CyberResearch MXGE Series - Figure 4-20: RS-422;485 Serial Port Connector Location

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CyberResearch

Motherboards MXGE Series

CyberResearch, Inc. 75

25 Business Park Drive P: (203) 483-8815; F: (203) 483-9024

Branford, CT USA www.cyberresearch.com

CN Location:

See Figure 4-20

CN Pinouts:

See Table 4-22

NOTE:

This connector and the RS-422/485 pins on the COM2 connector

cannot be used at the same time. For RS-422/485 serial

communications, either this connector can be used or the pins on the

COM2 connector can be used.

The 4-pin serial port connector connects to the COM 2 RS-422 and RS-485 serial

communications channels. The RS-422/485 only COM2 connector can be used instead of

the 14-pin COM2 connector when RS-422/485 communication protocols are

implemented. To use this connector the COM 2 function select jumper must be configured

in the RS-422/RS-485 serial communications mode.

Figure 4-20: RS-422/485 Serial Port Connector Location

PIN NO. DESCRIPTION

1 TXD+

2 TXD-

3 RXD+

4 RXD-