Bell code: Difference between revisions
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All codes, except 3—2—1, must be acknowledged by repeating the code received. |
All codes, except 3—2—1, must be acknowledged by repeating the code received. |
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==United States== |
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In the United States, these are known as '''Communication Signal Appliance''' codes. |
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!Signal |
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!Meaning<ref name="NORAC">{{cite web |url=http://www.amtrakengineer.net/NORAC90408.pdf |format=PDF |title=Communicating Signal Appliance |year=2008 |publisher=Northeast Operating Rules Advisory Committee |page=29 |accessdate=9 April 2011}}</ref> |
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|_||When running, stop at once. |
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|_||When standing, apply or release brakes. |
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|o o||When standing, start. |
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|o o o||When standing or running backward, back up two car lengths. |
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|o o o||When running forward, stop at next passenger station. |
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|o o o o||When standing, brakes have applied and released on rear car. Brake test completed. |
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|o||When spotting, switching, or making up trains, prepare to stop. |
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==See also== |
==See also== |
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<references /> |
<references /> |
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[[category:Rail transport in the United States]] |
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[[category:Rail transport in Great Britain]] |
[[category:Rail transport in Great Britain]] |
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[[Category:Rail transport in India]] |
[[Category:Rail transport in India]] |
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Revision as of 03:06, 10 April 2011
Bell codes or buzzer codes are a series of bells or buzzers used on passenger trains in Great Britain and India for communication between the driver and guard.
| Signal | Meaning in Great Britain[1] | Meaning in India[2] |
|---|---|---|
| 1 | Stop | Stop train |
| 1—1 | Zone of speed restriction over, resume prescribed speed | |
| 1—2 | Close doors | |
| 2 | Ready to start | Start train |
| 2—2 | Do not open doors | Passing automatic signal at 'on' |
| 3 | Set Back | Guard required by driver |
| 3—1 | Lock central door locking | |
| 3—2—1 | Testing doors | |
| 3—3 | Guard required by driver, or guard or driver to speak on the telephone | Guard's warning when the motorman exceeds the speed prescribed |
| 3—3—1 | Release central door locking | |
| 4 | Slow down | Protect train in rear |
| 6 | Draw forward | |
| 9 | Police assistance required |
All codes, except 3—2—1, must be acknowledged by repeating the code received.
United States
In the United States, these are known as Communication Signal Appliance codes.
| Signal | Meaning[3] |
|---|---|
| _ | When running, stop at once. |
| _ | When standing, apply or release brakes. |
| o o | When standing, start. |
| o o o | When standing or running backward, back up two car lengths. |
| o o o | When running forward, stop at next passenger station. |
| o o o o | When standing, brakes have applied and released on rear car. Brake test completed. |
| o | When spotting, switching, or making up trains, prepare to stop. |
See also
- Railway block code - bell codes used between manually operated signal boxes
- Whistle codes - used by locomotives to communicate with signal boxes
References
- ^ "TW1 Preparation and movement of trains: General" (PDF). GSM-R amendments to GE/RT8000 Rule Book (Strathclyde Trials). Rail Safety and Standards Board. 2006. p. 14. Retrieved 16 February 2010.
{{cite web}}: Unknown parameter|month=ignored (help) [dead link] - ^ "F. Duties of Staff Working Trains during Journey". Indian Government Railways Generla Rules. South Eastern Railway. 1999. 4.51. Bell signals between Driver and Guard. Retrieved 16 February 2010.
- ^ "Communicating Signal Appliance" (PDF). Northeast Operating Rules Advisory Committee. 2008. p. 29. Retrieved 9 April 2011.