| Signal Type |
Example |
Use |
| uk4 |
 |
Basic 4 aspect signal |
| uk4-ti |
 |
4 aspect signal with theatre indicator. The theatre indicator is used where there are multiple routes from a signal and displays a letter or number to display the route set. |
| uk4A |
 |
Four aspect signal with “A” plate to indicator automatic operation |
| uk4AAngled |
 |
Four aspect signal with offset head and A (automatic plate) |
| uk4DT |
 |
Four aspect signal with “dt” plate. The dt plate indicates that the signal is track circuited |
| uk4DTAngled |
 |
Four aspect signal with dt plate and offset head |
| uk4FDT |
 |
Four apsect signal with dt plate and “Following” signal (or “calling on”) |
| uk4JL |
 |
Four aspect signal with left junction indicator. Use where the secondary route diverges to the left. The white “lunar” lights indicate the route is set to the left when lit |
| uk4JLDT |
 |
Left junction signal with dt plate |
| uk4J2L |
 |
Signal with junction indicators for two left routes. Use the “J” and “J2″ markers in indicate the routes for each indicator |
| uk4JLR |
 |
Signal with indicators for left and right diverging routes. Use “J” indicator for left route and “J2″ for right indicator |
| uk4JR |
 |
Signal with right-hand junction indicator. Use where the secondary route diverges to the right. The white “lunar” lights indicate the route is set to the right |
| uk4J2R |
 |
Signal with junction indicators for two right routes. Use the “J” and “J2″ markers in indicate the routes for each indicator |
| uk4JRDT |
 |
Signal with right route indicator and dt plate |
| uk4JRDTAngled |
 |
Offset signal with right route indicator and dt plate |
| uk4R |
 |
Four aspect signal for use on the right of the track |
| uk4RA |
 |
Right side signal with A plate |
| uk4R-ti |
 |
Right signal with theater indicator |
| uk4T |
 |
Four aspect signal for use in tunnel |
| uk4T-ti |
 |
Tunnel signal with thatre indicator |
| uk4W |
 |
Wall mounted signal. For use in confined locations where there isn’t enough room for a normal signal post. |
| uk4W-ti |
 |
Wall mounted signal with theatre indicator. For use in confined locations where there isn’t enough room for a normal signal post. |
| uk4O |
 |
Overhead signal for gantry mounting |
| uk4OJL |
 |
Overhead left junction signal |
| uk4OJR |
 |
Overhead right junction signal |
| uk4OGLX |
 |
Overhead junction signal for use on goods loop. See Goods Loops |
| uk4OGLM |
 |
Overhead junction signal for use on main line at goods loop. See Goods Loops |