Keywords: JMRI BR2003 UK BR Signal Signals Signalling semaphore

# JMRI: BR 2003 Signalling Definition

This directory contains signalling definitions corresponding to the GE/RT8000 - S1 Rule Book as described in the June 2003 version of the "Signals and indicators controlling train movements", Module S1.

All definitions are suitable for Signal Mast Logic.

The signal masts are added to Layout Editor Block changes, with the exception of Buffer stops and Feather aspects.

The 2011 tutorial on Signal Mast Logic by Nigel Cliffe and Kevin Dickerson uses BR2003, the video demonstrations are particularly helpful. http://jmri.org/community/clinics/UK2011/index.shtml
Note that the method for adding feathers has changed slightly since this clinic, however the logic follows the same method.

Junction (Feather) indicators can be described using a Signal Mast. although its behaviour needs to be set up manually, using either Routes or Logix.
When creating the mast disable any unused aspect positions. The mast needs at least 2 aspects so always include the Zero aspect. as it will be used as an unlit status.
Add to a LE panel via the Signal Mast Icon button in the add item bar.
The Logix for the feather needs to have both the signal aspect AND turnout position(s) as conditions.
Have the Logix acting on the feather signal mast, not the turnout which is controlling any physical hardware.

These masts do not cover route (Theatre) indicators. They should be created via signal heads and controlled via logixs.

For three and four aspect signals, there are two options on how they can be built using Signal Heads , the first is to use a single JMRI Signal Head to represent the main Signal.
The second option is to build the signals using individual JMRI Signal Heads for each aspect. Depending upon the configuration in both JMRI and the hardware, will depend upon whether all the "flash" aspects are available.

Layouts using a CAN event-based system may be better off using Output Matrix or Turnout Controlled Signal Masts, see an example at MERG CBUS Signalling

The images used for BR2003 can be found in this folder, all have a transparent background.

The images are of 2 types, Aspects which show a Green / Red / Yellow signal mast icon,
along with Large which show a more prototypical graphic.

Aspect Name | Speed |
--- | --- | ---
Proceed | Normal |
Preliminary Caution | Medium |
Flash Preliminary Caution | Medium |
Caution | Slow |
Flash Caution | Slow |
Danger | Stop |
Off | RestrictedSlow |
On | Stop |

Aspect Names within these XML Files, Speed refers to speed set in PanelPro > Edit > Preferences > Warrants for Auto-Running.

### Aspect Files in XML Format :

Many browsers are unable to display the XML file when viewing these files offline.
You could use the links from the online version, or view the XML source ( Shortcut Ctrl & U ) .

See the aspect page.

#### Colour Light Signal Mast definitions:

- Buffer Stop
- 2 Aspect Distant Signal
- 2 Aspect Home Signal
- 2 Aspect Home Signal With Call On
- 3 Aspect Signal
- 3 Aspect Signal With Call On
- 3 Aspect Signal - Built using individual heads for each aspect
- 3 Aspect Signal With Call On - Built using individual heads for each aspect
- 4 Aspect Signal
- 4 Aspect Signal With Call On
- 4 Aspect Signal - Built using individual heads for each aspect
- 4 Aspect Signal With Call On - Built using individual heads for each aspect

Examples in no particular order:

Proceed 3 Aspect | Preliminary Caution 4 Aspect with Call-On | Caution 2 Aspect | Danger 2 Aspect with Call-On | Off 3 Aspect with Call-On | Flashing Caution 3 Aspect | Flashing Preliminary Caution 4 Aspect

#### Semaphore Signal Mast definitions:

- Distant Signal
- Home Signal
- Home Signal With Subsidiary Signal
- Home/Distant Signal

Examples in no particular order:

Proceed Distant | Caution Distant | Proceed Home Distant | Caution Home Distant | Danger Home | Danger Home Subsidiary | Off Home Subsidiary

#### Position Light Signals definitions ( aka Shunt or Shunting Signals ):

- Position Light Signal Red White Apperance
- Position Light Signal Yellow White Apperance

Examples in no particular order:

On Position Red White | Off Position | On Position Yellow White

#### Junction (Feather) indicator definitions:

- Feather with up to 6 positions

Aspect Name | Feather Direction | Icon
--- | --- | ---
Zero | Unlit |
One | North West |
Two | West |
Three | South West |
Four | North East |
Five | East |
Six | South East |

Suitable backgrounds for the feathers can be found in the Backgrounds folder for large icons.

1 |
1+2 |
1-3 |
1+4 |
1+2+4 |
1-4 |
1-5 |
1-6 |
1+2+4-6 |
1+4-6 |
1+4+5 |
4-6 |
4+5 |
4 |

#### Further Signalling Support

JMRI Aspect Signalling