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Radio I/O Interface Unit

PRD-IO-404A

Autonomous & Intelligent radio telemetry

Turn radio communications into verified physical actions with the PRD-IO interface unit. Equipped with four relay outputs and four digital inputs, it delivers reliable, event-driven control across your site.

Take a perimeter gate, for example: send a radio text to trigger the motor. Instead of blindly executing the command, the PRD-IO monitors the gate's physical sensors. It then messages your radio back to confirm the exact real-time status—actively opening, fully open, or securely locked.

Configured via an intuitive web app, the PRD-IO ensures your critical operations, from access control to pumps and alarms, are never left to chance.
 

Overview

Core Capabilities

  • Event-Driven Automation: The unit reacts to a variety of triggers, including text messages, input changes, timers, and radio connections.
  • Flexible Outputs: Upon receiving a trigger, the unit can automatically switch relays, send text messages, or set internal variables.
  • Custom Logic: System behaviour is governed by programmable state machines designed in the intuitive gState Machine web app, which allows simulation & testing in a visual environment.
  • Reliable Operation: State machines start running immediately on power-up, and loaded logic configurations survive power cycles.
  • Default Operation: Out-of-the-box functionality via pre-loaded default machines.

Specifications

  • I/O Capacity: Four digital inputs / four relay outputs
  • Power: Powered by external 12VDC or from a mobile radio
  • RS485 MODBUS: Support for external digital and analogue input/outputs
  • Input Wiring: "Versatile, opto-isolated digital inputs, supports volt-free & 5-28V DC input (4 off)"
  • Configuration: "Logic design via gState Machine web app; device configuration via USB"
  • Output wiring: "Form C (SPST) Relay output, rated at 1A 60VDC (4 off) "
  • Radio Support: Hytera MD/HM
  • Dimensions (LxWxH in mm): 112 x 64 x28
  • Power Consumption: <100mA @ 12VDC
  • Material: ABS Plastic with flame Rating: UL94 V-0
  • Mounting: Four countersunk mounting holes and two oval slots for cable ties

Documentation

PDF icon Technical Data Sheet
PDF icon Application Note: Agricultural
PDF icon Application Note: Irrigation
PDF icon Application Note: Perimeter Security

Related

Solution

Access Control

View details →
Solution

Alarm Handling

View details →
Compatibility

Hytera DMR Radios

View details →

Build Systems That Enable Action

Speak to our team

Company

Tel: +44 (0)23 8000 1129

Email: sales@smc-gateway.com

Support: support@smc-gateway.com

 

SMC Gateway Ltd

78 High Beeches,

Banstead,

Surrey

SM7 1NW

United Kingdom

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Products

  • Radio I/O Interface Unit
  • SMC Gateway Cellular
  • SMC Gateway V2
  • SMC Gateway V2 EP

Solutions

  • Access Control
  • Alarm Handling
  • Call Recording
  • GPS Tracking
  • Indoor Location
  • Messaging
  • Paging
  • Speech Dialler
  • Task Management
  • Telephone Interconnect

Compatibility

  • Alarm Receiving Centre (ARC)
  • Audio/visual
  • Building Management System (BMS)
  • CCTV
  • Cellular
  • Database
  • Email
  • Fire alarm systems
  • GPS Tracking
  • Input/output
  • Intercom Systems
  • Intruder Alarm System
  • IOT
  • Network
  • Nurse call/accessible W.C.
  • Paging
  • Push to Talk (PoC)
  • Telephone Systems
  • Two-way radio

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