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

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

Documents

pdf 518-240-100 300-301-302-310-311 KSU's I.D. And Description Popular

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518-240-100 300-301-302-310-311 KSU's I.D. and Description.pdf

pdf 518-240-100 I1 Popular

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518-240-100_I1.pdf

518-240-100 I1

Contributed by Russ Kirk.

pdf 518-245-101 ~ 2301-Series Key Service Units ~ I.D. And Connections Popular

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518-245-101 ~ 2301-Series Key Service Units ~ I.D. and Connections.pdf

pdf 518-250-101 501 - 502-Type KSU I.D. - Installation Popular

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518-250-101 501 - 502-Type KSU I.D. - Installation.pdf

pdf 518-255-401 - 550 And 551 KSU Issues 3 And 4 Popular

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550 and 551 KSU Issues 3 and 4.pdf

518-255-401 - 550 And 551 KSU Issues 3 And 4
Contains both Issue 2, April 1966 and Issue 4, March 1968.

pdf 518-255-401-i3-550-551-KSUs Tl Popular

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518-255-401-i3-550-551-KSUs_tl.pdf

pdf 518-255-401-i4-550-551-KSUs Tl Popular

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518-255-401-i4-550-551-KSUs_tl.pdf

pdf 518-270-101 I2 1A2 Panels - 583 & 584-types Popular

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518-270-101_I2_Jun66_1A2_Panels_583_584_Types.pdf

518-270-101 I2 1A2 Panels - 583 & 584-types
June 1966.  Contributed by Steve Cichorsky.

pdf 518-270-401 I4 1A2 Panels - 583 & 584-types - Conn & Maint Popular

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518-270-401_I4_Jan68_1A2_Panels_583_584_Types_ConnMaint.pdf

518-270-401 I4 1A2 Panels - 583 & 584-types - Conn & Maint
January 1968.  Contributed by Steve Cichorsky.

pdf 518-300-100-i1-CENT KEY TELE INSTAL Tl Popular

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518-300-100-i1-CENT_KEY_TELE_INSTAL_tl.pdf

pdf 518-300-413 I4 Popular

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518-300-413_I4.pdf

518-300-413 I4
[Extracted from KSSM, i6, July 1980 by Sam Etler]

pdf 518-300-413 Tl Popular

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518-300-413_tl.pdf

pdf 518-300-417 I1 Popular

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518-300-417_I1.pdf

518-300-417 I1
[Extracted from KSSM, i6, July 1980 by Sam Etler]

pdf 518-300-417 Tl Popular

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518-300-417_tl.pdf

pdf 518-310-113 ~ 247A KTU I.D., Installation, Maintenance Popular

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518-310-113 ~ 247A KTU I.D., Installation, Maintenance.pdf

518-310-113 ~ 247A KTU I.D., Installation, Maintenance

BELL SYSTEM PRACTICES
SECTION 518-310-113
Plant Series
Issue 1, February 1968
AT&TCo Standard

247A KEY TELEPHONE UNIT IDENTIFICATION, INSTALLATION, AND MAINTENANCE

pdf 518-310-400-i1-213B-KTU Tl Popular

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518-310-400-i1-213B-KTU_tl.pdf

pdf 518-310-401 I2 Popular

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518-310-401_I2.pdf

518-310-401 I2
[Extracted from KSSM, i6, July 1980 by Sam Etler]

pdf 518-310-401-i2-227A B KTU Tl Popular

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518-310-401-i2-227A_B_KTU_tl.pdf

pdf 518-310-403 I3 KTU 232A & 232B (Interrupter) Popular

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518-310-403_I3_Apr68_232A_232B_KTU_Interrupters_ ID_Connections.pdf

518-310-403 I3  KTU 232A & 232B (Interrupter)
April 1968. Contributed by Steve Cichorsky.

pdf 518-310-403 I3 Apr68 232A 232B KTU Interrupter Popular

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518-310-403_i3_Apr68_232A_232B_KTU_Interrupter.pdf

518-310-403 I3 Apr68 232A 232B KTU Interrupter

Contributed by John Novack. 

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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.

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