UC-8100 Series
Quick Installation Guide

Version 5.0, December 2023

Technical Support Contact Informationwww.moxa.com/support

 2023 Moxa Inc. All rights reserved.

P/N: 1802081000015*1802081000015*

Overview
The UC-8100 computing platform is designed for embedded dataacquisition applications. The computer comes with one or two RS232/422/485 serial ports and dual 10/100 Mbps Ethernet LAN ports, aswell as a Mini PCIe socket to support cellular modules. These versatilecommunication capabilities let users efficiently adapt the UC-8100 to avariety of complex communication solutions.

Package Checklist•••••

UC-8100 embedded computer
Console cable
Power jack3-pin terminal block for power (preinstalled)
5-pin terminal block for UART x 2 (preinstalled)

Please notify your sales representative if any of the above items are
missing or damaged.

Panel Layout
The following figures show the panel layouts of the UC-8100.
Top and Bottom Panel
TopBottom-2-Front Panel

LED Indicators
LED Name
USBColor
GreenFunction
Steady On USB device is connected
and working normally
OffUSB device is notconnected.
SDGreen Steady On SD Card inserted andworking normally
OffSD card is not detected
PowerGreen Power is on and the computer isworking normally.
OffPower is off.
LAN1/2
Green Steady On 100 Mbps Ethernet link
(On RJ45Blinking
Data transmittingconnector) Yellow Steady On 10 Mbps Ethernet link
Blinking
Data transmitting
OffEthernet is not connectedGreen Number of glowing LEDs indicates
Wireless
Yellow signal strength
Signal3 (Green + Yellow + Red): Excellent
RedStrength
2 (Yellow + Red): Good
1 (Red): Poor
Off
Wireless module is not detected
Diagnosis Green These 3 LEDs are used for diagnostics
Yellow and are programmable. For additional
Reddetails, refer to the UC-8100 Series
Hardware Manual.

-3-Installing the UC-8100
There are two sliders on the back of the unit for DIN-rail and wall
mounting.
Mounting on a DIN Rail
Pull out the bottom slider, latch the unit onto the DIN rail, and push theslider back in.

Mounting on a Wall
Pull out both the top and bottom
sliders, align the screws with themounting holes, and secure thedevice to the wall by driving thescrews into the wall.

Another method for wall mounting installation is to use an optional wall
mounting kit. Attach the two mounting brackets on the side panel ofthe computer using the screws in the package. Install the computer on
to a wall or cabinet by fastening two screws (M3) for each mounting
bracket. The second set of screws are not included in the package andmust be purchased separately.

Connector Description
Power Connector
Connect the “terminal block to power jack converter” (included in thepackage) to the UC-8100’s DC terminal block (located on the toppanel), and then connect the power adapter. It takes about 30 seconds
for the system to boot up. Once the system is ready, the Power LED
will light up.

-4-Grounding the UC-8100
Grounding and wire routing help limit the effects of noise due toelectromagnetic interference (EMI).
SG:The shielded ground (sometimes calledprotected ground) contact is the top
contact of the 3-pin power terminal
block connector when viewed from theangle shown here. Connect the SG wire
to an appropriate grounded metal
surface.

ATTENTION
The product is intended to be supplied by an UL Listed power
adapter whose output meets SELV/LPS, and is rated 12-24
VDC, minimum 0.5 A, Tma = 85°C (minimum).

ATTENTION
Altitude Requirement
This product and the listed power supply (LPS) adapter(s) usedwith it are UL-certified for operation at 2,000 meters. Although
the product is tested at 5,000 meters, it is not UL-certified forthis altitude. For reliable performance of the product in highaltitude installations of over 2,000 meters (e.g., 5,000 meters),
use a suitable adapter that is tested and certified at the altitude(i.e.,5,000 meters).
Ethernet Ports
The two 10/100 Mbps Ethernet ports (LAN 1 and LAN 2) use RJ45connectors. Refer to the following table for the pin assignments.
Pin1236Signal
ETx+
ETxERx+ERx-

Serial Ports
The two serial ports (P1 and P2) use terminal connectors. Each port canbe configured by software for RS-232, RS-422, or RS-485. Refer to thefollowing table for the pin assignments.
Pin
1
2
3
4
5

RS-232
TXD
RXD
RTS
CTS
GND

RS-422TXD+
TXDRXD+RXDGND

RS-485––D+
DGND-5-SD/SIM Card Slots
The UC-8100 comes with an SD slot for storage expansion and a SIM
card slot for cellular communication. The SD card/SIM card slots arelocated at the lower part of the front panel. To install them, remove thescrew and the cover to access the slots, and then insert the SD card or
the SIM card. You will hear a click when they are inserted correctly. To
remove them, push the cards in and then release them.

Console PortThe console port is a RS-232 port that can be connected with a 4-pin
pin header cable. You may use this port for debugging or firmware
upgrade.
Pin1
2
3
4

Signal
TxD
RxD
NCGND

USBThe USB 2.0 port is located at the lower part of the front panel, andsupports a USB storage device driver.
Real-time Clock
The UC-8100’s real-time clock is powered by a non-chargeable battery.
We strongly recommend that you do not replace the battery without
help from a qualified Moxa support engineer. If you need to change thebattery, contact the Moxa RMA service team.

ATTENTION
There is a risk of explosion if the battery is replaced by anincorrect type of battery.

-6-

Installing the Cellular Module (excludes UC-8112-LX)
The computer comes with a Mini PCIe socket for installing a cellularmodule. The cellular module package includes the following items.

Follow these steps to install the cellular module.
1.

Unfasten the screws on theside panel of the computer andremove the cover.

2.

Find the location of the PCIe
socket.

-7-3.

Remove the plastic plate andthe sticker on both sides of thelarge thermal pad and place itin the socket. Press the thermal
pad down so that it sticks tothe base of the socket.
Place the thermal pad as close
as possible to the holes for thescrews used to secure themodule.

4.

Insert the cellular module into
the socket and tighten thescrews to secure the module tothe socket.

5.

Remove the plastic plate andthe sticker on both side of thesmall thermal pad and stick
the thermal pad on to themodule.

6.

Install the antenna cables.
There are three antenna connectors on the module; two forcellular antennas and one for a GPS antenna. Refer to the figure
for details. As there are only two antenna connector holes on thefront panel of the computer, you can only use two antennas at atime. You may use two cellular antennas, or a cellular antenna
and a GPS antenna. The same antenna cables can be used forboth antenna types.

-8-

7.

Connect one end of theantenna cable to the cellularmodule.

8.

Insert the other end of thecable, with the connector,
through the antenna connector
hole on the front panel of thecomputer. Remove the black
plastic protection cover on theconnector hole before you
insert the antenna wire.

9.

Insert the locking washer
through the connector andpress it against the cover of thecomputer. Then, insert the nut
and tighten it to secure theconnector to the cover.

10.

Connect the antenna to theantenna connector.
Replace the cover of thecomputer.

11.

-9-Connecting the UC-8100 to a PC
A.

Through the serial console port with the following settings:
Baudrate=115200 bps, Parity=None, Data bits=8, Stop bits
=1, Flow Control=None

ATTENTION
Remember to choose the “VT100” terminal type. Use the CBLRJ45F9-150 cable included in the package to connect the PC tothe UC-8100’s serial console port.
B.

By SSH over the network. Refer to the following IP addresses andlogin information.
Default IP Address
192.168.3.127
192.168.4.127

LAN 1LAN 2

Netmask
255.255.255.0
255.255.255.0

Login: moxa
Password: moxa

BSMI Certification for Taiwan

限用物質含有情況標示聲明書
Declaration of the Presence Condition of the Restricted Substances Marking

設備名稱: 嵌入式計算機型號（型式）: UC-8112-LX

Equipment name

Type designation (Type)

限用物質及其化學符號
Restricted substances and its chemical symbols

單元 Unit汞鎘

Lead

Mercury

Cadmium

(Pb)
外殼

六價鉻

鉛(Hg)

(Cd)

多溴聯苯多溴二苯醚Hexavalent Polybrominat Polybrominatedchromium ed biphenyls diphenyl ethers(Cr+6)(PBB)(PBDE)

○

○

○

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○

－○

○

○

○

○

－○

○

○

○

○

－○

○

○

○

○

印刷電路板及其電子組件
電纜/電線/連接器
機械部件金屬
- 10 -

機械部件○○○○○○

非金屬
備考 1. “超出 0.1 wt %”及 “超出 0.01 wt %”係指限用物質之百分比含量超出百分比含量基準值。
Note 1: “Exceeding 0.1 wt %” and “exceeding 0.01 wt %” indicate that thepercentage content of the restricted substance exceeds the reference
percentage value of presence condition.

備考 2. “○”係指該項限用物質之百分比含量未超出百分比含量基準值。
Note 2: “○” indicates that the percentage content of the restricted substance does
not exceed the percentage of reference value of presence.

備考 3. “－” 係指該項限用物質為排除項目。
Note 3: The “−” indicates that the restricted substance corresponds to theexemption.

WARNING
為避免電磁干擾，本產品不應安裝或使用於住宅環境。

製造商資訊
Moxa 四零四科技股份有限公司+886-3-2737575
桃園市八德區和平路 1111 號產品型號：UC-8112-LX- 11 -