pdf 991.006.01 I1-se Popular
By Anonymous 1242 downloads
991.006.01_I1-se.pdf
PBX Systems - Range Chart - Trunk and Station Conductor Loop
Ranges for PBXs Connected To No. 1 Crossbar Central Offices Having
1300-Ohm Subscriber Conductor Loop - 400-Ohm Talking Battery Feed
Circuit - AC-DC or Superimposed Ringing (84-88V AC Component) - Office
Voltage of 48V (Floating), Issue 1, 1960-03-01
New User?
Read the articles under "Introduction" in the black menu bar above.
Recent Contributors
Thanks for new documents from Lou Maffei, Rick Thoensen. Paul Fassbender, Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, and Jeff Lamb.
Please send a file to add your name to this list!
Who's online
We have 1113 guests online