Elk M1DBH M1 Databus Hub
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Elk M1DBH M1 Databus Hub

Databus Hub for M1 Security/Automation Control Systems
  • Hub for connecting additional keypads or zone expanders to M1 and M1Gold panels
  • Up to 9 databus connections
  • Interconnect multiple units if more than 9 data lines are needed
  • Works with RJ45 equipped cat5 and cat6 cables

Item #: 12832

Expected in stock 09-22-2014

Frequently Bought Together:

Price For Both: $145.38

  • Details
  • Specs
  • Reviews
  • Manuals
  • What's Included
  • Manage the databus wires in your M1 Gold or M1 Kit control panel with an M1 Databus Hub. When you're ready to expand your system and add more LCD keypads or zones, the M1 Databus Hub designed to makes connections easy. The M1 Databus Hub accepts up to nine RJ45-equipped cat.5 or cat.6 cables, and connects the data A & B lines to and from devices so the databus may be terminated properly. Looking to attach more than nine cables? No problem: two or more units may be interconnected if more than 9 data lines are required.

    The M1 Databus Hub is pre-assembled on a 3" structured wiring plate, which mounts inside the M1 or M1Gold panel. An RJ45 terminating resistor plug is included; RJ45 8 Conductor Plugs are sold separately. The M1, M1Gold, keypads and the 16 Zone Input Expander are all sold separately.

    The data A & B lines are connected to each device (keypad, zone expander, etc.) along with a "return" wire so that the data returns back to the M1 Databus Hub, which is then used to feed the next device. Effectively, this puts the data lines in a series circuit so that the control communicates with each device in a progression or "daisy chain" fashion, the end of which uses the included resistor terminating plug. This plug places a 120-Ohm resistor across the A & B data return lines coming from the last wired device, effectively terminating the bus.

  • Specifications

    Manufacturer: Elk
    Manufacturer Product No.: M1DBH
    Mounting Plate Dimensions: 6.5" x 3" x .5"
    Circuit Board Dimensions: 5" x 2.5"
    Input Connections: Elevator screw terminals
    Output Connections: 9 RJ 45 8-Pin jacks
    Impedance: 120 ohms
    Maximum Total Length: 4000 feet
    Warranty: 2 years, limited

  • Reviews 1 - 10 of 13

    1. 1
    2. 2
    Review of 12832 Review by DO
    Review of 12832

    It works. It's boring but it does work as described.

    Posted on 6/11/2014

    Review of 12832 Review by WILFRIDO
    Review of 12832


    Posted on 3/15/2013

    Review of 12832 Review by DALE
    Review of 12832

    Worked like a champ

    Posted on 9/4/2011

    Review of 12832 Review by CHRISTINE
    Review of 12832

    If you have multiple keypads, this item makes installation much easier. It essentially changes the wiring layout from daisy chain to star, allowing direct runs from the main panel to each keypad. Also works with the Elk wireless expander.

    Posted on 8/10/2011

    Review of 12832 Review by JONATHAN
    Review of 12832

    Easy to install and made it simple to connect my multiple home runs keypads.

    Posted on 7/2/2010

    Review of 12832 Review by JOSEPH
    Review of 12832

    works great. little overpriced.

    Posted on 6/22/2009

    Review of 12832 Review by DAVID
    Review of 12832

    Easy to install and makes adding multiple keypads a breeze. You can use this to add zone expanders also.

    Posted on 5/11/2009

    Review of 12832 Review by MICHAEL
    Review of 12832

    This hub makes connecting multiple data bus devices very easy.

    Posted on 1/3/2009

    Review of 12832 Review by Nathan
    Review of 12832

    I thought this would be great, I have two keypads, three expansion modules and an Ethernet bridge. I spent more time debugging this one board, before I found out the third port was dead then I did installing the rest of the hardware.

    Posted on 12/7/2008

    Review of 12832 Review by THOMAS
    Review of 12832

    Used the Database Retrofit Hub instead, but Smarthome does not sell that component

    Posted on 12/15/2007

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    * Required Fields

    • 1x - M1 Databus Hub M1DBH
    • 1x - Resistor Terminating Plug
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