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The Simis IS electronic interlocking provides an economical solution for interlocking systems in main-line and regional traffic and for industrial railways all over the world. It is based on the well proven Simis safety principle from Siemens.

Thanks to its compact, modular design, this new interlocking generation can be adjusted quickly and easily to local conditions and the operational requirements of the particular railway company. In the design of Simis IS, specific attention has been paid to flexible interfaces to both existing and future systems and components.

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The Simis W electronic interlocking – the fail-safe microcomputer system from Siemens for the global market – is a further development of the proven Simis C. It guarantees maximum security and availability as well as economical operation.

The system architecture of Simis W enables interlocking systems to be configured from individual elements. This makes it possible to implement customized interlockings very simply, from small solutions to major installations with 1,000 controlled elements.

The computers of the Simis W electronic interlocking, which process secure information for signaling, have a 2-from-3 configuration, in accordance with the proven Simis principle.

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Simis C is a standardized microcomputer compact system for the creation of signaling systems. The base unit of this type of interlocking are fail-safe computers which operate according to the Simis principle (Simis = "Sicheres Mikrocomputersystem von" Siemens; fail-safe microcomputer system from Siemens).

The modular design of the hardware and software allows the configuration of both small- and large-scale interlockings. The electronic interlocking is fitted with simple but powerful interfaces to other computer-controlled railway systems.

The Simis C electronic interlocking implements a large number of operating functions, including:

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The Sicas S7 compact electronic interlocking is used where especially economical operation is necessary, for example, on industrial railways and on regional lines. Safety requirements are met in line with CENELEC 50128/50129 up to SIL 4.

The Sicas S7 electronic interlocking is based on Siemens’ proven Simatic S7 programmable logic controllers. Scalable automation solutions with this basis have established themselves as a cost-effective industrial standard. With Simatic controllers, many different control and regulating tasks can be performed both flexibly and efficiently. Both work and costs can be minimized through the use of these proven standard components for railway automation.

Thanks to the modular design of both hardware and software, Sicas S7 electronic interlockings can be adjusted and extended in line with a wide range of different requirements and environments. The widespread use of Simatic controllers throughout the world offers railway operators the advantage when it comes to the supply of spare parts.

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EI S Public net stands for regional NETworks with branch-line technology using public transmission paths.

The El S Public net is tailored precisely to the traffic needs of branch lines. It divides up regional networks into decentralized controlled areas. 3 to max. 15 remote station modules can be controlled. EI S Public net uses only proven components of the El S electronic interlocking.

It is designed for use with:

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The EOW S7 decentralized electric point is tailored for use on private, rapid transit, and industrial railways and on secondary lines. It optimizes shunting operations and processes in all railway installations with simple operating conditions.

Points can also be set locally via a push switch or a control panel from the vehicle independently of an interlocking. This keeps operations moving and saves shunting personnel work. All associated processes are reliably monitored and controlled automatically from the EOW S7.

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The cableless, solar-powered, radio-operated approach annunciator not only complies with the highest safety standards for level crossings but, at the same time, helps reduce energy and investment costs with its cableless power supply and GSM-R mobile radio technology. This approach annunciator is used on interlocking-controlled level crossings with entry signal.
 

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The Simis DTS digital transmission system is used for the rapid and fail-safe transmission of information.Simis DTS incorporates a fail-safe computer system µECC (Micro Element Control Computer) as the computer core, and is a follow-up product for the single-frequency and carrier-frequency transmission system or pulse-code transmission system.