Moxa UC-7124, UC-7122 User Manual

P/N: 1802071220012

Version 3.0, January 2019

UC-7122

LED Name

LED Color

LED Function

Green

Power is on and functioning normally

Off

Power is off or power error exists

Green

SD card is detected

Off

No SD card is detected

Green

Serial ports P1-P4 transmitting data

Off

Serial ports P1-P4 not transmitting data

Yellow

Serial ports P1-P4 receiving data

Off

Serial ports P1-P4 not receiving data

The UC-7122/7124 have built-in “ears” for attaching
the
cabinet. We suggest
attach the
heads of the screw
diameter, and the shafts should be less than 3.5 mm
in diameter, as shown by the figure at the right.

LED Indicators

The following LED indicators are located on the top panel of the UC­7122/7124.

UC-7122/7124

Quick Installation Guide

1. Overview

The UC-7122/7124 Series of mini size Arm-based ready-to-run
embedded computers come with the WinCE operating system
preinstalled. The embedded computers have dual 10/100 Mbps Ethernet
ports and 2 or 4 RS-232/422/485 serial ports in an Arm9 box. In addition,
the UC-7122 and UC-7124 have an internal SD socket and one USB 2.0
host port for storage expansion, to provide high performance
communication and unlimited storage in a super compact, palm-size box.
The UC-7122 and UC-7124 are the right solutions for embedded
applications that use a lot of memory, but that must be housed in a small
physical space without sacrificing performance.

UC-7124

2. Package Checklist

Before installing the UC-7122/7124, verify that the package contains the
following items:

 1 UC-7122 or UC-7124
 UC-7122/7124 Quick Installation Guide
 Document & Software CD
 Cross-over Ethernet cable: RJ45 to RJ45, 100 cm
 CBL-4PINDB9F-100 console port cable:

4-pin header to female DB9 cable, 100 cm

 Universal Power Adaptor
 Product Warranty Statement

Optional Accessories

 DK-35A DIN-rail Mounting Kit (35 mm)

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

3. UC-7122/7124 Panel Layout

The UC-7122/7124 come with 2 or 4 software selectable RS-232/422/485
serial ports, one RS-232 console port, two 10/100 Mbps LAN ports, one
internal SD slot, and one USB 2.0 host port. The following figures show
the panel layouts of the UC-7122/7124.

— 1 — — 2 — — 3 —

*1802071220012*

Ready

SD

TxD

P1-P4

RxD

P1-P4

4. Installing the UC-7122/7124

Wall or Cabinet Mounting

embedded computers to a wall or the inside of a

using two screws per ear to

UC-7122/7124 to a wall or cabinet. The

s should be less than 6.0 mm in

DIN-rail Mounting

DIN-rail attachments can be purchased separately to attach the product to
a DIN rail.

5. Connector Description

ATTENTION

This product is intended to
surface, such as a metal panel.

SG: The Shielded Ground (sometimes called
Protected
of the 3
viewed from
wire to an

PIN

Signal

1

ETx+

2

ETx-

3

ERx+

6

ERx-

DB9 Male (UC-7122)

RS­232

RS-485

(4-wire)

RS-485

(2-wire)

1 DCD

TxDA(-)

TxDA(-)

--- 2

RxD

TxDB(+)

TxDB(+)

--- 3

TxD

RxDB(+)

RxDB(+)

DataB(+)

4 DTR

RxDA(-)

RxDA(-)

DataA(-)

5 GND

GND

GND

GND 6

DSR

---

---

--- 7

RTS

---

---

--- 8

CTS

---

---

---

RJ45 (UC-7124)

Pin

RS-232

RS-422

RS-485

1

DSR

---

--- 2 RTS

TxD+

--- 3 GND

GND

GND 4 TxD

TxD-

--- 5 RxD

RxD+

Data+

6

DCD

RxD-

Data-

7

CTS

---

--- 8 DTR

---

---

4

GND

3

NC* 2 RxD

1

TxD

*NC=Not Connected

ATTENTION

Use the CBL

nect
a PC to the
“VT100” terminal type for the connection settings.

Click here for online support:

www.moxa.com/support

The Americas:

[phone] (toll-free: 1-888-669-2872)

Europe:

[phone]

Asia-Pacific:

[phone]

China :

[phone] (toll-free: 800-820-5036)

India:

[phone]

 2019 Moxa Inc., all rights reserved.

Reproduction without per mission is prohibited.

Power Connector

Connect the 12 to 48 VDC LPS or Class 2 power line to the UC­7122/7124’s terminal block. If the power is properly supplied, the Power
LED will light up. The OS is ready when the Ready LED glows a solid
green.

Grounding the UC-7122/7124

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 the power.

be mounted to a well-grounded mounting

Ground) contact is the left most contact

-pin power terminal block connector when
the angle shown here. Connect the SG

appropriate grounded metal surface.

Ethernet Ports

The 10/100 Mbps Ethernet port uses RJ45 connectors.

Serial Ports

The serial ports use DB9 connectors for the UC-7122, and RJ45
connectors for the UC-7124. Each port can be configured by software for
RS-232, RS-422, or RS-485. The pin assignments for the ports are shown
in the following table:

Pin

RS-422

SD Slot

The UC-7122/7124 have internal SD slots for storage expansion. To
install an SD card, first use a screw driver to remove the SD slot cover to
access the slot. The slot is located on the right panel of the UC­7122/7124. Plug the SD card directly into the socket, and then replace the
SD slot cover. When an SD card is inserted, the system will create a
directory called StorageDisk for accessing SD storage. To remove the
SD card from the slot, press the SD card in slightly with your finger, and
then remove your finger to cause the card to spring out partially. You
may then grasp the top of the card with two fingers and pull it out.

USB

The UC-7122/7124 has one USB 2.0 host port located on the top panel
for storage expansion. When a USB storage device is plugged in, the
system will create a directory called StorageDisk for accessing the data
stored on the device. If there is already an SD card in the SD slot, the
system will name the newly created directory “StorageDisk2”.

Console Port

The serial console port is an RS-232 port that uses a 4-pin pin-header
connector. The port is designed for serial console terminals, which are
useful for viewing boot-up messages. Use the CBL-4PINDB9F-100 cable
included with the product to connect a PC to the U-7122/7124’s serial
console port.

Pin Signal

6. Powering on the UC-7122/7124

To power on the UC-7122/7124, connect the “terminal block to power
jack converter” to the UC-7122/7124’s DC terminal block (located on the
left side of the top panel), and then connect the power adaptor. Note that
the Shielded Ground wire should be connected to the right most pin of the
terminal block. Once the system is ready, the Ready LED will light up.

7. Connecting the UC-7122/7124 to a PC

There are two ways to connect the UC-7122/7124 to a PC: (1) through
the serial console port, and (2) by Telnet over the network. The COM
settings for the serial console port are: Baudrate=115200 bps,
Parity=None, Data bits=8, Stop bits =1, Flow Control=None.

-4PINDB9F-100 cable included with the product to con

UC-7122/7124’s serial console port. Remember to choose

To use Telnet, you need to know the UC-7122/7124’s IP address and
netmask. The default LAN settings are shown below. For first-time
configuration, you may find it convenient to use a cross-over Ethernet
cable to connect directly from the PC to the UC-7122/7124.

Default IP Address Netmask

LAN 1 192.168.3.127 255.255.255.0
LAN 2 192.168.4.127 255.255.255.0

Once the UC-7122/7124 is powered on, the Ready LED will light up. Use
the following default login name and password to proceed. The defaults
are:

Login: admin
Password: admin

8. Configuring the Ethernet Interface

Please refer to the UC-7122/7124 User’s Manual for information on how
to configure the Ethernet interface.

Reset

Press the “Reset ” button and hold it in 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

— 4 — — 5 — — 6 —

once the system has rebooted.