Folder SD-CD-65680-505-506-507-Switchboards

Applicable BSPs can be found in the 536-xxx-xxx Division

Documents

pdf CD-65680-01 i12D - 507A, 507B PBX (cropped and OCRed) Popular

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CD-65680-01I12.pdf

CD-65680-01 i12D - 507A, 507B PBX (cropped and OCRed)

Issue 12D.  PBX Systems No. 507A and 507B Station Line, Trunk, Connecting, Telephone, Ringing, Buzzer and 2-way Ringdown Tie Trunk Circuits arranged for use with manual or dial central offices.

This contains a concise operational description for outgoing calls and incoming calls.

Contributed by John Novack.

pdf CD-65680-01 i13D - 507A, 507B PBX Circuit Descriptions Bc Popular

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CD-65680_507_Circuit_Descriptions_bc.pdf

CD-65680-01 i13D - 507A, 507B PBX Circuit Descriptions Bc

Issue 13D.  507A (3-CO trunk, 7-station) & 507B (5-CO trunk, 12-station) Cordless Common Battery PBXs.  Includes Description of Operation.

pdf CD-65733-01 507 Auto Tie Trunk Bc Popular

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CD-65733-01_507_Auto_Tie_Trunk_bc.pdf

pdf Div B Section 3 507A Page 5 Bc Popular

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Div_B_Section_3_507A_Page_5_bc.pdf

pdf Ringdown Tie Trunk Ideas Bc Popular

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Ringdown_Tie_Trunk_Ideas_bc.pdf

pdf SD-65680-01 i12 - 507A, 507B PBX Popular

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SD-65680-01I12.pdf

SD-65680-01 i12 - 507A, 507B PBX

Issue 12.  Contributed by John Novack

pdf SD-65680-01 i13 - 507 PBX Schematics Bc Popular

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SD-65680_507_Schematics_bc.pdf

SD-65680-01 i13 - 507 PBX Schematics Bc

Issue 13.  507A (3-CO trunk, 7-station) & 507B (5-CO trunk, 12-station) Cordless Common Battery PBXs

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.

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