Description

The HMR9 system consists of the following main components:

» Multi Object Bay – PPhysical structure containing the Object Controllers for controlling the field devices (signals, point machines, track circuits etc.).

» Fixed Telecommunications Network (FTN) – a switched Ethernet network between the interlocking system and all of the FTN access points for the object controllers connected to the interlocking system by fibre-optic, existing copper cable or via a wireless connection

» PLC Object Controller – A PLC to interface other interlockings or other surrounding areas

» Communication Networks – comprised of a wide area network consisting of ring-switch devices used to connect the central interlocking system with the peripheral equipment (and other peripheral applications) over a common Ethernet connection using gateways for connection down to the peripheral units; a local area network connecting the central interlocking system with the control and display system at the central post; and an internal area network within each section of the central interlocking unit.

» Remote panel control system – a control and display system which can be placed away from the central post (that is, situated in an operations office or on-site in the case of degraded mode).

» Central Post – the central post consists of the central interlocking unit and the control and display system, which includes the signaller control terminals, alarms and fault reporting, and event recording.

» Diagnostic Management System - the control point for a network management centre. It includes the maintenance terminals, alarms and fault reporting, event recording, diagnostics, archiving and retrieval facilities, and many other non-safety-related aspects for diagnostics control and supervision.

Technical specs