MDS Decoders

The controllers are the link between decoders deployed in the field and the ICC PRO software.

The decoder interface connects the 2-wire path and decoders to the controller. Two IRRInet controllers are compatible with the MDS:

  • IRRInet M –maximum of 200 decoders
  • IRRInet ACE –maximum of 400 decoders
  • The IRRInet M & ACE units are remotely managed using ICC PRO software

BROCHURE CONTACT US

Warranty

1 YEARWARRANTY

DECODER INTERFACE UNIT

The interface connects the controller to the 2-wire path and decoders.

A powerful component of the MDS, optimizing power within the low voltage system for Output Decoders, Input Decoders, and also monitoring the vital parameters of the 2-wire system

IRRInet M Interface: 200 Output Decoders

ACE Interface: 200 Output Decoders

expandable to 400 Output Decoders

OUTPUT DECODER

The output decoder is the device which drives the solenoid. Each decoder has a unique address which is used by ICC PRO to communicate with the decoder.

Decoders operate 24 VAC valves or relays and are available in 1, 2, 4 & 6 Output Configurations. Each output decoder will operate one valve

SENSOR INPUT DECODER

The sensor input decoder captures sensor data for the controller. An input decoder is configured to work with either digital or analog sensors.

Each input decoder has one address and monitors one sensor.

Digital Inputs may include Flow Sensors, Rain & Freeze Sensors (Dry Contact/Status Change)

Analog Inputs may include Pressure Transducers.

SURGE PROTECTION DECODER

The surge protection decoder is required to protect the system from lightning strikes, and electrical surges.

For additional information see Section 4.

OUTPUT DECODER

The output decoder is the device which drives the solenoid. Each decoder has a unique address which is used by ICC PRO to communicate with the decoder.

Decoders operate 24 VAC valves or relays and are available in 1, 2, 4 & 6 Output Configurations. Each output decoder will operate one valve

SENSOR INPUT DECODER

 The sensor input decoder captures sensor data for the controller. An input decoder is configured to work with either digital or analog sensors.

Each input decoder has one address and monitors one sensor.

Digital Inputs may include Flow Sensors, Rain & Freeze Sensors (Dry Contact/Status Change)

Analog Inputs may include Pressure Transducers.

SURGE PROTECTION DECODER

The surge protection decoder is required to protect the system from lightning strikes, and electrical surges.

For additional information see Section 4.

Technical Specifications

Mounting: Direct Burial

Wires: Standard direct burial 2-core cable

Power Consumption: Typically 3mA at 26V RMS

Input Voltage: 19V RMS to 32V RMS, 50 or 60Hz, sinusoidal

Solenoid Control:

  • Single – 1 solenoid
  • Dual – 2 solenoids
  • Triple – 3 solenoids
  • Quad – 4 solenoids

Solenoid Output: Full AC input voltage less 1V is continuously applied to the solenoid for
the duration of the on-time

Max. Output:

  • 500mA RMS steady-state per output (typically powers 2 solenoids).
  • 1.2A max for all outputs combined (models: TW/MOT-2/3/4)

Surge Protection: Built-in

Encapsulation: Waterproof

Ambient Temperature: Operation: +5 °C to +50 °C at 500mA output. Max +60 °C at 250mA output.

Storage: -10 °C to +70 °C

Ambient Operating Humidity: 0-100% RH

Signaling System: Modulation of AC waveform at AC zero crossing

Input Power Distortion: Pure sine wave. Avoid any distortion of waveform slope or perturbations at the AC zero crossing point or within +/- ¼ cycle from that point

Decoder Address Range: 1-125 outputs in multiple decoders may be programmed to the same address, but will switch simultaneously. Outputs in multiple decoders may be programmed to unrelated addresses

Approvals:

  • WEEE (European) compliant (Exempt)
  • CE (European) marked and compliant
  • RoHS (European) compliant & lead free
  • C-Tick (Australia)

Decoder Interface Module Specifications:

  • Mounting: Fits in IRRInet ACE controller I/O slot
  • Capacity: 2 decoder lines, each line can drive up to 125 outputs (total of 250
    outputs per module)

Ambient Temperature: Operation: +3 °C to +50 °C

Storage: 0 °C to 70 °C

Ambient Humidity: Operation: 20-80% RH (non-condensing)

Storage: 0-90% RH (non-condensing)