[GreenKeys] Newbie - Siemens T100A Questions

[Henning Treumann]

Hi Christopher,

you have to supply 'line current'.
I am not familar with the Aussie version called M100, but if you
have got a German or international version T100 you should have a
line cable with 4 wires and following colours:

white = transmitter contact
brown = transmitter contact
green = receiver magnet
yellow = receiver magnet

Jumper brown and green and supply loop voltage aof minimum 30 volts
and current limited to 40ma to whit and yellow.
Then you should be apply to use the machine locally and you can
type on it like on a typewriter.

Since it is a German machine and most knowledge of it is accumulated in
Germany I woud recommend to register at
www.telexforum.de. This is the main platform for Siemens and Lorenz
knowledge exchange. Although in German language feel free to use
English as well.

73
Henning DF3OE

www.teleprinter.net
www.i-telex.net
www.telexforum.de


2017-08-09 10:33 GMT+02:00 Sam Hallas via GreenKeys <
greenkeys at mailman.qth.net>:

> Christopher Platt (VK5CP) wrote:
>
>> I have acquired a Siemens T100A teletype machine When I power it up
>> the motor runs and make lots of suitable noises, the ribbon moves up
>> and down, but pressing the keys doesn't do anything. Its like its
>> waiting for a signal or something.
>>
>
> I haven't owned a T100 for many years, but I recall that the standard
> wiring was for duplex working, so you need to add a power supply and couple
> the keyboard contact to the receive magnet to get local copy.
>
> I'm sure there is a T100 manual on line somewhere which would be a help.
> It sounds as if your model has had some modification already as the
> switchboard plug is NOT part of the normal wiring!
>
> Sam
> (was G8EXV)
>
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