NR TI 100
Use of LED Long Range and Medium Range Signal Heads & LED SL35 Modules for Flashing Aspects
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| Organization: | NR |
| Publication Date: | 4 May 2012 |
| Status: | active |
| Page Count: | 5 |
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This instruction applies where a filament head is replaced by an LED head without prior design and when an LED SL35 module is installed in a BR903 signal head controlled from an SSI or relay installation.
Purpose
The LED signal head has been designed as a direct replacement of a conventional filament head and the LED SL35 module has been designed as a like for like replacement of the SL35 filament lamp in a BR903 signal head. In most cases there is no need to alter the fixed wiring when installing a LED head or the LED SL35 module, however if the signal is capable of displaying a flashing aspect then an alteration is required.
Document History
NR TI 100
May 4, 2012
Use of LED Long Range and Medium Range Signal Heads & LED SL35 Modules for Flashing Aspects
This instruction applies where a filament head is replaced by an LED head without prior design and when an LED SL35 module is installed in a BR903 signal head controlled from an SSI or relay...
June 1, 2008
Use of LED Long Range and Medium Range Signal Heads for Flashing Aspects
This instruction applies where a filament head is replaced by an LED head without prior design controlled from an SSI or relay installation.
Purpose of TI
The LED signal head has been designed as a...