Setting Connectors And Jumpers; Com1 And Com2 Port - Protech Systems BA-2501 User Manual

3.4

Setting Connectors and Jumpers

3.4.1

COM1 and COM2 PORT

Port Name: COM1, COM2
Description: COM1 and COM2 Connectors, fixed as RS-232
PIN ASSIGNMENT
1 DCD
2 RX
3 TX
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
9 RI#
COM2: COM2 Connector, selectable as RS-232/422/485.
The pin assignments are as follows:
PIN
RS-232
10 DCD#
11 RX
12 TX
13 DTR#
14 GND
15 DSR#
16 RTS#
17 CTS#
18 RI#
Notes:
1. COM2 is selectable as RS232, RS422, RS485 by BIOS setting.
2. Default setting is RS232. Please see Chapter 5 "Advanced – F81866 Super IO
Configuration" for selection details.
BA-2501 SERIES USER MANUAL
Signal
RS-422 RS-485
TX- RS-485-
TX+ RS-485+
RX+ NC
RX- NC
GND GND
NC NC
NC NC
NC NC
NC NC
Chapter 3 Hardware Configuration
JD09M1
Page: 3-10