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2.2
UNO-2271G Interface
The UNO-2271G two standard COM serial communication ports: COM1, COM2.
The setting can be adjusted in the bios page, the driver will be installed automatically
during OS installation
2.2.1
COM Port Interface (COM 1, COM 2)
For UNO-2271G-E23AE, 2 x RS-232/422/485, DB9, 50~115.2kbps.
2.3
LAN: Ethernet Connector
UNO-2271Gs are equipped with two Gigabit LAN controller.
For the UNO-2271G, the controller chip used is an Realtek RTL8111E Ethernet con-
troller that is fully compliant with IEEE 802.3u 10/100/1000 Base-T
The Ethernet port is a standard RJ-45 jack, and LED indicators are on the front to
show its Link (Green LED) and Active (Green LED) status.
2.4
Power Connector
The UNO-2271G comes with a Phoenix connector that carries 10~30 V
power input, and features reversed wiring protection. Therefore, it will not cause any
damage to the system by reversed wiring of ground line and power line. Refer to
Appendix A.4
2.5
USB Connector
The USB interface supports Plug and Play, which enables you to connect or discon-
nect a device whenever you want, without turning off the computer. The UNO-2271G
provides one USB connector (UNO-2271G-E22AE has extra support for 3 x USB2.0
ports), which gives complete Plug & Play and hot swapping for up to 127 external
devices. The USB interface can be disabled in the system BIOS
For the UNO-2271G-E21AE and UNO-2271G-E23AE, there is one USB port which
complies with USB EHCI, Rev. 3.0 compliant.
For the UNO-2271G-E22AE, there are four USB ports, three ports comply with USB
EHCI, Rev. 2.0 compliant and one port complies with USB EHCI, Rev. 3.0 compliant
Refer to Appendix A.5 for its pin assignments.
7
UNO-2271G User Manual
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