We have moved at community.getvera.com

Author Topic: Connecting Powermax to Vera 3 using USB to TTL Serial Console cable  (Read 1487 times)

Offline AlpineMan

  • Newbie
  • *
  • Posts: 2
  • Karma: +0/-0
I have an old Visonic Powermax alarm panel: http://www.visonic.com/Data/Uploads/PowerMax_English_User_Guide_DE5450U7.pdf

I want to connect this panel to my Vera 3.  On the back of this unit, it has a 4 pin connector (please see attached photo).  I believe just like the new Powermax panels, only 3 pins are used: TXD, GND, and RXD.  And looking at the photo, indeed only 3 pins are connected to the board.

I bought this USB to TTL serial console cable from ebay: http://www.ebay.com/itm/121191683482

Thing is, I do not know the pin out of the Powermax panel to connect the above cable.  Anyone know it?  I also just noticed that it says "RS-232" on the panel...and the cable I bought is TTL which is 3.3volts.  Will this work instead of purchasing the Powermax RS232 module, which is much more expensive and very hard to find? 

Thanks!

Offline JsChiSurf

  • Jr. Member
  • **
  • Posts: 81
  • Karma: +4/-0
Did you ever get this working?  I have the same (per your PDF linked) Powermax panel as you do, and just picked up a Veralite, and am wanting to know if I am able to interface with the panel or not.

Thanks.

Offline AlpineMan

  • Newbie
  • *
  • Posts: 2
  • Karma: +0/-0
Unfortunately, I haven't had the opportunity to try it out yet.

Offline JsChiSurf

  • Jr. Member
  • **
  • Posts: 81
  • Karma: +4/-0
Re: Connecting Powermax to Vera 3 using USB to TTL Serial Console cable
« Reply #3 on: June 09, 2014, 10:57:52 am »
Ah, bummer, I hoping not to have to upgrade my panel (happy with it), but cannot find the 4-pin rs232 adapter for the original powermax anywhere, and hoping to roll my own solution if need be.