pdf SB4414B MANUAL SIGNALING-RINGDOWN TIE LINE UNIT Popular

Published on 01 February 2011 4116 downloads

Download (pdf, 116 KB)

SB4414B.pdf

SB4414B MANUAL SIGNALING-RINGDOWN TIE LINE UNIT

Contributed by Arthur P. Bloom and John Novack.

New User?

Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Tim Fox, Andrew Cook, Steph Kerman, Jason Anderson, Doug Duffy, Bruce Patterson, Jeremy Walters, Nick Hunseder, Ed Burnett, Ralph Meyer, Shane Young, David Brown, the Connections Museum, Paul Fassbender, Lou Maffei, Rick Thoensen, Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Remco Enthoven, Jon Kolger, Paul Ivester, and Len Hicken.

Please send a file to add your name to this list!

30 Latest Additions

1985 AT&T Phone Flyer - Service Merchandise
1993 AT&T Signature Princess 2703 Press Release
BTL 1975 - Switching Technology Chronology 1925-1975 - extract Popular
BTL 1961 - Dates in American Telephone Technology Popular
502-515-441 i2 Dec68 - 2511-type Connections Popular
DFMP-0-0 i6 Apr77 - Table of Contents - Divisions A-J Popular
82 - BTL 100-393 Jun82 - KS Specification Index Popular
BSFEP A-2 Jan76 - Traffic Theory and its Application Popular
28ca - Railway Train Dispatching Tel Systems Popular
Reminiscences of the Telephone in Boston 1877-1914 N W Lillie 1932 Popular
No 5 Crossbar - WE 5ETS for 5ESS Electronic Translation Popular
C43.151 i2 Jan60 - Auxiliary Signals ID Popular
ABC of the Telephone - Homans - 1904 Popular
52may BSTJ p443 - Experimental Electronically Controlled Auto Switching Sys - with "Essex" Subscriber Set - Annotated Popular
C30.002 i6 May55 - Transmission Zoning Popular
500-110-100 SW Add iA Mar59 - Transmission Zoning Popular
500-110-100 SW Add iB Apr68 - Transmission Zoning Popular
500-110-100 i3 Mar59 - Transmission Zoning Popular
500-110-100 i4 Feb64 - Transmission Zoning Popular
C38.003 i2 Jan58 - Transmission Zoning Popular
C38.003 i3 Mar59 - Transmission Zoning Popular
C38.003 i3 Mar59 - Transmission Zoning - black & white Popular
AB22.066.1 i1 May52 - 500 Set Description Popular
ITALTEL S62 Popular
ATT or BSP 999 Division "How to Operate" Booklets on File - Feb 2026 Popular
1989 ITT - Cortelco Telephone Apparatus Practices - Contents Popular
ITT Telephone Apparatus Practices Binder i8 vol1 - Contents Popular
Reporter Jun57 - Historic Holmdel Popular
C71.553.00 i1 Feb60 - 1A 1B Code Calling Systems - Description and Use Popular
C71.553.01 i1 Feb60 - 1A 1B Code Calling Systems - Maintenance Popular

pdf SB4414B MANUAL SIGNALING-RINGDOWN TIE LINE UNIT Popular

New User?

Recent Contributors

30 Latest Additions

Who's online