Moxa Technologies UC-8112-LX-STK User manual

UC-8112-LX-STK User’s Manual
First Edition, April 2015
www.moxa.com/product
© 2015 Moxa Inc. All rights reserved.
Reproduction without permission is prohibited.

UC-8112-LX-STK User’s Manual
The software described in this manual is furnished under a license agreement and may be used only in accordance with
the terms of that agreement.
Copyright Notice
Copyright ©2015 Moxa Inc.
All rights reserved.
Reproduction without permission is prohibited.
Trademarks
The MOXA logo is a registered trademark of Moxa Inc.
All other trademarks or registered marks in this manual belong to their respective manufacturers.
Disclaimer
Information in this document is subject to change without notice and does not represent a commitment on the part of
Moxa.
Moxa provides this document as is, without warranty of any kind, either expressed or implied, including, but not limited
to, its particular purpose. Moxa reserves the right to make improvements and/or changes to this manual, or to the
products and/or the programs described in this manual, at any time.
Information provided in this manual is intended to be accurate and reliable. However, Moxa assumes no responsibility for
its use, or for any infringements on the rights of third parties that may result from its use.
This product might include unintentional technical or typographical errors. Changes are periodically made to the
information herein to correct such errors, and these changes are incorporated into new editions of the publication.
Technical Support Contact Information
www.moxa.com/support
Moxa Americas
Toll
-free: 1-888-669-2872
Tel:
[phone]
Fax:
[phone]
Moxa China (Shanghai office)
Toll
-free: 800-820-5036
Tel:
[phone]
Fax:
[phone]
Moxa Europe
Tel:
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Fax: [phone]
Moxa Asia
-Pacific
Tel:
[phone]
Fax: [phone]

Table of Contents
1. Introduction...................................................................................................................................... 1-1
Overview ...........................................................................................................................................1-2
Model Descriptions..............................................................................................................................1-2
Package Checklist ............................................................................................................................... 1-2
Product Features ................................................................................................................................ 1-2
Hardware Specifications ...................................................................................................................... 1-3
Hardware Block Diagram .....................................................................................................................1-4
2. Hardware Introduction...................................................................................................................... 2-1
Appearance........................................................................................................................................2-2
LED Indicators....................................................................................................................................2-3
Default Programmable Button Operations .............................................................................................. 2-4
Reset to Default Button .......................................................................................................................2-4
Real Time Clock..................................................................................................................................2-5
Placement Options ..............................................................................................................................2-5
DIN Rail Mounting .......................................................................................................................2-5
Wall or Cabinet Mounting .............................................................................................................2-5
3. Hardware Connection Description ..................................................................................................... 3-1
Wiring Requirements...........................................................................................................................3-2
Connecting the Power .................................................................................................................. 3-2
Grounding the Unit ......................................................................................................................3-3
Connecting to the Console Port............................................................................................................. 3-3
Connecting to the Network................................................................................................................... 3-3
Connecting to a Serial Device...............................................................................................................3-4
Inserting the SD and SIM Card .............................................................................................................3-4
USB Port............................................................................................................................................3-5
Inserting a Micro SD Card ....................................................................................................................3-5
Installing the Cellular Module ...............................................................................................................3-5
Installing the Wi-Fi Module...................................................................................................................3-7
4. Remote Configuration and Management ........................................................................................... 4-1
Connecting to the UC-8112 via Webmin.................................................................................................4-2
Configuring Webmin............................................................................................................................4-2
Change Language and Theme .......................................................................................................4-3
Webmin Action Logs ....................................................................................................................4-3
Webmin Configuration.................................................................................................................. 4-4
Webmin Users........................................................................................................................... 4-16
Configuring System........................................................................................................................... 4-19
Bootup and Shutdown................................................................................................................ 4-20
Disk and Network Filesystems..................................................................................................... 4-20
Initial System Bootup ................................................................................................................ 4-21
Running Processes..................................................................................................................... 4-22
Scheduled Cron Jobs.................................................................................................................. 4-23
Software Package Updates ......................................................................................................... 4-24
Software Packages .................................................................................................................... 4-25
System Documentation .............................................................................................................. 4-25
System Log .............................................................................................................................. 4-26
Configuring Server............................................................................................................................ 4-27
Apache Webserver..................................................................................................................... 4-27
DHCP Server............................................................................................................................. 4-28
Read User Mail .......................................................................................................................... 4-29
Configuring Others............................................................................................................................ 4-29
Command Shell......................................................................................................................... 4-29
File Manager ............................................................................................................................. 4-29
Configuring Networking ..................................................................................................................... 4-30
Bandwidth Monitoring ................................................................................................................ 4-30
Linux Firewall............................................................................................................................ 4-30
Network Configuration ............................................................................................................... 4-31
Hardware......................................................................................................................................... 4-32
Partitions and Local Disks ........................................................................................................... 4-32
System Time ............................................................................................................................ 4-33
Viewing More Options........................................................................................................................ 4-33
View Module Logs...................................................................................................................... 4-33
System Information................................................................................................................... 4-34
Refresh Modules........................................................................................................................ 4-34
Logout ..................................................................................................................................... 4-34

5. Wireless Module Settings .................................................................................................................. 5-1
Enabling Cellular Module......................................................................................................................5-2
Configuring the Cellular Module..................................................................................................... 5-2
Configuring the Wi-Fi Module ............................................................................................................... 5-2
Bridging the Cellular to Serial Interface .................................................................................................5-4
UDP Server to Serial Device..........................................................................................................5-4
UDP Client to Serial Device ...........................................................................................................5-4
TCP Server to Serial Device ..........................................................................................................5-4
TCP Client to Serial Device ...........................................................................................................5-4
Configuring the IPSec Settings .............................................................................................................5-5
6. Data Acquisition ................................................................................................................................ 6-1
Acquiring Data ................................................................................................................................... 6-2
A. Regulatory Approval Statements....................................................................................................... A-1

1
1. Introduction
Moxa’s UC-8112 Series Starter Kit is an ideal hardware and software package for system evaluation.
Containing a UC-8100 computer, optional cellular and Wi-Fi modules, and various software packages, this
compact Starter Kit helps users establish their system architecture in no time.
The following topics are covered in this chapter:

Overview

Model Descriptions

Package Checklist

Product Features

Hardware Specifications

Hardware Block Diagram

UC-8112-LX-STK Manual Introduction
1-2
Overview
The UC-8112-LX Starter Kit offers a cellular or Wi-Fi module that users can easily install to establish wireless
communication between the UC-8100 and the peripheral devices. In addition, system integrators can easily
evaluate the result of remote management for some specific industrial tasks, such as data acquisition, and
system integration.
Model Descriptions
The UC-8112-LX-STK series includes the following models:
•UC-8112 Starter Kit with LTE-EU: Compatible with LTE, HSPA, GPRS/GSM, GPS
•UC-8112 Starter Kit with LTE-US: Compatible with LTE, HSPA, GPRS/GSM, GPS
•UC-8112 Starter Kit with Wi-Fi: Compatible with IEEE 802.11b/g/n
•UC-8112 Starter Kit
Package Checklist
Before installing the UC-8112, verify that the package contains the following options:
UC-8112-LX Computer Kit
•UC-8112-LX computer x 1
•Console cable x 1
•GPS antenna x 1
•Cellular antenna x 1
•Wi-Fi antenna x 1
•DIN rail mounting kit x 1
•1 GB SD x 1
•Power jack x 1
•Power adapter x 1
Wi-Fi module kit
•Wi-Fi module x 1
•Wi-Fi antenna cable x 1
Cellular Module Kit
•Cellular module x 1
•Cellular antenna cable x 1
NOTE: Notify your sales representative if any of the above options are missing or damaged.
Product Features
•ARMv7 Cortex-A8 300/600/1000 MHz processor
•Dual auto-sensing 10/100 Mbps Ethernet ports
•SD socket for storage expansion and OS installation
•Rich programmable LEDs and a programmable button for easy installation and maintenance
•Mini PCIe socket for cellular module
•Debian ARM 7 open platform
•Cybersecurity

UC-8112-LX-STK Manual Introduction
1-3
Hardware Specifications
Computer
CPU:
ARMv7 Cortex-A8 300/600/1000 MHz
USB:
USB 2.0 host x 1 (type A connector)
DRAM:
256 MB DDR3 SDRAM (512 MB by request)
OS (pre
-installed): Debian ARM 7 (Kernel 3.2)
Storage
Storage Expansion:
• SDHC/SDXC socket for storing OS and storage expansion
• 1 GB SD card with OS pre
-installed
• MicroSD socket for storage expansion (UC
-8112-LX/UC-8112-T-LX only)
• 2 GB MicroSD cards with OS pre
-installed (UC-8112-LX/UC-8112-T-LX only)
Ethernet Interface
LAN:
2 auto-sensing 10/100 Mbps ports (RJ45)
Magnetic Isolation Protection:
1.5 kV built-in
Serial Interface
Serial Standards: 1 or 2 RS-232/422/485 ports, software-selectable (5-pin terminal block connector)
Console Port:
RS-232 (TxD, RxD, GND), 4-pin pin header output (115200, n, 8, 1)
Serial Communication Parameters
Data B
its: 5, 6, 7, 8
Stop Bits:
1, 1.5, 2
Parity:
None, Even, Odd, Space, Mark
Flow Control:
XON/XOFF, ADDC® (automatic data direction control) for RS-485
Baudrate:
Max. 921600 bps
Serial Signals
RS
-232: TxD, RxD, RTS, CTS, GND
RS
-422: TxD+, TxD-, RxD+, RxD-, GND
RS
-485-4w: TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w: Data+, Data-, GND
LEDs
System:
Power x 1, USB x 1, SD x 1, signal strength x 3 (UC-8112/8162/8132 with cellular module)
LAN:
10M/100M on connector
Programmable:
Diagnosis x 3
Switches and Buttons
Push Button: Initially configured to return a diagnostic report, and to reset the device to factory defaults
Physical Characteristics
Housing:
Polycarbonate plastic
Weight:
224 g
Dimensions:
101 x 27 x 128 mm (3.98 x 1.06 x 5.04 in)
Mo
unting: DIN rail, wall (with optional kit)
Environmental Limits
Operating Temperature:
Standard Models:
-10 to 60°C (14 to 140°F)
Wide Temp. Models:
-40 to 75°C (-40 to 167°F)
Storage Temperature:
-40 to 80°C (-40 to 176°F)
Ambient Relative Humidity
:5 to 95% (non-condensing)
Anti
-Vibration: 2 Grms @ IEC 60068-2-64, random wave, 5-
500 Hz, 1 hr per axis (without any USB devices
attached)
Anti
-Shock: 20 g @ IEC 60068-2-27, half sine wave, 30 ms

UC-8112-LX-STK Manual Introduction
1-4
Power Requirements
Input Voltage:
12 to 24 VDC (3-pin terminal block, V+, V-, SG)
Power Consumption:
5.4 W (without cellular module and external USB device attached)
• 450 mA @ 12 VDC
• 225 mA @ 24 VDC
Standards and Certifications
Safety: UL 60950-1, EN 60950-1, CCC (GB9254, GB17625.1)
EMC:
EN55022 Class B, EN 55024-4-2, EN 55024-4-3, EN 55024-4-4, FCC Part 15 Subpart B Class A
Green Product:
RoHS, CRoHS, WEEE
Reliability
Alert Tools:
Built-in RTC (real-time clock)
Automatic Reboot Trigger:
Built-in WDT (watchdog timer)
Warranty
Warranty Peri
od: 5 years
Details:
See www.moxa.com/warranty
Hardware Block Diagram

2
2. Hardware Introduction
The UC-8112 embedded computers are compact and rugged, making them suitable for industrial applications.
The LED indicators allow users to monitor performance and identify trouble spots quickly, and the multiple
ports can be used to connect a variety of devices. The UC-8112 comes with a reliable and stable hardware
platform that lets you devote the bulk of your time to application development. In this chapter, we provide
basic information about the embedded computer’s hardware and its various components.
The following topics are covered in this chapter:

Appearance

LED Indicators

Default Programmable Button Operations

Reset to Default Button

Real Time Clock

Placement Options
DIN Rail Mounting
Wall or Cabinet Mounting

UC-8112-LX-STK Manual Hardware Introduction
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Appearance
Front View
Top & Bottom Views
Top Bottom

UC-8112-LX-STK Manual Hardware Introduction
2-3
Dimensions
units: mm (in)
LED Indicators
Refer to the following table for information about each LED.
LED Name Color Function
USB Green Steady On USB device is connected and working
normally
Off USB device is not connected.
SD Green Steady On SD Card inserted and working normally
Off SD Card is not detected
Power Green Power is on and the computer is working normally.
Off Power is off.
LAN1/2 (On
RJ45
connector)
Green Steady On 100 Mbps Ethernet link
Blinking
Data transmitting
Yellow Steady On 10 Mbps Ethernet link
Blinking Data transmitting
Off Ethernet is not connected
Wireless
Signal
Strength
Green
Yellow
Red
Number of glowing LEDs indicates signal strength
3 (Green + Yellow + Red): Excellent
2 (Yellow + Red) : Good
1 (Red) : Poor
Off Wireless module not detected
Diagnosis Green
Yellow
Red
These 3 LEDs can be programmed by the user
(Refer to Chapter 3 in the Hardware Manual for details.)

UC-8112-LX-STK Manual Hardware Introduction
2-4
Default Operations for Programmable LEDs
Status of the 3 LEDs
Green LED Yellow LED Red LED Status Description
Off Off On SD Card Error – Can’t read from or write to the SD card
Off
On
On
WAN Ethernet Error – WAN Ethernet controller malfunction
On Off On LAN Ethernet Error – LAN Ethernet controller malfunction
Off Blinking On IP Address Error – IP Address conflict; re-configure the UC-8110’s LAN
IP address to solve this problem
Off Off Blinking Power-Off Warning
Power off may result in damage to the UC-8110 due to
•Updating firmware
•Saving configuration
•Initialization process
On On On RS-232 Interface Error
Blinking Blinking Blinking Proceeding with Self Diagnosis
Blinking Off Off Automatic Pairing (Button)
•Press and hold the button for 2 seconds to enable automatic
pairing mode.
•Simply click the button “Smart Connect” on the software utility
(Moxa Nexus for Windows, iOS, or Android) on any handheld
device to seamlessly access this device via the Moxa Cloud
Solution.
•Automatic pairing mode will be disabled after X seconds. (X is
configurable, default is 30.)
•When automatic pairing mode is enabled, the green “Diagnosis”
LED will keep blinking.
•Any successful pairing will disable the automatic pairing mode
immediately.
Off Blinking Off Automatic Pairing (QR-Code)
•Scanning the QR-Code on the UC-8110 from the software utility on
a handheld device will enable automatic pairing mode
•Refer to “Automatic Pairing (Button)”
•The only exception is the Yellow “Diagnosis” LED, which will keep
blinking when automatic pairing mode is enabled.
Off On Off Reset to Factory Default
Reset to Default Button
Press and hold the Reset Button continuously for at least 5 seconds to load the factory default
configuration. After the factory default configuration has been loaded, the system will reboot automatically.
The Ready LED will blink on and off for the first 5 seconds, and then maintain a steady glow once the system
has rebooted.
We recommend that you only use this function if the software is not working properly and you want to load
factory default settings. The Reset to Default functionality is not designed to hard reboot the UC-8112.
ATTENTION
Reset to Default preserves user
’s data
The
Reset to Default function will NOT format the user directory and erase the user’s data. Using the Res
et
to default function will
only load the configuration file. The rest of the user’
s data stored in the Flash ROM will
remain intact.

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2-5
Real Time Clock
The UC-8112’s real time clock is powered by a lithium battery. We strongly recommend that you do not replace
the lithium battery without help from a qualified Moxa support engineer. If you need to change the battery,
contact the Moxa RMA service team.
WARNING
There is a risk of explosion if the battery is replaced by an incorr
ect type.
Placement Options
There are two sliders on the back of the unit for DIN rail and wall mounting.
DIN Rail Mounting
Pull out the bottom slider, latch the unit onto the DIN rail, and push the slider back in.
Wall or Cabinet Mounting
Pull out both the top and bottom sliders and align the screws accordingly.

UC-8112-LX-STK Manual Hardware Introduction
2-6
Another method for wall mounting installation is to use the optional wall mounting kit. Attach two mounting
brackets on the side panel of the computer, and fasten with screws. Install the computer on a wall or cabinet
by fastening two screws for each bracket.
NOTE
Before tightening the screws into the wall, make sure the screw head and shank size are suitable by inserting
the screw into one of the keyhole
-shaped apertures of the wall mounting plates.

3
3. Hardware Connection Description
This chapter describes how to connect the UC-8112 to a network and various devices for first time testing
purposes.
The following topics are covered in this chapter:

Wiring Requirements
Connecting the Power
Grounding the Unit

Connecting to the Console Port

Connecting to the Network

Connecting to a Serial Device

Inserting the SD and SIM Card

USB Port

Inserting a Micro SD Card

Installing the Cellular Module

Installing the Wi-Fi Module

UC-8112-LX-STK Manual Hardware Connection Description
3-2
Wiring Requirements
In this section, we describe how to connect various devices to the embedded computer. You should heed the
following common safety precautions before proceeding with the installation of any electronic device:
•Use separate paths to route wiring for power and devices. If power wiring and device wiring paths must
cross, make sure the wires are perpendicular at the intersection point.
NOTE
Do not run signal or communication wiring and power wiring in the same wire conduit. To avoid interference,
wires with different signal characteristics should be routed separately.
•You can use the type of signal transmitted through a wire to determine which wires should be kept separate.
The rule of thumb is that wiring that shares similar electrical characteristics can be bundled together.
•Keep input wiring and output wiring separate.
•When necessary, it is strongly advised that you label wiring to all devices in the system.
ATTENTION
Safety F
irst!
Be sure to disconnect the power cord before doing installations and/or wiring.
Electrical Current
Caution!
Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes
dictating the maximum current allowable
for each wire size.
If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your
equipment.
Temperature Caution!
Be
careful when handling the unit. When the unit is plugged in, the internal components generate h
eat, and
consequently the
outer casing may feel hot to the touch.
Connecting the Power
The UC-8112 has a 3-pin terminal block for a 12 to 24 VDC power input.
The following figure shows how the power input interface connects to external power sources. If the power is
properly supplied, the Power LED will light up. The Ready LED will glow a solid green color when the operating
system is ready (it may take 30 to 60 seconds for the operating system to boot up).
Terminal Block
ATTENTION
The power for this product is intended to be supplied by a Listed Pow
er Supply Unit that is rated to deliver
12
to
24 VDC at a minimum of 450 mA @ 12 VDC, and 225 mA @ 24 VDC.

UC-8112-LX-STK Manual Hardware Connection Description
3-3
Grounding the Unit
Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the
ground connection from the ground screw to the grounding surface prior to connecting devices.
ATTENTION
This product is intended to be mounted to a well
-grounded mounting surface, such as a metal panel.
SG: The Shielded Ground (sometimes called Protected Ground) contact is the bottom contact of the 3-pin
power terminal block connector when viewed from the angle shown here. Connect the SG wire to an
appropriate grounded metal surface.
ATTENTION
A shielded power cor
d is required to meet FCC emission limits and also to prevent interference with
nearby
radio and television reception. It is essential that only the supplied power cord b
e used.
You are cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void your authority to operate the equipment.
Connecting to the Console Port
The UC-8112’s console port is a 4-pin pin-header RS-232 port located on the top panel of the case. It is
designed for serial console terminals, which are useful for identifying the boot up message, or for debugging
when the system cannot boot up.
Serial Console Port & Pinouts Serial Console Cable
Pin
Signal
1
Tx
D
2
RxD
3
NC
4
GND
Connecting to the Network
Connect one end of the Ethernet cable to one of the UC-8112’s 10/100M Ethernet ports (8-pin RJ45) and the
other end of the cable to the Ethernet network. If the cable is properly connected, the UC-8112 will indicate a
valid connection to the Ethernet in the following ways:

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 ne
twork.
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.

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3-5
USB Port
The UC-8112 provides 1 USB 2.0 full speed port (OHCI), type A connector, which supports a keyboard or mouse,
as well as an external flash disk for storing large amounts of data.
Inserting a Micro SD Card
The UC-8112 comes with a micro SD card socket for storage expansion. Follow these steps:
1. Remove the screws on the side panel, and take off the cover.
2. Insert the micro SD card into the socket. Make sure you insert the card in the correct direction.
3. Replace the cover to complete the installation.
Installing the Cellular Module
The UC-8112 provides a PCIe socket for installing a cellular socket. Follow these steps:
1. Remove the screws on the side panel, and take off the cover.
2. Find the location of the PCIe socket. Insert the cellular module into the socket, and then tighten the screws
to fasten the socket.

UC-8112-LX-STK Manual Hardware Connection Description
3-6
3. Next, you need to install the antenna cable. There are two antenna connectors on the cellular module.
Connect the cable to either connector.
4. Plug the other end of the cable into the connector on the front panel of the UC-8112. Remove the black
plastic cover first.
5. Install the connector; place the locking washer first, and then tighten the nut.
6. Connect the antenna to the connector.