2)(RS-232, RS-422 or RS-485)
CN Label:
COM2
CN Type:
14-pin header (2x7)
CN Location:
See
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style in document.
-29
CN Pinouts:
See
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style in document.
-22
The 14-pin serial port connector connects to the COM 2 serial communications channels.
COM 2 is a multi function channel. In default mode COM 2 is an RS-232 serial
communication channel but, with the COM 2 function select jumper, can be configured as
either an RS-422 or RS-485 serial communications channel.
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