STm.5 - Control unit

The intelligent solution for every node

Green light for universal use

  • Supply voltage 230 V / 50 Hz more on request
  • Supply voltage of the outdoor system 230 V / 50 Hz or 40 V / 50 Hz
  • monitored signal outputs 24
  • Digital non-monitored outputs 8 - expandable
  • Inputs and detectors 24 - expandable
Product Details

Modular & powerful Control units

Control units of the STm.5 Series are technically and economically excellent for every traffic junction. All devices of the STm.The 5-family are of modular design and have several processors working independently of each other.

This is how we guarantee maximum performance, reliability and functional safety. The STm offers this.5-Series an integration of all common interfaces and control methods. So free travel for a universal use.


Integrated control methods

  • Time-dependent signal program selection
  • Traffic-dependent signal program selection
  • Fixed time control
  • Full-traffic-dependent control
  • Request Control
  • Phase-oriented control
  • Signal group-oriented control

Direct-supply control logics

  • LISA+

Signal protection

  • Construction in fail-safe two-channel microprocessor technology
  • Monitoring against the occurrence of dangerous signaling states
  • Monitoring of all lamps for failure
  • Check for compliance with the intermediate and transitional periods


Structure of the controller

  • 19-inch technology in the swivel frame, fully electronic connection of the assemblies


Standards and Guidelines

  • VDE 0832/EN 50556
  • DIN EN 12675
  • EN 61508 (SIL 3)

Partial node

  • Division of the transport node into up to four independent sub-nodes
  • Time-dependent and fault-related shutdown of partial nodes


Signal output modules

  • Electronic switching elements
  • Galvanic isolation of measuring circuits
  • It is possible to arrange the measuring circuits in return or return conductors
  • One main signal and two repeaters per output module
  • Several output modules can be connected together to form a signal group


Central connection

  • Remote diagnosis
  • Measurement data acquisition
  • Supply



Connection to traffic computer

  • Leased line
  • GSM/GPRS/UMTS connection
  • DSL/fiber optic connection
Successful projects of the last few years