| Technical drawing numbers | |
| S1859/1 | Record of amendments | 
| S1859/2 | Locking sketch | 
| S1859/3 | Mechanical locking table | 
| S1859/4 | Detection table | 
| S1859/5 | Electrical control table | 
| S1859/6 | Dog chart | 
| S1859/7 | Lever leads | 
| S1859/12 | Signal box diagram | 
Originally Lonlas South, a replacement type GW7d box was built in December 1920. It was renamed Llandarcy on 1st May 1923.
| ‹‹UP Click below to move to adjacent box DOWN›› | ||
| Jersey Marine Jcn North | —— This box —— | Lonlas Jcn. | 
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.