[GreenKeys] 2500-series phone question

[Christian R. Fandt]

I know it isn't really TTY-related, but I know there's a bunch of ex-TELCO 
folks on here.

I'm looking for a wiring diagram of a Stromberg-Carlson deskset, model 
SC-2500D built around May 1970. I have one which has been fiddled with such 
that a couple of the connections on the internal network are disconnected. 
Can hear dial tone but no dialing tones are generated onto the line. The 
network module # is: S-C 245E. Somebody had disconnected connections for 
some reason and left them dangling before I got it. I don't know whether 
the remaining connections still screwed down are correct or not.

I doubt if it is a party line-type with a specific ring filter network as 
it came out of an office environment over ten years ago as part of a leased 
line modem setup for my ex-company's old computer system. It's a 
single-line 2500-series black deskset, nothing special as far as I know. It 
should be noted that Line 2 had been connected internally but the black 
lead is one of the dangling leads while the yellow was attached. Line 1 T&R 
'should' be okay as I hear dial tone.

I want to reconnect everything so it can be used on our regular house line 
during power failures. We find those wonderful wireless handsets are 
absolutely useless when the power is out ):-/

Is there an online repository for diagrams and such TELCO-related data such 
as this? Google didn't help me much today.

Thanks in advance!

Regards,  Chris F.

NNNN

Christian Fandt,    Electronic/Electrical Historian
Jamestown, NY  USA      cfandt at netsync.net
         Member of Antique Wireless Association
         URL: http://www.antiquewireless.org/