Please note: this is an independant website and is NOT affiliated with Network Rail (NR).

Welcome to the website.

The entirely free-to-use site was started in 2009 with permission granted by Network Rail with the understanding that it was password protected by unique individual membership, of which it is.

It primarily started to aid trainees, as I've had a few posted with me and rather than repeat myself I put it in writing, however, it has grown substantially in popularity and now helps teams all over the UK and Europe who share the same signalling equipment.

I am blocked by copyright to post Network Rail or Railtrack documents.

However, quite alot of documents on here are of my own notes, some where none exist, such as the railway telephone guide and pin brazer notes. All of the notes contain the important parts so you can digest the information better and also have a quick reminder whilst travelling to a fault for instance.

Therefore because it doesn't contain NR's own standards endorsing their copyright protected information it is open to new Non-NR members.

I will update the site on a regular basis, so please keep returning to check for updates which will be stated below.

Thank you for visiting, 

Frankie Spowart

All documents are for information ONLY, they are not for Installation, Maintenance, Testing or Commissioning purposes. Please also be aware that signalling systems vary significantly by area, so not all of these documents may match your own area's systems.



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Latest updates:

Westpac MK4A (NEW - Sept 2018)

MCB - OD Level 1 & Level 2: both updated (June 2018)

Cable Testing (for newly qualified SMTH testers) (NEW - June 2018)

MCB - OD Level 1: updated (June 2018)

PICOP, ES, SWL & COSS roles in a T3 diagrams: Updated following Rule Book Dec17 changes (May - 2018)

MCB - OD SLFM Level 2: Minor errors corrected (April - 2018)

WestCad: How to replay signalling on geographical data display (NEW - Nov 2017)

MCB - OD v9 (LIDAR shutters added into circuit flowchart and relay functions tables added) (Nov 2017)

Working at Height - Using the Rescue Kit (NEW - June 2017)

TPWS Basics Document added (NEW - March 2017)

Backdrive Equipment List Updated (v1.4) (March 2017)

Clamp lock Installation Notes updated, now with pictures (January 2017)

PICOS arrangements key-point diagram added (NEW - January 2017)

Selc 45-18 Digital LC Audible Warning Timer - Set-up Instructions (NEW - Nov 2016)

Railway Telephone Guide updated (v2.1) to show new phones and amended cat numbers (Sept 2016)

MW - My Work App Basic User Instructions (NEW - August 2016)

DC Track Circuit Fault Flowchart v1.4 (updated with new symptoms) (August 2016)

MCB - OD v1.8 (updated with fault search guide & better CCTV instructions) (August 2016)

Siemens Modular Signalling with Westrace MKII I/L basic appreciation v1.2 added (Feb 2016)

MCB - OD v1.7 (maintenance info added as well as minor updates) (Feb 2016)

Back-drive Equipment List updated, now Version 1.3 (Feb 2016)

Tokenless Block updated with actual circuit diagrams and colour key (Jan 2016)

MCB OD v1.6 (updated the modular reset procedure) (Jan 2016)

Back-drive Equipment List updated (v1.2)  (Dec 2015)

GSM-R guides and National Phone Directory added (NEW - Nov 2015)

MCB OD v1.5 (procedure for handing back after being on local control and signallers fault guide added) (November 2015)

MCB - OD v1.4 (reset procedure added when working with modular signalling) (Oct 2015)


Guestbook reinstated after the original ceased trading. Please leave your valuable feedback.

Role of PICOP, SWL, COSS, IWA & ES in a T3 v1.7 possession diagram updated (Oct 2015)

Single Line Direction Lever Circuit added (NEW - Oct 2015)

Role of PICOP, SWL, COSS & ES in a T3 v1.3 possession diagram updated (Sept 2015)

Rule Book Links page updated after RSSB website update (August 2015)

Role of PICOP, SWL, COSS & ES (diagram) v.1.2 added (August 2015)

MCB - OD v1.3 (July 2015) Update: what to do to view video files by downloading third party program to view H.264 format.

Signal Clearing Process using Turn & Push Interlocking method (NEW - June 2015)

MCB - OD v1.2 added (May 2015)

AHB circuit added (NEW - May 2015)

Tokenless Block System (NEW - May 2015)

AWS system added (NEW - March 2015)

Level Crossing circuit flowchart (NEW - Feb 2015)

'BB3' type pin brazer updated and missing page 4 added (Jan 2015)

WestCad Basic Information, Functions & Fault Finding added (NEW - Dec 2014)

TDR operating instructions updated (NEW - Dec 2014)











































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