Re: [mh] Vista-20p or Vista-21ip

Excellent information, Wayne. That's just what I was looking for. Thanks 
for posting!
            -Brian M.

On 2/7/22 11:58 AM, Wayne Gatlin wrote:
> I currently have a vista 20p, but I had a 21ip in the past. I would 
> suggest the 20p because with the 21ip you have to replace the whole 
> board when the GSM board gets too old and the providers decom the 
> supported tech IE: 2g. I don't know why, but this is what happened to 
> me with my last 21ip.  With the 20p you can get an upgraded chip with 
> a newer version if required and use an external GSM module. If you 
> want to have alarm monitoring service over your wired internet 
> connection only (no GSM or dial up over POTS line) or you can use the 
> wired connection as a backup, then the 21ip is the way to go. You 
> can't do anything else with the wired IP connection, it will only 
> communicate with the total connect service.
>
> To interface with MH, you can get one of the AD2x interface modules 
> which connects like another key pad. This module will work with either 
> the 20p or 21ip and I assume many more. I wrote a good bit of the AD2x 
> interface MH code, I have been using this setup for years, and it 
> works well. I currently have the AD2pHAT on a Pi mounted in the alarm 
> panel and the Pi is just running ser2sock powered by the "DC Power 
> Adapter", but it looks like they have an AD2IOT which would probably 
> be better suited.
>
> -Wayne
>
> On Mon, Nov 29, 2021 at 11:03 PM Brian M 
> <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     Does anybody have any recent experience connecting a Honeywell/Ademco
>     Vista-20p or Vista-21ip alarm panel (alarm sensors, smoke sensor,
>     etc.)
>     to MH? The 20p and the 21ip are the same board except that the
>     21ip has
>     an ethernet jack and monitoring is done via the network connection
>     (instead of serial, phone line, cell tower, etc.). I'd like MH to be
>     notified when a sensor fires. Apparently I can tell the alarm
>     system to
>     use an IP address of my choice for monitoring, but I can't find
>     any docs
>     on the network protocol is.
>
>     I haven't bought the Vista yet, so I'm open to other products as
>     well,
>     but I don't want it to rely on outside services -- all in-house.
>
>     Thanks everyone.
>
>                                -Brian M.
>
>
>
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