[VoIP] Strowger 2000-type Final Selector

Tue Dec 18 08:52:30 CST 2007

I've just sent a copy of a 200 outlet Final Selector ATW to Mark with all 
the details

Ian Jolly
----- Original Message ----- 
From: "Andy Greening" <axg at syntec.co.uk>
To: "'Voice Over IP Tandem for Analog Switches'" <voip at ckts.info>
Sent: Tuesday, December 18, 2007 2:47 PM
Subject: Re: [VoIP] Strowger 2000-type Final Selector


> At the back of the switch you will find a connector (a set of what look 
> like
> teeth for want of a better description!) This is called the 'u' points.
>
> There is a white line between the middle ones. If you count from that line
> outwards to the right (this is the even connectors (I Think!!!)) they go 
> 2,
> 4, 6, 8,10 etc.  contact 12 is Battery (ie -50 v dc) Note that each 'pin' 
> is
> two contacts, there is a small insulating piece between them, so contact 
> 12
> is the outer contact on the third pin.
>
> Counting the other way from the line you go 1, 3, 5, 7, etc and contact 11
> is earth (ie 0 v dc).
>
> Incoming line is on 1 and 2, p wire is on 9. So looping 1 and 2 out to a
> loop dialling jellybone will allow you to dial into it.
>
>
> Hopefully this will help?
>
> Andy G
>
> -----Original Message-----
> From: voip-bounces at ckts.info [mailto:voip-bounces at ckts.info] On Behalf Of
> Mad Mark
> Sent: 18 December 2007 13:34
> To: VOIP
> Subject: Re: [VoIP] Strowger 2000-type Final Selector
>
>
>
>
> With many many thanks to Jon for pointing me in the right direction, I
> have obtained the maintenance documentation for a switch *very* similar
> to mine. There are only a few differences, making me think it's a
> slightly different model, but there was more than enough information to
> get the switch fixed and adjusted into a workable condition. It now
> steps horizontally and vertically with no trouble at all, and returns
> to the home position flawlessly.
>
>
>
> The only thing now is to make sure the electrical side of things work
> properly. As I don't have a 48.6V supply at the moment, I can't do any
> testing as yet... Not that I could without knowing where the power needs 
> to
> go. Tracing the wires is out of the question, as any color the wires may
> have had has since faded into obscurity. Still looking for a schematic of
> the switch, or at least a pinout so I know what connections on the back 
> and
> front are used for what.
>
> There are 2 wire jumpers on the front test panel, a red and green one. I
> don't know what these are for - perhaps used to take the switch out of
> service?
>
>
>
>> Date: Mon, 17 Dec 2007 12:52:33 +0000
>> From: g4vft at btinternet.com
>> To: voip at ckts.info
>> Subject: Re: [VoIP] Strowger 2000-type Final Selector
>>
>>
>> Mark,
>> For the mechanical adjustments, take a look at Andy Greening's site,
>> www.uax.me.uk
>> Go to Misc EI's and download B5156.
>> As for the diagram, you need to tell us the "AT" number of the selector,
>> usually on a paper label, somewhere around the casting.
>>
>>
>> Jon
>>
>> Mad Mark wrote:
>> > So, I picked up the selector today. The first piece of my collection.
> It's a beauty!
>> >
>> > However, there is a little fault on the switch. Theres a little 
>> > armature
> that pushes the selector rod around to swing the contacts. This little arm
> is stuck in a raised position as the hinge is a little stiff and won't let
> it drop back down to push the next ratchet tooth. Has anyone repaired one 
> of
> these beautiful devices before? Can you give me some tips or pointers as 
> to
> how I might go about repairing this little part?
>> >
>> > Also, I'm wondering if anyone has a scan of the schematic diagram of
> this selector. From Mr. Buckley I've learned many things about this 
> switch,
> but sadly, my knowledge is still a little incomplete.
>> >
>> > Thanks heaps.
>> >
>> > _________________________________________________________________
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