Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 8 Jan 1998 08:33:38 -0500
From:      peters@belsys.com (Peter Sleggs)
To:        freebsd-isp@freebsd.org
Subject:   Re: Remote power cycle
Message-ID:  <19980108.083338.5O6.rnr.w165w@belsys.com>
In-Reply-To: <199801080133.RAA18561@implode.root.com>

next in thread | previous in thread | raw e-mail | index | archive | help
>>David Greenman wrote:
>> 
>>>    It was quite easy for me to do, but the level of difficulty will depend
>>> on your ability to use a soldering iron and knowledge of electronics. What
>>> I did was reconfigure the hook relay so that the switch simply shorts the
>>> tip/ring wires rather than connect them to the isolation transformer. It
>>
>>Small advice on modems to use!
>>
>>Many of the newer modems do have 'solid state' switching and the tend to
>>not work! Find modem with large relay on and you should just short the
>>transformer at the line side.
>
>    Hmmm...if these modems use a "solid state relay", then it should work.
> In any case, I used a cheap 14.4K internal modem (I don't recall the
> maker) that had a normal miniature relay.

For my systems in house and a couple of other projects I've been
considering 2 projects.

1. Watchdog card, or box of some sort

2. Reset controller box
   serial input [ modem maybe ] with 8 relays to allow the reset of
   computers remotely

Is there a demand for these sorts of hardware ?
Wish lists for features ?

I will be doing the reset controller box, for my own use at some point
soon, making a small board that could be mounted in a box or in the
equipment rack. The watchdog card is a possibility but not as useful for
me, but maybe moresuitable for others.

Ideas and gotcha would be welcome.

--
Peter Sleggs   VA3SLE
Bellatrix Systems Corp.
peters@belsys.com



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980108.083338.5O6.rnr.w165w>