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 (948 downloads) Popular Download (pdf, 3.88 MB)
pdf 518-240-100 I1 (727 downloads) Popular Download (pdf, 3.88 MB)
pdf 518-245-101 ~ 2301-Series Key Service Units ~ I.D. And Connections (826 downloads) Popular Download (pdf, 223 KB)
pdf 518-250-101 501 - 502-Type KSU I.D. - Installation (1053 downloads) Popular Download (pdf, 674 KB)
pdf 518-255-401 - 550 And 551 KSU Issues 3 And 4 (1124 downloads) Popular Download (pdf, 577 KB)
pdf 518-255-401-i3-550-551-KSUs Tl (769 downloads) Popular Download (pdf, 332 KB)
pdf 518-255-401-i4-550-551-KSUs Tl (794 downloads) Popular Download (pdf, 253 KB)
pdf 518-270-101 I2 1A2 Panels - 583 & 584-types (921 downloads) Popular Download (pdf, 6.62 MB)
pdf 518-270-401 I4 1A2 Panels - 583 & 584-types - Conn & Maint (787 downloads) Popular Download (pdf, 699 KB)
pdf 518-300-100-i1-CENT KEY TELE INSTAL Tl (722 downloads) Popular Download (pdf, 2.48 MB)
pdf 518-300-413 I4 (636 downloads) Popular Download (pdf, 330 KB)
pdf 518-300-413 Tl (763 downloads) Popular Download (pdf, 122 KB)
pdf 518-300-417 I1 (733 downloads) Popular Download (pdf, 161 KB)
pdf 518-300-417 Tl (777 downloads) Popular Download (pdf, 212 KB)
pdf 518-310-113 ~ 247A KTU I.D., Installation, Maintenance (869 downloads) Popular Download (pdf, 1.10 MB)
pdf 518-310-400-i1-213B-KTU Tl (725 downloads) Popular Download (pdf, 1.23 MB)
pdf 518-310-401 I2 (731 downloads) Popular Download (pdf, 1.92 MB)
pdf 518-310-401-i2-227A B KTU Tl (836 downloads) Popular Download (pdf, 889 KB)
pdf 518-310-403 I3 KTU 232A & 232B (Interrupter) (929 downloads) Popular Download (pdf, 1.46 MB)
pdf 518-310-403 I3 Apr68 232A 232B KTU Interrupter (1136 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 1803 guests online