Electronic Interlocking

Electronic Interlocking ILM681

Interlocking is an indispensable safety system in railway signaling
The ILM681 main processing unit architecture is based on 2 out of 3 majority voting

Reliability

High system reliability and availability

Cost Effective

Cost effective solution for main line and urban applications

Distributed Architectures

Central or distributed architectures

Easy Setup

Easy and fast setup thanks to the powerful configuration software

Modular System

Compact modular full electronic system

External Links

Redundant internal and external communication links

Main Processing

2 out of 3 principle main processing unit

Fiber Optic Cables

Fiber Optic and/or copper cables between main processing and field object control units

Easy Installation

Fast and easy installation due to prefabricated interconnection cables

Easy Maintenance

Easy maintenance thanks to modular design and slide-in card modules

Powerful Diagnosis

Powerful Diagnosis and event recording unit

Visual Play Back

Visual play back of operations with adjustable speed

Electronic Interlocking ILM681

Interlocking is an indispensable safety system in railway signaling. The ILM681 main processing unit architecture is based on 2 out of 3 majority voting. Field object controllers are solid state modules, connected to the main processing unit. The system is flexible to be adapted to small scale up to very large scale stations. Field object controllers could be configured individually or in groups, according to the specific requirements based on Central or DCS architectures.
Thanks to high system modularity there is no actual limitation on the number of objects to be controlled by each interlocking system.

Structure

Each Electronic Interlocking consists of the following units :

Main Processing unit
Field Object Control units
Operator unit
Diagnosis unit
Terminal unit

Key Features

Cost effective solution for main line and urban applications
Central or distributed architectures
High system reliability and availability
2 out of 3 principle main processing unit
Compact modular full electronic system
Redundant internal and external communication links
Easy and fast setup thanks to the powerful configuration software
Fiber Optic and/or copper cables between main processing and field object control units
Fast and easy installation due to prefabricated interconnection cables
Easy maintenance thanks to modular design and slide-in card modules
Powerful Diagnosis and event recording unit
Visual play back of operations with adjustable speed

Auxiliary Software Tools

One of the key features of Electronic Interlocking ILM681 is its fast setup. System powerful configuration software tools make it possible to achieve this goal. Another auxiliary software is Visual Play Back with adjustable speed. This is a very helpful tool for training purposes or event analysis.

Structure and Operational Features

Main Processing unit

Electronic Interlocking ILM681 main processing unit is based on 2 out of 3 majority voting principle. All the modules are slide-in cards in 19″ rack mount housings.

Terminal unit

Field objects are connected to control system by Terminal unit. Protections have been considered as necessary at the terminals.

Diagnosis unit

This unit records all the events and messages for any specified period of time. The supervisory and maintenance of the system is facilitated by searching the recorded data in the concerned time span. This is a redundant unit consisting of two processing modules. The modules are slide-in cards in 19” rack mount housing.

Field Object Control units

These units are normally close to the main processing unit in the same control room. To avoid of using high amount of cables in large scale stations as well as in the areas with distributed architectures mainly in Urban applications, the field object control units are close to the group of objects and connected to the main processing unit by means of fiber optic cables.
All the objects such as points, signals, track circuits, axle counters, Block interfaces are connected to these units. Modular design makes any expansion and modification possible after installation, at any time.
The modules of these units are slide-in cards in 19” rack mount housing.