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3 year warranty

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  • 4.33 (3)
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The 5503-279 board was produced by Woodward as part of the MicroNet Digital Control series as a MicroNet HDVIM (AI/RTD/TC) unit with several standards. This board is considered as a thirty-four-channel board with no potentiometers.



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  • Part Number: 5503-279
  • SKU: 5503279WO
  • Manufacturer: Woodward
  • Series: MicroNet Digital Control

5503-279 Technical Specifications

Board Description High Density Versatile Input Module (HDVIM)
Failure for 13 LED Flashes Dual Port RAM Error
Inputs 4-20 mA, Thermocouple, or RTD
Manual 26166V2, 26166V3, and 26167V1
Number of Channels Thirty-Four
Number of LEDs 2, I/O Fault and Hardware Fault Detection
Potentiometers None according to Woodward 26166V3 Manual
Quantity of Thermocouple Inputs 24

Product Description

High-Density Versatile Input Module (HDVIM) 5503-279 has thirty-four channels which are used for two cold junction inputs and thirty-four analog inputs. Ten of the inputs are RTD inputs with the remaining twenty-four being thermocouple inputs. The thermocouple inputs are divided into two groups of twelve, both will be isolated from the control common and the other group of twelve inputs. There is a specific current range for the thermocouple inputs which is 0-24 mA with a configuration of 4-20 mA. Please note that these first thermocouple inputs have to be configured into pairs. 

This board does have the capability to be used in a redundant and simplex system. When the 5503-279 board is in the simplex system it will be connected through dual high-density sixty conductor analog cables to two 34Ch HDVIM FTM units. The purpose of the two FTMs is to allow for easy access to all of the inputs on the module. 

When this board is using the 4-20 mA inputs it will use a 100-ohm resistor. The inputs of the 5503-279 board will be used with either two-wire self-powered/isolated transducers or loop powered/undergrounds. If these inputs are being used with a non-isolating device it is highly recommended that a loop isolator be used so current paths can be broken. 

The main manuals used with this board are the 26166V3 and 26167V1 manuals. The board being used with these manuals indicate that it can be used in MicroNet Simplex, Plus, and TMR Chassis configurations. Within the 26167V1 manual information can be found in chapter 8.8 with several figures that label configuration examples, wiring, and analog interface wiring. 

Reviews For 5503-279

Internal Review

This board is a High-Density Versatile Input Module. This board can be used with several different input types which are thermocouple and RTD inputs. All information needed for these inputs and their uses are found in the attached manuals. - AX Control Technician

Repair Services For 5503-279

Type Lead Time Price Action
Repair Service 1-2 weeks $2442

Our highly skilled technicians can repair your 5503-279. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
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All Motors: 1 Year
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