Introduction

Executive Summary

This document provides the system description for the Tie-FenLock 400 Depot Control System (DCS) for use in depots, yards and other non-mainline applications. The Tie-FenLock 400 DCS is the most
advanced system of the Tie-FenLock series, providing a full signalling solution.

Tie-FenLock	Description
100	Locally Operated Point System (LOPS) – points are switched over by plunger local to a turnout.
200	Points Setting Panel (PSP) – each point end is operated using an individual switch on the panel.
300	Route Setting Panel (RSP) – similar arrangement to the 200 system. However, it includes axle counter train detection and all points in a route are operated by a single button.
400	Fully interlocked signalling system operated by a single control person, via a visual display unit (VDU).

The current UK installations are:

British Steel, Scunthorpe. Tie-FenLock 100 installation with 350 point ends (1989-90)
Bombardier Central Rivers Depot, near Derby. Tie-FenLock 300 installation incorporating 29 pointends, point position indicators throughout and axle counters (2001)
Siemens Southampton Depot. Tie-FenLock 300 installation incorporating 10 points indicators andapproximately 25 axle counters (2002)
ABP Immingham Depot. Tie-FenLock 300 installation incorporating 10 points and 1 Route SettingPanel (2002)
Alstom Morden Depot, London. A London Underground application with 32 point ends (2004)
Chilterns Wembley Depot. Tie-FenLock 400 installation incorporating 8 point ends (2004)
Alstom Golders Green Depot, London. A London Underground application (2006)
Chilterns Banbury Depot, Banbury. Tie-FenLock 400 installation with 7 point ends, fully interlockedwith signals and interfaced to the mainline (2016-17)
Bombardier Central Rivers extension. Modification to an existing Tie-FenLock 300 installation (2001)to provide an additional stabling road (2018)

Fenix Rail Systems recommend the Tie-FenLock 400 DCS for its centralised depot control features, flexibility, low operating costs, legacy support and standardised interface to Network Rail (NR) mainline interlockings and Depot Personnel Protection Systems (DPPS).

Overview of Benefits

The main benefits of the Tie-FenLock 400 system are: