Mini RISC-based ready-to-run industrial computer with 1 serial port, LAN, SD, μClinux

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Features and BenefitsMoxa UC-8100 Wireless Computer Product Review

  • MOXA ART ARM9 32-bit 192 MHz processor
  • 16 MB RAM and 8 MB Flash ROM
  • One 10/100 Mbps Ethernet port for network redundancy
  • One software-selectable RS-232/422/485 port
  • Select any baudrate from 50 bps to 921.6 Kbps
  • SD socket for storage expansion
  • Built-in real-time clock (RTC), buzzer, watchdog timer (WDT)
  • Pre-installed μClinux Kernel 2.6 platform
  • -40 to 75°C wide temperature model available
  • DIN-Rail or wall mountable
  • Robust fanless design



The UC-7101 may be Moxa's smallest RISC-based communication platform for embedded applications, but it is also one of the most powerful. The computer comes with one RS-232/422/485 serial port and a 10/100 Mbps Ethernet LAN port to provide users with a versatile industrial communication and embedded computing platform.


The UC-7101 embedded computer uses the MOXA ART ARM9 192 MHz RISC CPU, which provides a powerful computing engine and communication functions, but without generating too much heat. The built-in 8 MB NOR Flash ROM and 16 MB SDRAM give users plenty of storage capacity, and the SD socket provides greater flexibility for running a variety of applications. The LAN port built into the ARM9 CPU allows the UC-7101 computer to be used as a communication platform for basic data acquisition and protocol conversion applications, and the computer's RS-232/422/485 serial port allows you to connect one serial device for data acquisition applications.


The UC-7101 comes with the μClinux operating system pre-installed. Software written for desktop PCs is easily ported to the UC-7101 computer with a GNU cross complier, so that you will not need to spend time modifying existing software code.


A wide temperature model of the UC-7101 that supports an operating temperature range of -40 to 75°C is also available, making it suitable for any harsh environment. These features make the UC-7101 embedded computer an ideal solution for a variety of industrial automation applications.


Typical Application


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Hardware Specifications
OS (pre-installed) μClinux or Linux
Flash 8 MB onboard
Storage Expansion SD slot
Ethernet Interface
LAN Auto-sensing 10/100 Mbps (RJ45), 1 port
Magnetic Isolation Protection 1.5 kV built-in
Serial Interface
Serial Standards RS-232/422/485 software-selectable (DB9 male), 1 port
ESD Protection 15 kV ESD for all signals
Console Port RS-232 (TxD, RxD, GND), 4-pin pin header output
Serial Communication Parameters
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control RTS/CTS, XON/XOFF, ADDC® (automatic data direction control) for RS-485
Baudrate 50 bps to 921.6 kbps (supports non-standard baudrates; see user's manual for details)
Serial Signals
RS-422 TxD+, TxD-, RxD+, RxD-, GND
RS-485-4w TxD+, TxD-, RxD+, RxD-, GND
RS-485-2w Data+, Data-, GND
System Ready
LAN LED located on the RJ45 connector,
10M/Link x 1, 100M/Link x 1
Serial TxD x 1, RxD x 1
Physical Characteristics
Housing Aluminum (1 mm)
Weight 130 g
Dimensions 67 x 22 x 100.4 mm (2.64 x 0.87 x 3.95 in)
Mounting DIN rail, wall
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 Standard Models: -20 to 80°C (-4 to 176°F)
Wide Temp. Models: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Anti-Vibration 1 g @ IEC-68-2-6, sine wave (resonance search), 5-500 Hz, 1 Oct/min, 1 cycle, 13 min 17 sec per axis
Power Requirements
Input Voltage 12 to 48 VDC
Power Consumption 4.5 W
• 170 mA @ 24 VDC
• 340 mA @ 12 VDC
Standards and Certifications
Safety UL 60950, CSA-C22.2 No. 60950-1, EN 60950-1
EMC EN 55022 Class A, EN 61000-3-2 Class A, EN 61000-3-3, EN 55024, FCC Part 15 Subpart B Class A
Green Product RoHS, CRoHS, WEEE
Alert Tools Built-in buzzer and RTC (real-time clock)
Automatic Reboot Trigger Built-in WDT (watchdog timer)
Warranty Period 5 years
Details See www.moxa.com/warranty
Note These hardware specifications describe the embedded computer unit itself, but not its official accessories. In particular, the wide temperature specification does not apply to accessories such as power adapters and cables.
Software Specifications
Kernel Version 2.6.19
File System JFFS2 (on-board flash)
System Utilities msh, busybox, tinylogin, telnet, ftp
pppd dial in/out over serial port daemon & PPPoE
snmpd snmpd agent daemon
telnetd Telnet Server daemon
inetd TCP server manager program
ftpd FTP server daemon
boa Web server daemon
Application Development Software • Moxa Linux API Library for device control
• Linux Tool Chain:
• Arm-elf-gcc: C/C++ PC Cross Compiler
• μClibc: POSIX Standard Library

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Available Models

  Model No. Description
UC-7101-LX 1 serial port, LAN μClinux OS(Operating Temperature: -10 to 60°C)
UC-7101-T-LX Mini RISC-based embedded computer with 1 serial port, LAN μClinux OS(Operating Temperature: -40 to 75°C)

Optional Accessories

RCore Software
  Model No. Description
Mass Configuration Tool A time-saving tool that helps users simultaneously deploy many tasks to Moxa’s embedded computers (available free)
MDM API Moxa Device Manager Application Program Interface (available free)

Professional Design Service


Moxa’s customization service for industrial computing products is based on the Professional Design Service (PDS) concept, which aims to provide customers with tailor-made solutions. Industrial applications often have specific requirements, and specialized solutions are often needed. With more than 20 years of experience in the industrial networking and automation field, Moxa can offer professional, customized products and services that are ideal for your own industrial applications.

Customer Benefits
• Comprehensive consideration of platform system design gives optimal solutions, and guarantees that proposals address customer needs
• Our sophisticated customization procedures are built on meticulous production and quality control processes
•  A full-time technical support team gives customers quick and reliable solutions