W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

pure.box 3 Serial

  • Purebox 2 with serial port

Ready-to-use industrial PC on DIN rail

Use the pure.box 3 with serial interface as the framework for your application. The pre-configured Linux system comes ready with everything you need for network- and web-based applications. The supported database systems MySQL and SQLite permit convenient storage of your application data. Use the serial port to connect terminal devices you want to control and monitor with your application.



  • Network
  • serial combi-interface

Management and connectivity:

  • Configuration
    • Startup using WuTility (three clicks and you’re done)
    • DHCP
    • Web-based management
  • for your application
    • Web server with HTTPS and PHP support
    • MySQL database incl. server interface and SQLite support
    • Run your own C/C++ programs and PHP scripts time- and event controlled
    • Java support on request
    • 750 MB for your application data

Power supply:

  • External
    • Screw terminal
  • Power-over-Ethernet (PoE)
    • Phantom power using data pairs
    • Power over unused wire pairs
  • Buffer capacitors
    • controlled shutdown when disconnecting from the power supply

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data

Connections and displays:

Network:   10/100BaseT Autosensing/Auto-MDIX, RJ45
Galvanic isolation:   RJ45 network connection min. 1500 V
Serial interface:   Combi-interface for RS232/422/485, 50 ... 230,400 Baud
Power supply:   Power-over-Ethernet (PoE) or
DC 24V .. 48V (+/-10%)
Supply connection:   Plug-in screw terminal, 5.08mm spacing
Current consumption:   PoE Class 2 (3.84 - 6.49W) and
typ. 150mA @ 24V DC with external supply
Indicators and buttons:   System status using multi-color LED
Network speed and data transfer
Manual device reset

Hard- and software

Processor and memory:   Marvell 88F6180
NAND Flash: 1 GB
DDR2: 128MB
Operating system:   BusyBox: v1.27.2
Linux, Kernel: v4.4.132
Installed software:   FTP server: ProFTPD v1.3.6
Web server: nginx v1.41.0
SMB server: Samba v3.6.25
PHP interpreter: v7.0.30
MariaDB: v10.1.28
SQLite: v3.18.0

Housing and other data:

Housing:   Plastic housing (105 x 75 x 22mm) with
integrated DIN rail mount
Weight:   approx. 120g
Storage temperature:   -40 ... +70°C
Operating temperature:   0 ... 55°C (adjacent installation)
0 ... 60°C (non-adjacent installation)
Permissible relative humidity:   0 ... 95% relative humidity, non-condensing
Scope of delivery:   1 x pure.box 3 Serial
1 x Quick Guide
1 x Product CD with WuTility management tool and manual


  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 19.00€
    • Power Supply for DIN rail mount, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 29.00€
  • Cable and Connector Accessories

    • PC/PC RS232 Cable, DB9F - DB9F, 2m
    • 11992
    • 9.00€
    • RS232 1:1-Cable, DB9F - DB9M, 2m
    • 11952
    • 9.00€
  • Mechanical Accessories

    • Mounting bracket for wall mounting
    • 58812
    • 9.98€
    • 19" DIN rail
    • 58813
    • 19.00€
  • Software

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.