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2.3.2 COM Ports (COM2/ COM3/ COM4)
Implemented
using industrial-grade ITE8786 Super IO chip (-40 to 85°C) and provide
up to 921600 bps baud rate, the second D-Sub male connector (COM2/ 3/ 4) can be
configured in BIOS as single RS-422/ 485 port (COM2) or three 3-wire RS-232 ports
(COM2/COM3/COM4). Please refer to
operation mode. An optional 1-to-3 Y-cable is available to connect three RS-232
devices.
The following table describes the pin definition of the COM port
3-port RS-232 COM2/ 3/ 4
Single port RS-422/ 485
Pin#
COM2
COM3
COM4
Pin#
RS-422
RS-485
1
1
2
RX
2
TxD+
TxD+/
RxD+
3
TX
3
RxD+
4
TX
4
RxD-
5
GND
GND
GND
5
GND
GND
6
RX
6
7
TX
7
8
RX
8
TxD-
TxD-/ RxD-
9
9
COM2 /3/ 4 Pin
1-to-3 Y-cable
36
Summary of Contents for FES93 Series
Page 17: ...1 5 Dimension 1 5 1 Front View 17...
Page 18: ...1 5 2 Top View 18...
Page 19: ...1 5 3 Bottom View 19...
Page 21: ...1 6 2 Wall Mount Bracket WM 300V 21...
Page 22: ...1 6 3 Wall Mount Bracket WM 300H 22...