NR - TI 100 ISSUE 1
Use of LED Long Range and Medium Range Signal Heads for Flashing Aspects
inactive
| Organization: | NR |
| Publication Date: | 1 June 2008 |
| Status: | inactive |
| Page Count: | 4 |
scope:
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 like for like replacement of a conventional filament head. In most cases there is no need to alter the fixed wiring when installing this type of head, however if the signal is capable of displaying a flashing aspect then an alteration is required.
Document History
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...
TI 100 ISSUE 1
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...