Portable Exchange Line Simulator Ztl 100 - UK Vintage Radio Repair and Restoration Discussion Forum

retrotelecom · 31st Oct 2009, 12:03 pm

Hi folks. Can anyone throw any light on the why's and wherefore's of this? I'm finding it almost entirely 'unGoogleable'. It's described simply as a PORTABLE EXCHANGE LINE SIMULATOR ZTL 100, but as I say, I can't find out what it does.

Darren-UK · 31st Oct 2009, 9:55 pm

It's exactly what it's name suggests ie it simulates an exchange. In other words it's used to test two telephone lines without the need to actually connect the lines to an exchange.

As far as I know these gadgets were/are used by the military but I'm not sure if ZTL100 was a military or manufacturers code.

retrotelecom · 31st Oct 2009, 10:06 pm

I suppose the name does give a clue! I have my eye on it for the purpose of meddling with old phones when I'm alone in my lonely digs with no landline. I wasn't sure if it would be good for that. I've now bought an old tele704b, which I am assured will do the trick, but if this wizzy looking one would be a snitch and may even do a better job - I'd be tempted to buy it.

mickjjo · 31st Oct 2009, 10:13 pm

This U.S. site gives some general information on Telephone line simulators which may be helpful:-

http://www.telephonetribute.com/telc...imulators.html

Regards, Mick.

retrotelecom · 1st Nov 2009, 2:27 am

Can I ask you guys that know. Is is a better device for my purposes than the 704b?

russell_w_b · 2nd Nov 2009, 3:06 pm

Quote:

Originally Posted by retrotelecom

Can I ask you guys that know. Is is a better device for my purposes than the 704b?

Not really, but it may do the job, albeit somewhat OTT! It may need programmed as well. I've just dug out my blurb for a 'Euro-Sim' telephone simulator, the salient points of which are as follows:

Design of auto-answer systems, modems, auto-diallers, etc...
Demonstrations and testing.
Quality control.
Service Centre use.

Such a device (the Euro-Sim, that is; don't know about the ZTL100) can be set to offer on/off cadences, exchange tones, ringing frequencies, variablr pulse-dialling ratios for all European telephone networks.

Could be worth getting hold of if the price is right, though!

retrotelecom · 4th Nov 2009, 5:49 pm

Only just seen your post. Thanks for the info. I've gotten hold of a Linesman's 704B, which obviously will do what I need, so I'm not sure whether to bother with the ZTL.

31st Oct 2009, 12:03 pm	#1
retrotelecom Retired Dormant Member Join Date: Oct 2009 Location: rugby Posts: 27	Portable Exchange Line Simulator Ztl 100 Hi folks. Can anyone throw any light on the why's and wherefore's of this? I'm finding it almost entirely 'unGoogleable'. It's described simply as a PORTABLE EXCHANGE LINE SIMULATOR ZTL 100, but as I say, I can't find out what it does. Attached Thumbnails

31st Oct 2009, 9:55 pm	#2
Darren-UK Retired Dormant Member Join Date: Apr 2003 Location: Blackpool, Lancashire, UK. Posts: 4,061	Re: Portable Exchange Line Simulator Ztl 100 It's exactly what it's name suggests ie it simulates an exchange. In other words it's used to test two telephone lines without the need to actually connect the lines to an exchange. As far as I know these gadgets were/are used by the military but I'm not sure if ZTL100 was a military or manufacturers code.

31st Oct 2009, 10:06 pm	#3
retrotelecom Retired Dormant Member Join Date: Oct 2009 Location: rugby Posts: 27	Re: Portable Exchange Line Simulator Ztl 100 I suppose the name does give a clue! I have my eye on it for the purpose of meddling with old phones when I'm alone in my lonely digs with no landline. I wasn't sure if it would be good for that. I've now bought an old tele704b, which I am assured will do the trick, but if this wizzy looking one would be a snitch and may even do a better job - I'd be tempted to buy it. Last edited by Brian R Pateman; 31st Oct 2009 at 10:28 pm. Reason: FRC

31st Oct 2009, 10:13 pm	#4
mickjjo Rest in Peace Join Date: Jul 2004 Location: Dartford, Kent, UK. Posts: 1,661	Re: Portable Exchange Line Simulator Ztl 100 This U.S. site gives some general information on Telephone line simulators which may be helpful:- http://www.telephonetribute.com/telc...imulators.html Regards, Mick.

1st Nov 2009, 2:27 am	#5
retrotelecom Retired Dormant Member Join Date: Oct 2009 Location: rugby Posts: 27	Re: Portable Exchange Line Simulator Ztl 100 Can I ask you guys that know. Is is a better device for my purposes than the 704b?

4th Nov 2009, 5:49 pm	#7
retrotelecom Retired Dormant Member Join Date: Oct 2009 Location: rugby Posts: 27	Re: Portable Exchange Line Simulator Ztl 100 Only just seen your post. Thanks for the info. I've gotten hold of a Linesman's 704B, which obviously will do what I need, so I'm not sure whether to bother with the ZTL. Last edited by Station X; 4th Nov 2009 at 7:00 pm. Reason: To comply with forum rules.