Power supply requirements

An external power supply is required and ships with the field processor:

  • 6 VDC – 28 VDC (rated for extended temperature range)
  • Power consumption 4W (idle), 6W (loaded)

Important: Transmax recommends that external power supply and serial port protection be used to avoid damage caused by transient electrical spikes. Contact Transmax for options.

Physical specifications

Dimensions: 210 mm W x 170 mm D x 110 mm H
Weight 1.1kg
Flexible mounting options include:

  • DIN mounting bracket
  • flange mounting

Technical specifications

x86, 500MHz processor
256MB onboard DDR RAM
Up to two Compact Flash
Serial Site Identifier
Expandable with up to 2 additional PC104+ Stacks
Fanless operation
Sealed Case (IP Rating – IP51)


1 x DB9-M console port
1 x DB9-M serial site identifier port
8 x DB9-M serial I/O ports (for field devices, TIA/EIA- 232/422)
2 x RJ45 network interface/LAN ports
2 x USB ports via a DB15-F connector

Contact Transmax if a USB connection is required as USB is not supported by STREAMS.

Operational specifications

Operating temperature (-10o to +75oC) computer suitable for roadside and mobile applications

Ingress Protection: IP51
MTBF is approximately 100,000 hrs

Management and communications

Secure network connection to host via TCP/IP or PPP
Gateway to other network devices including field processors via secure TCP/IP or PPP
Local serial console management port
Secure Remote Management

Supported field devices

  • Variable Speed Limit Sign (VSL)
  • Variable Message Sign (VMS)
  • Ramp Signal Controller (RSC)
  • Changeable Message Sign (CMS)
  • Intelligent Vehicle Detector
  • Lane Use Management (LUM) devices
  • Intersection Controller

For a more complete list, including specific supplier supported devices, please contact Transmax on 07 3355 8700 or see our supported devices and interfaces brochure

Standard package contents

  • Field Processor
  • DIN rail-mounted bracket
  • Serial site identifier
  • External power supply
  • 240V AC mains supply power cable (AS/NZS 3112 10A
  • 3 pin plug, flat earth)
  • DC supply power cable (with CPC plug)
  • Cat 5E ethernet cable RJ45/RJ45

DIO support

Onboard DIO support is not available on the FP.MIDI-10 Field Processor. The Site Identifier supports Door Open DIO signalling and Temperature Sensor. For other DIO requirements, Transmax recommends an external PLC be used. For more information, please contact Transmax.

STREAMS support

Supported in STREAMS versions:

  • v2008.1 & onwards


1 year (return to base). Optional extended warranty periods of 1, 2, 3, or 4 years are also available on request.

Transmax MINI-6 & MIDI-10 Field Processor Longevity Statement

Transmax’s supplier of field processors (FPs) has advised that an end-of-life (EOL) announcement for a component in the MINI-6 and MIDI-10 FPs has been revised as follows:

Our supplier advises that the date for last orders of the MINI-6 and MIDI-10 FP’s is Q2 2019.

Likewise, the last shipping date from our supplier is Q4 2019.

As a result of this announcement, a replacement for these models is being investigated and:

  • Transmax expects the production version will be available well in advance of any EOL date for the current models
  • More information about the final specification will be available towards the end of the development cycle

Transmax’s MINI-6 and MIDI-10 FPs were first introduced in 2009 and have been in continuous use since then with an estimated 2,500 MINI-6 and 300 MIDI-10 FPs in full service in the field throughout Australia.

Transmax will continue to supply the current MINI-6 and MIDI-10 units until a replacement model is available. Transmax will also continue to hold stocks of these FPs to service customer warranty claims for as long as possible.

For a more complete list, including specific supplier supported devices, please contact Transmax on 07 3355 8700 or see our supported devices and interfaces brochure.


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