Specifications
Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 12 of 83
Version 2 Status Released
Last Editor Harry Smyth Date 09/12/2014
Document Name Configuration Control Document No. 667/CC/45950/000
Copyright © Mobility 2014. All Rights Reserved. Mobility is a division of Siemens Plc
2 ST950 FAMILY OF CONTROLLERS SYSTEM OVERVIEW
The Siemens ST950 Controller family is the latest in a long line of highly integrated
traffic controllers.
The ST950 family of controllers can be supplied either in a single-door outer case with
a 6U logic rack and equipment mounting frame or as a free-standing logic rack housing
the power supply, CPU Card and Lamp Switch cards.
The main features of the ST950 family are:
Conforms to the UK Highways Agency specification TR2500
32 phases, 32 stages.
8 streams.
8 maximum green sets.
8 hurry calls which are in priority order.
8 uni-directional detector loop units.
Multi-mode operation with stage ripple change facility for improved intersection
capacity.
Fully integrated Light Rapid Transport (LRT) mode for use at Tram / Road
intersections.
Fully configurable lamp sequences for worldwide application.
Fully integral and configurable lamp monitoring of both incandescent and LED signals.
Flexible part-time and start-up modes, allowing any stream to be sent in and out of
part-time mode without affecting any others.
Cableless linking (Plan) facility with sophisticated plan timetables and 32 plan groups.
Event timetable which supports actions based on 32 independent events with easy
programming.
Time system with full date details – automatically time synchronised to central system
where the controller linked to Siemens UTMC central system.
Date stamped rolling log providing detailed history of events and faults, coupled with
improved presentation to aid recognition of entries.
Uncomplicated web browser user interface capable of multi-language support
Support for up to 240 I/O lines via I/O cards and Intelligent Detector Backplanes
RS232 and USB interfaces for handset, modem and GPS
The essential differences between the ST900 and the new ST950 family of controllers
are: