Driver to guard buzzer

[Julius]

Any reason why on a HST Power Car the driver to guard buzzer is sounded as a beep rather on Units it is a buz?

 

[Intermodal]

It's because when they made the HST power car, they put a beeper unit in instead of a buzzer unit.

 

[Julius]

I actually never thought of that, as they say the world would be boring without differences!

 

[Intermodal]

It really is just an aesthetic (earsthetic?) thing. Voyagers and Pendolinos also have beepers, off the top of my head.

 

[6Gman]

Guard - Driver communication on Southern is largely bleep - bleep now isn't it?

 

[GW43125]

Guard - Driver communication on Southern is largely bleep - bleep now isn't it?

Most BREL stock (ie 455s) retains the bell, as does electrostar stock.

 

[Mintona]

In general:

EMUs - Bell
Older DMUs - buzzer
HSTs and modern DMUs - beep

 

[scotraildriver]

Our 156/158 and most 170's are beep. The only buzzer are the newer generation 170's.

 

[Parallel]

Pretty sure GWR 158s and ATW 158s are buzzer?

Are 180s and 175s both beep?

 

[Bletchleyite]

I've been long intrigued as to why EMUs were traditionally bells and DMUs buzzers. Anyone know?

 

[380101]

Our 156/158 and most 170's are beep. The only buzzer are the newer generation 170's.

158s we had back in 2012 for training train from Motherwell to Cumbernauld were all Buzz-buzz.

 

[TwinTurbostar]

Our 156/158 and most 170's are beep. The only buzzer are the newer generation 170's.

London Midland's 172s were 100% buzzer when I was last on one, and I'm pretty certain the 323's are too.

 

[Lrd]

I've been long intrigued as to why EMUs were traditionally bells and DMUs buzzers. Anyone know?

Was it a Southern region thing to use a bell?

 

[HowardGWR]

Hopefully not too OT. Today on XC Exeter to Bristol (and back), at each stop, I heard three buzzes, pauze, followed by three buzzes. Then a pause. Then the usual two buzzes followed by two buzzes - and away we went,as normal.
What were the first pair of three buzzes all about? Never heard before.

 

[louis97]

Hopefully not too OT. Today on XC Exeter to Bristol (and back), at each stop, I heard three buzzes, pauze, followed by three buzzes. Then a pause. Then the usual two buzzes followed by two buzzes - and away we went,as normal.
What were the first pair of three buzzes all about? Never heard before.

Were you on a Voyager? The three buzzes would of actually been 1 and then 2, this is the code to instruct the driver to close the doors. The first would of been the guard to the driver, second the driver responding. This is then followed by the usual ready to start.

 

[AlexNL]

Guard - Driver communication on Southern is largely bleep - bleep now isn't it?

What guards?

On a more serious note: how did buzzer communication come to be in the first place? Was it invented before the telephone or radio transceivers?

 

[E_Reeves]

Pretty sure GWR 158s and ATW 158s are buzzer?

Are 180s and 175s both beep?

158s are buzz
180s and 175s are both beeps

 

[E_Reeves]

Hopefully not too OT. Today on XC Exeter to Bristol (and back), at each stop, I heard three buzzes, pauze, followed by three buzzes. Then a pause. Then the usual two buzzes followed by two buzzes - and away we went,as normal.
What were the first pair of three buzzes all about? Never heard before.

This is common practise for XC, and GWR too if I remember rightly?

Were you on a Voyager? The three buzzes would of actually been 1 and then 2, this is the code to instruct the driver to close the doors. The first would of been the guard to the driver, second the driver responding. This is then followed by the usual ready to start.

The guard closes the doors, the 1-2 buzz is just a guard-driver confirmation.

 

[TT-ONR-NRN]

In general:

EMUs - Bell
Older DMUs - buzzer
HSTs and modern DMUs - beep

I've been long intrigued as to why EMUs were traditionally bells and DMUs buzzers. Anyone know?

EMUs use beeps too:

Class 350
Class 360
Class 390
Class 444
Class 450

All do anyway. Not sure about Class 380.

 

[380101]

EMUs use beeps too:

Class 350
Class 360
Class 390
Class 444
Class 450

All do anyway. Not sure about Class 380.

The 380 uses beeps aswell when operated on Driver - Guard services ie; Glasgow Central - Edinburgh Waverley/North Berwick where the driver opens the doors and the guard closes them.

 

[Bletchleyite]

The guard closes the doors, the 1-2 buzz is just a guard-driver confirmation.

Not on 22x they don't. The driver operates the doors under the guard's instruction using the buzzer. Guard's panels on 22x (well, Voyagers anyhow, 222s may differ) have only a key switch (which also enables local door) and signal buzzer.

The sequence is:
Guard->Driver 1-2 on buzzer
Driver starts door closure and returns 1-2. Local door remains open.
Once doors verified closed guard closes local door and gives 2
Driver returns 2 and departs.

I have no idea how this odd setup came to be - perhaps the long term plan was DOO?

 

[E_Reeves]

Not on 22x they don't. The driver operates the doors under the guard's instruction using the buzzer. Guard's panels on 22x (well, Voyagers anyhow, 222s may differ) have only a key switch and signal buzzer.

But I thought I saw the guard's local door stay open, or does the driver control that too?

 

[Bletchleyite]

But I thought I saw the guard's local door stay open?

The guard's key switch stops the driver locking the local door.

It's *not* DOO or any form of it, the driver controls door closing completely under guard supervision.

 

[E_Reeves]

The guard's key switch stops the driver locking the local door.

It's *not* DOO or any form of it, the driver controls door closing completely under guard supervision.

Oh so local door closes when key is turned?

 

[TT-ONR-NRN]

Voyagers don’t buzz they definitely beep - you can hear it from the platform it’s so loud

 

[Bletchleyite]

Oh so local door closes when key is turned?

That or he can use the passenger close button. What the key does (among other things) is prevents a "close" signal from the cab closing that door.

 

[E_Reeves]

Voyagers don’t buzz they definitely beep - you can hear it from the platform it’s so loud

Yeah, early mornings at Nuneaton standing on platform 7 you can hear them bleeping away on platform 4!

 

[E_Reeves]

That or he can use the passenger close button. What the key does (among other things) is prevents a "close" signal from the cab closing that door.

I never knew Voyagers had such a unique setup...

 

[8J]

I hate modern units with the beepers. They are not very distinguishable from other in cab beeps.

All of the Scotrail 156's and 158's that I have been on have beepers in the cab but the GOPs in the middle of a Scotrail 158 have buzzers.

I remember once a Northern 319 that I worked had a bell in one cab and a buzzer in the other!

 

[Bletchleyite]

I never knew Voyagers had such a unique setup...

I'd love to know why, it looks like a right faff.