15 Feb
2017
15 Feb
'17
6:45 a.m.
On 02/15/2017 03:40 PM, COURYHOUSE at aol.com wrote:
I have not heard of 40 mil loop here on ttys...
generally 20 mil or
60 mil. - At least what I have encountered. Is the 40 mil. standard in
Europe?
I have not heard about 60mA - at least not in the Telex network.
All mechanical 5 step teleprinters I have ever seen and owned run on
40mA. And my test equipment has a mark on the scale at 40mA.
I thought that this is international. But I also know that with respect
to teleprinters there are some CCITT norms that are internationally used
- except for the US.
It starts with ITA2 code which is the official international 5-bit telex
code. But US uses "US-TTY" which slightly differs.
Only the ASCII stuff (asr 33/35 etc) run on 20mA. But that's a totally
different thing.
Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 2/14/2017 2:24:15 P.M. US Mountain Standard Time,
hachti at hachti.de writes:
On 14.02.2017 22:18, geneb wrote:
--
Dipl.-Inf. (FH) Philipp Hachtmann
Buchdruck, Bleisatz, Spezialit?ten
Alemannstr. 21, D-30165 Hannover
Tel. 0511/3522222, Mobil 0171/2632239
Fax. 0511/3500439
philipp at hachtmann.com
www.tiegeldruck.de
UStdID DE 202668329
On Tue, 14 Feb 2017, ben wrote:
The 45 baud machines do NOT run on
20mA. They usually run on 40mA :-)
20mA is the domain of model 28, 32, 33 etc.
On 2/14/2017 6:27 AM, Alfred M. Szmidt wrote:
Dirty casual. 20mA current loop or nothing. FWIW, Mini-B connectors are on their way out, nor
USB OTG compliant.
Though agreed that they are flimsy... Why not just a type A or
something? Easy, big, and robust.
Why not mini and regular?
Ben.
PS: Add a 45.5 baud serail port. Control everything with a 5 level
TTY. :)