| Technical drawing numbers | |
| Record of amendments | |
| R312A | Mechanical locking table |
| R312B | Electrical locking table |
| R312D | Dog chart |
| Signal box diagram | |
The diagram below is a low-resolution version to indicate the content: a full-resolution 'pdf' file will be published on CD-ROM (SR Sections M, N & R, update CD). The update CD contains a redrawn or amended diagram. For availability and ordering information, click on the image below.
This page last updated on 14th February 2011.