How to connect The elk p212s power supply to the M1DBH Data bus hub

Pcarfan

Member
The instructions that came with the p212s only has instructions to connect it to the M1 main board's 4-wire data bus. But, I am using the M1DBH data bus and there are no instruction to connect it to that. Couldn't I do that?
 
Is it the same as that of keypads? Red to brown, Black to Wht/Brn, Green to Orange and Green, white to Wht/Org and Wht/Grn.  If I could connect the p212s via the M1DBH, I'm sure its the same, but just want to be 100% certain.
 
Thank you!
 
I would look at the Elk M1 install manual and/or the DBH manual to confirm what color wire equals what function and match them up with the correct terminal on the 212. If the 212 is powering other data bus devices down stream than you would only wire in the GND, Data- and Data+ wires coming in from the M1. Don't connect the M1 Databus +12 power and the 212 +12v power wires.
 
I don't use a DBH unfortunately, but you can figure it out.
 
It would be the same if you match up the function of each wire - so the terminals on the P212S would be the following:
  • SPARE: park your BROWN here
  • NEG: Connect the BROWN/WHITE
  • M: Jumper to the NEG terminal along with the BROWN/WHITE wire
  • A: connect both the ORANGE and the GREEN wire
  • B: connect both the ORANGE/WHITE and the GREEN/WHITE wire
 
The 212 gets hooked up just like a keypad from the bus or retrofit board EXCEPT the +12V feed gets landed on the "spare" terminal. That is only to provide a convenient place to land the wires, but at whatever data device is before the 212, you could negate the connection of the +12 feed to the 212.
 
Again, this is another reason why I see the DBH's as pointless. Doesn't save any work and makes connection of ancillary equipment, supplies and use of KP zones and outputs more difficult.
 
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