Classic Rotary Phones Forum

Telephone Switching => Strowger (Step by Step) Switching => Topic started by: dsk on August 28, 2013, 08:42:47 AM

Title: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on August 28, 2013, 08:42:47 AM
I just (15 minutes ago) located this cabinet in a room at our temporary locations at job, and need help to find out more.
But for sure, I want it  :)
No I have to figure out how to get it legally.

dsk
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: dsk on August 28, 2013, 09:40:26 AM
I found some documentation, but it is not easy to scan after years stored together with lead acid batteries  >:(

http://www.scribd.com/doc/163713446/Manual-T-N-50-6-exchange-1964 (http://www.scribd.com/doc/163713446/Manual-T-N-50-6-exchange-1964)

dsk
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: G-Man on August 28, 2013, 09:55:53 AM
Not Strowger but a German product. When it was marketed in the U.S. it was called TeleNorm.

I believe Steph Kerman on the TCI list has documentation for them.
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: twocvbloke on August 28, 2013, 10:04:55 AM
Quote from: dsk on August 28, 2013, 08:42:47 AMBut for sure, I want it  :)

Fingers crossed that you get it, looks pristine from the pictures...  :)
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: Haf on August 28, 2013, 12:41:21 PM
does that come close?

http://www.gvit.de/firmen/tn/produkte/drehwaehler2

And you have a nice, clearly understandable manual (if you speak German of course)
What exactly do you want to know? :)

Haf

p.s. is it my problem or yours dsk if sending you a pm get following msg:
Send report
Unable to find member 'dsk'.

The following error or errors occurred while posting this message:
One or more 'to'-recipients could not be found.

even restarted my computer but problem still remains.
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: AE_Collector on August 28, 2013, 01:01:48 PM
I think that Jeremy Walters (oldphon) has a TeleNorm switch.

Terry
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: dsk on August 29, 2013, 05:16:30 AM
I have scanned the complete documentation (puh!) and updated the file.
http://www.scribd.com/doc/163713446/Manual-T-N-50-6-exchange-1964 (http://www.scribd.com/doc/163713446/Manual-T-N-50-6-exchange-1964)

Please feel free  to use it as you want.

dsk

PS to haf:
Lots of login problems here due to changed email in my profile. Solved now :D

The selector you pointed out looks nearly the same as in my scanned file.

Could you please translate for us a short summery so we may know if this is a PAX or a PABX, how many lines etc.
I'm not even sure this is a step by step, or it has some kind of register. The rotating selectors has much more than 10 positions.

ds
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: Haf on August 29, 2013, 03:09:55 PM
Sure I can do so. But if you don't mind tomorrow, more time than today :)

Haf
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: dsk on August 29, 2013, 04:06:35 PM
 :D Great!   :D

Thank you!

dsk
Title: Re: Not sure if this may be called Strowger? T&N Germany
Post by: AE_Collector on August 29, 2013, 11:21:57 PM
dsk:

It would appear to be almost identical in operation to this one that I am in the process of getting:

http://www.classicrotaryphones.com/forum/index.php?topic=9506.0

If so it will likely be a PAX using rotary switches. John gave excellent description of how the rotaries work with something like this.

Terry

Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on August 30, 2013, 10:24:17 AM
Some more pictures:
dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on August 30, 2013, 10:27:36 AM
even more pictures:
dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on August 30, 2013, 10:30:58 AM
more:
dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 04, 2013, 04:52:23 AM
I hooked up a printer power supply 24V 2 amp, and 2 but-sets. Held my mobile's microphone near the earpiece, and recorded, dial tone (strange interrupted) dialing, ringing, and repeated to ring the but set, and get busy tone.

The file is just as downloaded from my mobile.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: twocvbloke on September 04, 2013, 08:35:38 AM
Rather unusual sounds from that system, I guess that'd make it a unique feature, means you have to acquire the whole unit for further play, I mean investigative testing... ;D
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: Haf on September 04, 2013, 12:30:40 PM
are those three tones in series Norwegian dial tone? As in this untit the tones where produced as I guess with a Ruf- und Signalmaschine, an electro-mechanical device (I don't have the slightest idea if that is english or just my translation from the German words). So I suppose it can produce differnt countries dial tones. If it is not your dial tone, it remeinds me to an Aufschalteton or Aufton, means that someone ...omg, how to describe that properly... connected into the line (like the operator can do when you're having a call with someone to tell you to insert more money or that there is another call waiting for you). But as I know the Aufton it where only 2 tones in series, even if it sounds same as yours only one tone less.

Haf
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 04, 2013, 12:50:46 PM
Our (Norwegian) dial tone is a steady tone, usually 425Hz.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: Haf on September 04, 2013, 02:08:31 PM
The German dial tone since 1979 is a steady 475 Hz tone, pre 1979 it was a 475 Hz morse A.
Take a look here if you like:

http://tinyurl.com/mgzhjgc


Haf
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 05, 2013, 03:10:07 PM
This could be an S in the Morse alphabet. It would be a clear difference to the POTS dial tone.
The frequency used are about 416 Hz.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: Haf on September 05, 2013, 03:58:12 PM
Please compare to the Aufschalteton with 425 Hz. Maybe you could compare the length too. But still there is one tone in the sequence missing.

Haf
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 07, 2013, 01:48:54 PM
So what I have located is an PBX (no trunk lines) with (in this case) 30 extentions and 4 connections.
(probably a lo cost version)

When I look at the tones, it is stated to be 425Hz (measured 416) where the:
Dial tone (WZ) are a Morse code S 5 times pr 10 sec.
The ringing (FZ)is 1sec ring and 4 sec pause.  (The ringing is 25Hz on the line)
It is 2 types of busy signals.
(BZ) 16 short pulses pr 10 sec. (Morse code E) (When the other end is busy) (Whats the English name for this?)
and
(FLZ) 10 long pulses pr 10 sec. (Morse code T) (Other equipment is busy) (Whats the English name for this?)

(The letters S T and E are seen in the documentation of the ringer unit)

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: twocvbloke on September 07, 2013, 02:38:30 PM
Quote from: dsk on September 07, 2013, 01:48:54 PM(BZ) 16 short pulses pr 10 sec. (Morse code E) (When the other end is busy) (Whats the English name for this?)
and
(FLZ) 10 long pulses pr 10 sec. (Morse code T) (Other equipment is busy) (Whats the English name for this?)

First one would be Engaged or Busy tone, 2nd one I would say is Exchange Busy tone (not sure what the US term for that is though)... :)
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 07, 2013, 03:42:26 PM
The busy signal are used for both purposes here in Norway in the regular POTS.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: AE_Collector on September 07, 2013, 04:50:19 PM
Quote from: dsk on September 07, 2013, 01:48:54 PM
So what I have located is an PBX (no trunk lines) with (in this case) 30 extentions and 4 connections.
(probably a lo cost version)
dsk

You probably mean PAX rather than PBX? PBX (Private Branch Exchange) would normally have trunks to/from the CO (thus the Branch Exchange terminology in the name PBX) where as a PAX (Private Automatic Exchange) would typically not have trunks so it is a Telephone Intercom.

By "4 connections" you mean it can handle 4 calls at the same time, correct?

Looks very similar to the one that I have yet to go collect. Do you have this now dsk?

Terry
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: poplar1 on September 07, 2013, 07:22:16 PM
Current standard here:

"Busy Signal" or "busy tone"--60 i. p. m. (0.5 second on, 0.5 second off)
"Reorder Tone" or "fast busy"--120 i. p. m. (0.25 second on, 0.25 second off)--used for invalid extension number and All Trunks Busy

Don't know what the i stands for--maybe interruptions? p. m.=per minute
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: AE_Collector on September 07, 2013, 08:28:18 PM
Impulses Per Minute I think....isn't it?

Terry

Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 08, 2013, 08:33:11 AM
Quote from: AE_Collector on September 07, 2013, 04:50:19 PM
Quote from: dsk on September 07, 2013, 01:48:54 PM
So what I have located is an PBX (no trunk lines) with (in this case) 30 extentions and 4 connections.
(probably a lo cost version)
dsk

You probably mean PAX rather than PBX? PBX (Private Branch Exchange) would normally have trunks to/from the CO (thus the Branch Exchange terminology in the name PBX) where as a PAX (Private Automatic Exchange) would typically not have trunks so it is a Telephone Intercom.

By "4 connections" you mean it can handle 4 calls at the same time, correct?

Looks very similar to the one that I have yet to go collect. Do you have this now dsk?

Terry
;) You are right again. PAX! And yes it may handle 4 calls at the same time.
Thank you, and please keep on helping me to understand and express my self in an understandable English language.
dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: AE_Collector on September 08, 2013, 12:11:24 PM
We virtually always know what you mean (in English) dsk and most of the time your English is perfect. Everyone talk to dsk in only in Norwegian for the rest of the day. Hmmm, on second thought....

Terry
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: HarrySmith on September 08, 2013, 05:41:22 PM
I personally have never has a problem with your posts, always perfectly understandable.
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: AE_Collector on September 08, 2013, 07:41:42 PM
Now I wouldn't blame dsk for not being able to understand OUR English!

Terry

Quote from: HarrySmith on September 08, 2013, 05:41:22 PM
have never has a problem

Quote from: AE_Collector on September 08, 2013, 12:11:24 PM
talk to dsk in only in Norwegian
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 11, 2013, 02:51:22 PM
Quote from: AE_Collector on September 07, 2013, 04:50:19 PM
Quote from: dsk on September 07, 2013, 01:48:54 PM
So what I have located is an PBX (no trunk lines) with (in this case) 30 extentions and 4 connections.
(probably a lo cost version)
dsk

You probably mean PAX rather than PBX? PBX (Private Branch Exchange) would normally have trunks to/from the CO (thus the Branch Exchange terminology in the name PBX) where as a PAX (Private Automatic Exchange) would typically not have trunks so it is a Telephone Intercom.

By "4 connections" you mean it can handle 4 calls at the same time, correct?

Looks very similar to the one that I have yet to go collect. Do you have this now dsk?

Terry

:D ;D :D Today, I got the message, and as you have guessed of the smiles. I got it. (for free)
I have cut the cables in the height of the cable bridge under the ceiling, and unbolted it from the wall.

It a quite heavy cabinet and I have to take it down the stairs 1/2 floor because it is between 2 stops of the elevator, bring it up and out on a trailer. (This was a difficult sentence, could it be said easier?)

This is planned to be done within 8 days.

Should it be nominated as a candidate to the find of the month?

:) :) :)

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: twocvbloke on September 12, 2013, 02:03:21 AM
Quote from: dsk on September 11, 2013, 02:51:22 PMShould it be nominated as a candidate to the find of the month?

I'd say so, it's not often people find a mechanical PAX still in situ that still works like the day it was made... ;D

Quote from: dsk on September 11, 2013, 02:51:22 PMIt a quite heavy cabinet and I have to take it down the stairs 1/2 floor because it is between 2 stops of the elevator, bring it up and out on a trailer. (This was a difficult sentence, could it be said easier?)

I presume that you mean it's located between floors, thus making transport in a lift difficult as it doesn't stop on mid-floors (unless you do a "Being John Malkovich" stop on Floor 7 & 1/2 thing with the lift car!!), you could lighten the load by taking parts out if they unplug easily, means more trips back & forth, but it's better doing that than putting your back out trying to move it safely... :)
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 12, 2013, 03:36:13 AM
Quote from: twocvbloke on September 12, 2013, 02:03:21 AM

I presume that you mean it's located between floors, thus making transport in a lift difficult as it doesn't stop on mid-floors (unless you do a "Being John Malkovich" stop on Floor 7 & 1/2 thing with the lift car!!), you could lighten the load by taking parts out if they unplug easily, means more trips back & forth, but it's better doing that than putting your back out trying to move it safely... :)

Exactly what I tried to say. Since I have to clean up after the job is done because it is right to leave the building in a good shape. I don't want bend up the doors at -1/2 ;D. With a hope of been remembered positively as a source to costless removeing problems as waste as telephones, and exchanges...  ;) The company or foundation are owning this and lots of other older buildings.

Another reason to skip that John Malkovich way of doing it its easier to take it down the stairs the going like that with a heavy trolley and I'm to tall. (nearly 6'4")  http://tinyurl.com/mbego36 (http://tinyurl.com/mbego36)

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on September 19, 2013, 04:28:06 PM
Now It is secured  ;)
I have paced it in the garage, powered it up and changed the dial tone to constant tone. Every electronic device recognized the original Morse code S as a busy signal.
Still problems with linking it to internet, but another interesting development is:
The Telemuseum in Oslo may want to display it in working order. Behind glass, and with open door, you may coll from one telephone to another, and see how it works.

I really hope this will be a reality.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: AE_Collector on September 19, 2013, 10:12:52 PM
That would solve your lack of space issue as well dsk.

Terry
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on October 16, 2013, 04:27:47 AM
The telecom museum has putted the project on hold, it looks like the main supporter, the local telecom provider don't want to give support them with so much money as before.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on October 16, 2013, 04:37:06 AM
In the mean time you may call the exchange and listen to the tones.

I was able to tune down the volume enough to make my tone to pulse converter working.
I had to make the dial tone constant, due to the original was recognized as some busy signal.

The C*NET inbound portal may be this US number:  206-203-6610
When it answers you may dial the C*NET number 47-2-77-66-34  (47= Norway, 2=Oslo area in the old dial plan)
New dial tone. 94 gives busy, 95 rings .... just play around as you want.
The extensions available are: 2-6, 11-15, 80-89, 90-99.  Dialling a non existing extensions seems to result in silence.
(added 24. oct)

So from POTS 206-203-6610 wait for answer, dial  47-2-77-66-34 wait for dial tone and dial whatever you want, and explore it. (eg 94 or 95)

Calling from Google are of course free of charge, just as C*NET.

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on October 24, 2013, 03:55:33 PM
Quote from: Haf on September 04, 2013, 02:08:31 PM
The German dial tone since 1979 is a steady 475 Hz tone, pre 1979 it was a 475 Hz morse A.
Take a look here if you like:

http://tinyurl.com/mgzhjgc


Haf

The could be approx like this on a linksys/sipura adapter:
475@-10;20(.2/.3/1,.7/.8/1)


And my TN

425@-10;20(.2/.2/1,.2/.2/1,.2/.8/1)

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on March 17, 2015, 01:55:35 PM
 ;D Finally, it seems like I have found another Norwegian telephone collector who may give this exchange a new good home  :)
I give it away to one I believe will use it.  A very young man working in a little company whom may be the only real experts still dealing with mechanical PAX's and central clocks. 
I will definitely invite him to register here!

dsk
Title: Re: TeleNorm T-N-50-6-exchange-1964 T&N Made in Germany
Post by: dsk on April 25, 2023, 03:32:17 PM
The collector has ran out of spce so it is just to come to Norway and pick it up :)