If you are using an external relay the load shouldn't matter to the SiteMonitor 
at all. The load would only matter for the extrenal relay itself. The 
SiteMonitor doesn't supply power accross the relay output so you would have to 
supply the external relays coil voltage across the site monitor contacts. You 
would only have to ensure that your coil volts and amps don't exceed the Site 
Monitor rating. And that should work just fine.

-- 
Christopher Tyler 
MTCRE/MTCNA/MTCTCE/MTCWE 
Total Highspeed Internet Services 
417.851.1107

----- Original Message -----
From: "Bill Prince" <part15...@gmail.com>
To: "Motorola III" <af@afmug.com>
Sent: Tuesday, April 10, 2018 11:38:29 AM
Subject: Re: [AFMUG] Sitemonitor Question with Relay

The typical solution with a light-duty relay is to use it to control a
heavier relay that carries the actual load.

-bp

--
bp
part15sbs{at}gmail{dot}com

On Tue, Apr 10, 2018 at 9:24 AM, Paul McCall <pa...@pdmnet.net> wrote:

> Yes, we know that, and have used it on lighter loads.  But, apparently
> there is a challenge on a heavier load as we described below.  Wanting to
> know if we can do what we want and maybe we just have the wrong external
> relay
>
> -----Original Message-----
> From: Af <af-boun...@afmug.com> On Behalf Of Christopher Tyler
> Sent: Tuesday, April 10, 2018 12:20 PM
> To: af@afmug.com
> Subject: Re: [AFMUG] Sitemonitor Question with Relay
>
> Yes, there is a relay output on the siteMonitor II that you can trigger
> via SNMP or web interface.
>
> --
> Christopher Tyler
> MTCRE/MTCNA/MTCTCE/MTCWE
> Total Highspeed Internet Services
> 417.851.1107
>
> ----- Original Message -----
> From: "Paul McCall" <pa...@pdmnet.net>
> To: af@afmug.com
> Sent: Tuesday, April 10, 2018 11:11:20 AM
> Subject: [AFMUG] Sitemonitor Question with Relay
>
> My service manager seems to be struggling with using the Sitemonitor Relay
> contact to trigger a 48 Relay that we want to use to power cycle the whole
> tower if necessary.  So, Packetflux states that the Relay control is
> maximum. 30v 1amp.  So a little more than half the amps at 48v.
>
> So, in the past (lighter loads on towers) we used this to trigger an
> external relay and "open" the ground to the main power feed going up the
> tower.  At 48v, we sometimes are around 2amp on the bigger towers, some
> perhaps a bit higher still.  (with a 48v relay).
>
> We should be able to use the Sitemonitor to somehow accomplish it.
>
> Can anybody comment on this?
>
> Thanks!
>
> Paul McCall, President
> PDMNet, Inc. / Florida Broadband, Inc.
> 658 Old Dixie Highway
> Vero Beach, FL 32962
> 772-564-6800
> pa...@pdmnet.net<mailto:pa...@pdmnet.net>
> www.pdmnet.com<http://www.pdmnet.com>
> www.floridabroadband.com<http://www.floridabroadband.com>
>
>
>

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