You are here: Home > Browse the Library > BSPs (Bell System) > All BSP Categories > BSP Categories by later Division Number (by Doc #) > 500 - 529 Station Equipment > 518 Division - KTS, Video, Switching...

Check out the TCI YouTube channel here. Please subscribe!

Check here for the 2024 Telephone Shows

Folder 518 Division - KTS, Video, Switching...

Key Telephone Systems, Video Telephone Stations, and Switching Systems - Customer Equipment

Documents

Toggle Title Date Download
pdf 518-240-100 300-301-302-310-311 KSU's I.D. And Description (893 downloads) Popular Download (pdf, 3.88 MB)
pdf 518-240-100 I1 (688 downloads) Popular Download (pdf, 3.88 MB)
pdf 518-245-101 ~ 2301-Series Key Service Units ~ I.D. And Connections (790 downloads) Popular Download (pdf, 223 KB)
pdf 518-250-101 501 - 502-Type KSU I.D. - Installation (971 downloads) Popular Download (pdf, 674 KB)
pdf 518-255-401 - 550 And 551 KSU Issues 3 And 4 (1056 downloads) Popular Download (pdf, 577 KB)
pdf 518-255-401-i3-550-551-KSUs Tl (726 downloads) Popular Download (pdf, 332 KB)
pdf 518-255-401-i4-550-551-KSUs Tl (742 downloads) Popular Download (pdf, 253 KB)
pdf 518-270-101 I2 1A2 Panels - 583 & 584-types (867 downloads) Popular Download (pdf, 6.62 MB)
pdf 518-270-401 I4 1A2 Panels - 583 & 584-types - Conn & Maint (734 downloads) Popular Download (pdf, 699 KB)
pdf 518-300-100-i1-CENT KEY TELE INSTAL Tl (689 downloads) Popular Download (pdf, 2.48 MB)
pdf 518-300-413 I4 (603 downloads) Popular Download (pdf, 330 KB)
pdf 518-300-413 Tl (722 downloads) Popular Download (pdf, 122 KB)
pdf 518-300-417 I1 (691 downloads) Popular Download (pdf, 161 KB)
pdf 518-300-417 Tl (736 downloads) Popular Download (pdf, 212 KB)
pdf 518-310-113 ~ 247A KTU I.D., Installation, Maintenance (815 downloads) Popular Download (pdf, 1.10 MB)
pdf 518-310-400-i1-213B-KTU Tl (689 downloads) Popular Download (pdf, 1.23 MB)
pdf 518-310-401 I2 (692 downloads) Popular Download (pdf, 1.92 MB)
pdf 518-310-401-i2-227A B KTU Tl (804 downloads) Popular Download (pdf, 889 KB)
pdf 518-310-403 I3 KTU 232A & 232B (Interrupter) (842 downloads) Popular Download (pdf, 1.46 MB)
pdf 518-310-403 I3 Apr68 232A 232B KTU Interrupter (1079 downloads) Popular Download (pdf, 269 KB)

New User?

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

Recent Contributors

Thanks for new documents from Ed Palazzo, Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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

Who's online

We have 907 guests online