UC-8112-LX-STK Manual
Hardware Connection Description
3-4
The LED indicator in the lower right corner glows a solid green color
when the cable is properly connected to a 100 Mbps Ethernet network.
The LED will flash on and off when Ethernet packets are being
transmitted or received.
Pin
Signal
1
ETx+
2
ETx-
3
ERx+
4
–
5
–
6
ERx-
7
–
8
–
The LED indicator in the upper right corner glows a solid orange color
when the cable is properly connected to a 10 Mbps Ethernet network.
The LED will flash on and off when Ethernet packets are being
transmitted or received.
Connecting to a Serial Device
Use properly wired serial cables to connect the UC-8112 to serial devices. The serial ports of the UC-8112 use
the 5-pin terminal block. The ports can be configured by software for RS-232, RS-422, or 2-wire RS-485. The
precise pin assignments are shown in the following table:
Terminal Block
RS-232/422/485 Pinouts
Pin RS-232 RS-422 RS-485
1
TXD
TXD+
–
2
RXD
TXD-
–
3
RTS
RXD+
D+
4
CTS
RXD-
D-
5
GND
GND
GND
Inserting the SD and SIM Card
The UC-8112 comes with an SD socket for storage expansion, and a SIM card socket that can be installed with
a SIM card for cellular communication. The SD card/SIM card sockets are located on the lower part of the front
panel. To install them, remove the screw and the protection cover to access the socket, and then plug the SD
card and the SIM card into the sockets directly. Remember to push in on the SD card or SIM card first if you
want to remove them.
The SD card will be mounted at /mnt/sd.
ATTENTION
The UC-8112 does not support SD hot swap and PnP (Plug and Play) functionality. It is necessary to remove
power source first before inserting or removing the SD card.
