You are here: Home > Browse the Library > BSPs (Bell System) > BSP Categories by later Division Number (by Doc #) > 660 - 984 Vehicles, Supplies, Gen'l > 981 Division - Equip on Customers' Premises > 981-210-100 I2, Switching System No. 309 (AUTOVON)

Check out the TCI YouTube channel here. Please subscribe!

Check here for the Upcoming Telephone Shows

pdf 981-210-100 I2, Switching System No. 309 (AUTOVON) Popular

By 2115 downloads

Download (pdf, 483 KB)

981-210-100_I2_Apr69_SS309_Autovon_Desc.pdf

981-210-100 I2, Switching System No. 309 (AUTOVON)
April 1969.  General Description of the No. 309 Switching System.  Comprised of equipment required at a 4-wire subscriber station to enable the customer to establish both voice and data transmission with other stations on switchboard services such as the AUTOVON (AUTOmatic VOice Network).

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

Who's online

We have 792 guests online