Moxa Technologies UC-3100 Series User manual

P/N: 1802031000025
*1802031000025*
UC-3100 Series
Quick Installation Guide
Version 4.1, April 2021
Technical Support Contact Information
www.moxa.com/support

2021 Moxa Inc. All rights reserved.

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Overview
Moxa UC-3100 Series computers can be used as smart edge gateways for
data pre-processing and transmission, as well as for other embedded
data-acquisition applications. The UC-3100 Series includes three models,
UC-3101, UC-3111 and UC-3121, each supporting different wireless
options and protocols. Please refer to the datasheet for more information.
Package Checklist
Before installing the UC-3100, verify that the package contains the
following items:
•1 x UC-3100 Arm-based computer
•1 x DIN-rail mounting kit (preinstalled)
•1 x Power jack
•1 x 3-pin terminal block for power
•1 x CBL-4PINDB9F-100: 4-pin pin header to DB9 female console port
cable, 100 cm
•1 x Quick installation guide (printed)
•1 x Warranty card
IMPORTANT: 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-3100 models:
UC-3101

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UC-3111

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UC-3121

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LED Indicators
LED
Name
Status
Function
Notes
SYS
Green
Power is on
Refer to the Function
Button (FN Button)
and LED Indicators
section in the
hardware/software
user manual for more
details.
Red
FN button is pressed
Off
Power is off
Green
(blinking)
The computer is in power
conservation mode
LAN1/
LAN2
Green
10/100 Mbps Ethernet mode
Off
Ethernet port is not active
COM1/
COM2/
CAN1
Orange
Serial/CAN port is
transmitting or receiving data
Off
Serial/CAN port is not active
Wi-Fi
Green
Wi-Fi connection has been
established
Client mode: 3
levels with signal
strength
1 LED is ON: Poor
signal quality
2 LEDs are ON: Good
signal quality
All 3 LEDs are ON:
Excellent signal
quality
AP mode: All
3 LEDs
blinking at the same
time
Off
Wi-Fi interface is not active
LTE
Green
Cellular connection has been
established
Three levels based on
the signal strength
1 LED is ON:
Poor signal quality
2 LEDs are ON:
Good signal quality
All 3 LEDs are ON:
Excellent signal
quality
Off
Cellular interface is not active
Installing the UC-3100
The UC-3100 can be mounted on to a DIN rail or on to a wall. The DIN-rail
mounting kit is attached by default. To order a wall-mounting kit, contact
a Moxa sales representative.

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DIN-rail Mounting
To mount the UC-3100 on to a DIN rail, do the following:
1. Pull down the slider of the DIN-rail bracket located at the back of the
unit
2. Insert the top of the DIN rail into the slot just below the upper hook
of the DIN-rail bracket.
3. Latch the unit firmly on to the DIN rail as shown in the illustrations
below.
4. Once the computer is mounted properly, you will hear a click and the
slider will rebound back into place automatically.
Wall Mounting (optional)
The UC-3100 can also be wall mounted. The wall-mounting kit needs to
be purchased separately. Refer to the datasheet for more information.
1. Fasten the wall-mounting kit to the UC-3100 as shown below:
2. Use two screws to mount the UC-3100 on to a wall.
These two screws are not included in the wall-mounting kit and must
be purchased separately. Refer to the detailed specifications below:
Head Type
: flat
Head Diameter
>5.2 mm
Length
>6 mm
Thread Size
: M3 x 0.5 mm

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Connector Description
Power Connector
Connect the power jack (in the package) to the UC-3100’s DC terminal
block (located on the bottom panel), and then connect the power adapter.
It takes several seconds for the system to boot up. Once the system is
ready, the SYS LED will light up.
Grounding
Grounding and wire routing help limit the effects of noise due to
electromagnetic interference (EMI). There are two ways to connect the
UC-3100 grounding wire to the ground.
1.Through the SG (Shielded Ground, sometimes
called Protected Ground):
The SG contact is the left
-most contact in the 3-pin
power terminal block connector when viewed from the
angle shown here.
When you connect to the SG
contact, the noise will be routed through the PCB and
the PCB copper pillar to the metal chassis.
2.
Through the GS (Grounding Screw):
The GS is located between the console port and the
power connector.
When you connect to the GS wire,
the noise is routed directly from the metal chassis.
NOTE
The grounding wire should have a minimum diameter of
3.31 mm
2
.
Ethernet Port
The 10/100 Mbps Ethernet port uses the RJ45 connector. The pin
assignment of the port is shown below:
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
4
–
5
–
6
Rx-
7
–
8
–
Serial Port
The serial port uses the DB9 male connector. It can be configured by
software for the RS-232, RS-422, or RS-485 mode. The pin assignment of
the port is shown below:

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Pin
RS-232
RS-422
RS-485
1
DCD
TxD-(A)
–
2
RxD
TxD+(A)
–
3
TxD
RxD+(B)
Data+(B)
4
DTR
RxD-(A)
Data-(A)
5
GND
GND
GND
6
DSR
–
–
7
TRS
–
–
8
CTS
–
–
9
–
–
–
CAN Port
The UC-3121 comes with a CAN port which uses the DB9 male connector
and is compatible with the CAN 2.0A/B standard. The pin assignment of
the port is shown below:
Pin
Signal Name
1
–
2
CAN_L
3
CAN_GND
4
–
5
CAN_SHLD
6
GND
7
CAN_H
8
–
9
CAN_V+
SIM Card Socket
The UC-3100 comes with two nano-SIM card sockets for cellular
communication. The nano-SIM card sockets are located on the same side
as the antenna panel. To install the cards, remove the screw and the
protection cover to access the sockets, and then insert the nano-SIM
cards into the sockets directly. You will hear a click when the cards are in
place. The left socket is for SIM 1 and the right socket is for SIM 2. To
remove the cards, push the cards in before releasing them.
RF Connectors
The UC-3100 comes with RF connectors to the following interfaces.

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Wi-Fi
The UC-3111 and UC-3121 models come with a built-in Wi-Fi module. You
must connect the antenna to the RP-SMA connector before you can use
the Wi-Fi function. The W1 and W2 connectors are interfaces to the Wi-Fi
module.
Bluetooth
The UC-3111 and UC-3121 models come with a built-in Bluetooth module.
You must connect the antenna to the RP-SMA connector before you can
use the Bluetooth function. The W1 connector is the interface to the
Bluetooth module.
Cellular
The UC-3100 models come with a built-in cellular module. You must
connect the antenna to the SMA connector before you can use the cellular
function. The C1 and C2 connectors are interfaces to the cellular module.
For additional details refer to the UC-3100 datasheet.
GPS
The UC-3111 and UC-3121 models come with a built-in GPS module. You
must connect the antenna to the SMA connector with the GPS mark
before you can use the GPS function.
SD Card Socket
The UC-3111 and UC-3121 models come with a SD-card socket for
storage expansion. The SD card socket is located next to the Ethernet
port. To install the SD card, remove the screw and the protection cover to
access the socket, and then insert the SD card into the socket. You will
hear a click when the card is in place. To remove the card, push the card
in before releasing it.
Console Port
The console port is an RS-232 port that you can connect to with a 4-pin
pin header cable (available in the package). You can use this port for
debugging or firmware upgrade.
Pin
Signal
1
GND
2
NC
3
RxD
4
TxD
USB
The USB port is a type-A USB 2.0 version port, which can be connected
with a USB storage device or other type-A USB compatible devices.
Real-time Clock
The real-time clock is powered by a lithium battery. We strongly
recommend that you do not replace the lithium battery without the help
of a Moxa support engineer. If you need to change the battery, contact
the Moxa RMA service team.
ATTENTION
There is
a risk of explosion if the battery is replaced with an
incorrect type of battery.

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Accessing the UC-3100 Using a PC
You can use a PC to access the UC-3100 by one of the following methods:
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 console
cable to connect a PC to the UC-3100's serial console port.
B. Using SSH over the network. Refer to the following IP addresses and
login information:
Default IP Address
Netmask
LAN 1
192.168.3.127
255.255.255.0
LAN 2
192.168.4.127
255.255.255.0
Login: moxa
Password: moxa