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Re: Anyone still make a polarity reversal central monitor system

Subject: Re: Anyone still make a polarity reversal central monitor system
From: jewellfish@xxxxxxxxx
Date: Sat, 28 Mar 2009 19:50:41 -0700 (PDT)
Newsgroups: alt.security.alarms
References: <a74fd9cf-07e5-4ff2-86bd-4146f4757b15@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>

On Mar 26, 10:05=A0pm, nick markowitz <nmarkow...@xxxxxxxxx> wrote:
> I have a small town whose monitoring box for polarity reversal
> conection =A0is dying and needs either a good used or new unit does any
> one still make these units have aprox 12 clients

Small town??  Heck most of the Chicagoland metro area is still using
r.p. for fire alarm signal transmission.  Most manufactures still make
an r.p. module  (or have some way of making it happen.)  Try finding
parts for the old Keltron tone cards...

Jewellfish

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