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    • Home  / Product Manuals & Documentation
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    ACNC/TotalPlex DP29-SW/IM — Telephone Keypad Relay Trigger Cut Sheet

    August 31, 2026 2 min read

    Cut sheet for the DP29-SW/IM Telephone Keypad Relay Trigger, combining a door strike controller and intercom module for DoorBell Fon systems.

    💾 Download Original PDF
    Full text manual (for reference)

    Cut sheet for the ACNC/TotalPlex® DP29-SW/IM Telephone Keypad Relay Trigger — a single device combining two former products (DP29-SW and DP29-IM) that modifies your telephone keypad to enhance a DoorBell Fon door entry system, selectable via jumper settings.

    Description

    • DP29-SW (Door Strike Controller): An Outbound Relay Trigger Controller that provides dry contact closure off the star (*) key, or another key selected via DIP switch S1 — great for triggering any electrical device from your telephone keypad.
    • DP29-IM (Intercom Module): Converts all phones in your home or office into an intercom system using your existing phones and wiring. No new wiring, additional connections, or programming required.

    Features

    • Compact footprint mounts in any structured wiring cabinet or on a wall
    • Jumper 4 selects between NO (normally open) and NC (normally closed) switch behavior (default: NO)
    • S1 DIP switch selects which keypad button triggers the device (default: the * key)
    • No external power source required
    • Simple series wiring with the Door Station
    • Jumpers 5 and 6 can be removed to switch the device between DP29-SW and DP29-IM modes

    DP29-SW Specific

    • Operates any electrical device at 1.0A @ 125VAC or 2.0A @ 30VDC
    • Provides 3+ seconds of dry contact using the selected phone key (holding the key extends contact time)

    DP29-IM Specific

    • Intercom call initiated by pressing a keypad button
    • No programming required; compatible with wireless phones
    • Only one unit needed to operate all phones in the system

    Terminal & Jumper Reference

    Terminal/Jumper DP29-SW Function DP29-IM Function
    Terminal 1 Connect to the Door Station Controller Connect Door1 to the DOOR 1 terminal of the Door Station Controller
    Terminal 2 Connect to the Door Station Do not connect
    Terminal 3 Connect to the electronic lock or door strike Connect Door2 to DOOR 2 of the Door Station Controller
    Jumper 4 Selects between NO and NC switch behavior (default: NO)
    Jumpers 5 & 6 Remove both to switch the device from DP29-SW mode to DP29-IM mode
    S1 DIP switches Select which keypad button triggers the device (default: up, down, up, up = * key)

    Applications

    • DP29-SW: Opening electronic gates and locks; multiple DP29-SW units can be used for multiple door stations.
    • DP29-IM: Converts an existing home or office phone network into a full intercom system.

    Specifications

    • Power: None required (device draws power from the phone line system)
    • Dimensions: 5.750" x 2" x 0.875" (base); 6" x 2.188" x 1.750" with dust cover; 6.875" x 2" base with butterfly clips

    ACNC/TotalPlex® — HomePhone.com. 1989 University Lane (Unit H), Lisle, IL 60532. Tel: (630) 241-2800 / Fax: (630) 241-2820.