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Telephone Mini-Concentrator

The STS Signals Telephone Mini-Concentrator system has been designed to meet the
exacting requirements of Rail Administrations, especially when working in an electrified
environment.

Based on the well established CONCEPT 32 design, the Mini-Concentrator shares many of the same approved components, and is particularly valuable where smaller numbers of lines are required and space is at a premium.

The Mini-Concentrator is used to control up to 16 remote telephones via a single control point from where each telephone may be called individually.

Applications include control of Signal Post Telephones (SPT’s) located at :

• SignalsPoint zones or ground frames
• Level crossings
• Station platforms

The Mini-Concentrator is particularly useful where a number of telephones need to be provided over a large area for emergency communications, such as railway networks.

The Mini-Concentrator is approved under Section 22 of the Telecommunications Act 1984.
A BABT approved version of the Telephone Interface (TIF) card and Auto Line card is available, and these cards also allow connection to the PSTN.

Absolute security of speech is fundamental to the design. The called, calling or connected party is positively identified and only one line can be connected at any time. A third party cannot overhear a call, and call security is provided by relay inter-locking which is monitored by a microprocessor.

Inherent in the design is high reliability, simplicity of operation and ease of maintenance.
All STS Signals’ concentrator systems are CE approved and comply with Safety
Standards EN 60950:2000, EMC Standards EN50121-4:2000 and R&TTE Standard
R&TTE(1999/5/EC).