Re: protocol for Protect R/TUs

["Jackcsg" <nospam@xxxxxxxxxx>]

<jbaird@xxxxxxxxxxxxxxxxxxx> wrote in message
news:1110722886.163181.176140@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> I have been asked by a customer to interface to some old Protect
> emergency call systems, and I am trying to determine what protocol
> these things use to communicate with the central station.  Does anyone
> have any ideas?  At this point, I have not physically seen the systems
> so I don't know model numbers etc.  All I know is that there are 3
> vintages of system installed.  I am guessing that it is some pulse
> format, but I don't know if it a 'standard' format or some proprietary
> format.  Any help is appreciated.
>
> John

I think it may be an ITI protocol, but I could be wrong. It's definately
proprietary.