Nuvo-6000 Series User’s Manual
Copyright © 2016 Neousys Technology Inc. All Right Reserved.
Page 17 of 100
2.2.9 COM Ports (COM3/COM4/COM5)
Nuvo-6000 provides totally five COM ports for communicating
with external devices. These COM ports are implemented
using industrial-grade ITE8786 Super IO chip (-40 to 85°C)
and provide up to 115200 bps baud rate.
COM3, COM4 and COM5 are 3-wire RS-232 ports share
single DB9 connector. You can directly connect this to one
external device with 3-wire RS-232 interface, or use an
optional 1-to-3 Y-cable to have three DB9 connectors for more
devices. The following table describes the pin definition of the
DB9 connector as well as the Y-cable.
Y-Cable DB9
Pin#
COM3 (A)
COM4 (B)
COM5 (C)
1
2
RX
3
TX
4
5
GND
6
7
8
9
COM3/4/5 DB9
Pin#
COM3
COM4
COM5
1
2
RX
3
TX
4
TX
5
GND
GND
GND
6
RX
7
TX
8
RX
9