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Y245BR Failed

You are here: Home > Forum > Simulations > Released > York North/South > Y245BR Failed

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Y245BR Failed 12/09/2019 at 22:17 #120370
9pN1SEAp
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244 posts
A curious thing... Y245BR has failed in advance of Skelton Junction DFL path, and is showing unlit... but ONLY in the Off position!

Not sure if this is a sim-specific funny or core?

Thanks
Jamie

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Jamie S (JAMS)
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Y245BR Failed 12/09/2019 at 22:50 #120372
GeoffM
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4598 posts
A mechanical banner can fail if it doesn't "prove" in the correct position; an electronic one can fail if not enough lamps are lit.
SimSig Boss
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The following user said thank you: 9pN1SEAp
Y245BR Failed 13/09/2019 at 08:12 #120376
Giantray
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209 posts
Banner repeaters can be Mechanical, Fibre-optic or LED. It is very common for Fibre-optic and LED types to not be working in one position, i.e not lit. Mechanical Banners would have one back light, so if unlit would not be seen at night. Whereas Fibre Optic and LEDs if unlit cannot be seen at all. If I remember correctly, Fibre Optic Banners have two lamps, one for each position of the Banner, so if one lamp goes, indication is lost for the position that lamp is for.
Professional Railwayman since 1981. Railway Historian (SER, LCDR)
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Y245BR Failed 13/09/2019 at 11:53 #120380
Edgemaster
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216 posts
Yes, banner repeaters can fail in SimSig :)

I'll also add that the signal reading onto the banner repeater will usually only prove the banner's On aspect is lit before clearing. Banner Off aspects are generally not proved by the signal in rear.

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Y245BR Failed 13/09/2019 at 19:38 #120390
Stephen Fulcher
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1487 posts
Giantray in post 120376 said:
Banner repeaters can be Mechanical, Fibre-optic or LED. It is very common for Fibre-optic and LED types to not be working in one position, i.e not lit. Mechanical Banners would have one back light, so if unlit would not be seen at night. Whereas Fibre Optic and LEDs if unlit cannot be seen at all. If I remember correctly, Fibre Optic Banners have two lamps, one for each position of the Banner, so if one lamp goes, indication is lost for the position that lamp is for.
I won't say all fibre banners everywhere as someone will undoubtedly know somewhere that isn't, but generally fibre banners have TWO lamps for the on position and one lamp for the off position.

If one of the on lamps fails then a filament failure will be indicated for the Technician to intervene.

This is done because an unlit banner in the on position will hold the signal in rear at danger, whereas it doesn't matter if it isn't lit if it was supposed to be off.

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