Technical drawing numbers
S1637/1Record of amendments
S1637/2Locking sketch
S1637/3Mechanical locking table
S1637/4Detection table
S1637/5Electrical control table
S1637/6Dog chart
S1637/7Lever leads
S1637/12Signal box diagram

‹‹UP  Click below to move to adjacent box  DOWN››
Brynmenyn Jcn.  ——  This box   ——  Pontyrhyll Station

The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on a CD-ROM entitled 'Great Western Railway Signal Box Diagrams - South Wales'. For availability and ordering information, click on the image below.

This page last updated on 8th October 2010.