RFT T-63

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Topic author
vladimir
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Registriert: Mo 24. Okt 2016, 10:40
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Re: RFT T-63

#31

Beitrag von vladimir » Mi 28. Dez 2016, 14:18

Hi

I have bought RFT T-53/6 and RFT T-57-8.
We successfully connected all 3 devices(T-63, T-53, T-57). We can work in local loop.
Can you tell me how to work with T-57 from outside?
Where can i get a light bulb for RFT T-57/8?

Thank you

Vladimir
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Helge

Re: RFT T-63

#32

Beitrag von Helge » Mi 28. Dez 2016, 14:35

Hi Vladimr,

greetings, what's the rating of the lamps? Could be 24V 0,05A? It's typically printed on the lamps. They are called "Fernmeldekleinlampe".

If you want to use the FSG T57 as on a line you have to provide the line-current and the signing according
to TW39. The easy way would be I-Telex, there's a Card for that. You would then be able to communicate
with a bunch of People.

Where do you want to connect to? Do you want to use the Rotary dial to connect?

Regards

Helge


Topic author
vladimir
Rank 3
Rank 3
Beiträge: 22
Registriert: Mo 24. Okt 2016, 10:40
Hauptanschluß:

Re: RFT T-63

#33

Beitrag von vladimir » Mi 28. Dez 2016, 14:58

Helge hat geschrieben:Hi Vladimr,
Hi Helge
Helge hat geschrieben: greetings, what's the rating of the lamps? Could be 24V 0,05A? It's typically printed on the lamps. They are called "Fernmeldekleinlampe".
The lamp is indeed 24V 0.05A.
Helge hat geschrieben: If you want to use the FSG T57 as on a line you have to provide the line-current and the signing according
to TW39. The easy way would be I-Telex, there's a Card for that. You would then be able to communicate
with a bunch of People.

Where do you want to connect to? Do you want to use the Rotary dial to connect?
I don't really know what to do with RFT T-57 right now. I want to understand the line. Is it 40 mA loop or something else.


Right know i want to start my new device
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Helge

Re: RFT T-63

#34

Beitrag von Helge » Mi 28. Dez 2016, 15:29

Hi Vladimir,

" Is it 40 mA loop or something else"

Yes, it's a 40mA Loop with a Voltage of about 60 - 120 V (60 might be enough).
The singing is done by polarity reversal. That's all.

What type of plug does the RFT 57 have?

Regards

Helge


Topic author
vladimir
Rank 3
Rank 3
Beiträge: 22
Registriert: Mo 24. Okt 2016, 10:40
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Re: RFT T-63

#35

Beitrag von vladimir » Mi 28. Dez 2016, 15:39

Helge hat geschrieben:Hi Vladimir,

" Is it 40 mA loop or something else"

Yes, it's a 40mA Loop with a Voltage of about 60 - 120 V (60 might be enough).
The singing is done by polarity reversal. That's all.

What type of plug does the RFT 57 have?

Regards

Helge
4 pin plug.
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Helge

Re: RFT T-63

#36

Beitrag von Helge » Mi 28. Dez 2016, 15:48

Hi Vladimir,

good - the same as the T63.

http://www.wasser.de/telefon-alt/datenb ... ie=1000384

In the corresponding receptacle you have to bridge b and w. Your current-limited line source goes to a and E.
Depending on the polarity your T63 will start or not.

The polarity-reversal is done by the central Office Equipment, you would have to emulate that.

Concerning the lamps - I'll search for some - but they sould be still available.

Regards

Helge


Topic author
vladimir
Rank 3
Rank 3
Beiträge: 22
Registriert: Mo 24. Okt 2016, 10:40
Hauptanschluß:

Re: RFT T-63

#37

Beitrag von vladimir » Mi 28. Dez 2016, 16:17

Helge hat geschrieben:Hi Vladimir,

good - the same as the T63.

http://www.wasser.de/telefon-alt/datenb ... ie=1000384

In the corresponding receptacle you have to bridge b and w. Your current-limited line source goes to a and E.
Depending on the polarity your T63 will start or not.

The polarity-reversal is done by the central Office Equipment, you would have to emulate that.

Concerning the lamps - I'll search for some - but they sould be still available.

Regards

Helge
Thank you
I will try to find lamps in Russia.

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