Still more PBX stuff.

From: Sellam Ismail <dastar_at_ncal.verio.com>
Date: Fri Aug 20 14:54:19 1999

On Fri, 20 Aug 1999, Daniel A. Seagraves wrote:

> No, I don't think it did, but I'm pretty sure it clicked once when I called
> the console. And dialing 9 made it click a couple times.

That's normal for outbound calls. That's the relay going "off-hook" on
the trunk side.

> Not sure how it determined it, but it sensed the CO wasn't there.
> (Minor Network Alarm is what the panel indicated.) Probably what
> you said.

Well, generally a minor alarm on a switch can mean a lot of different
things. How do you know for sure it is because you don't have any trunks
connected to it? Sometimes a minor alarm is triggered by default after a
power fail (or any time the power is removed).

The switch could be capable of detecting the presence or absence of live
trunks on the ports where it's programmed to have trunks. It simply tries
to sense any current on those ports.

> The console seems to have an internal-only Caller ID, because when I
> called the console, there was a small LED display that lit up with the
> extension number. I know it's the extension number because if I dial
> it at a dial tone, it rings the extension I dialed.

Aha. That makes sense.

> And now for the next screw: I need the MAAP device. Almost all of the
> administration-type functions need it. I'm going to go back to the
> site and see if I can find it, but I'm pretty sure I got everything
> that was there. It does look (from the diagrams in the schematics
> book) like the little terminals the DEC F-S people had (the one
> pictured in the RA81 manual, at least), but I can't find a pinout for
> the connector for it. The connector for the MAAP is on the breaker
> panel - Maybe if I see how many lines are in the back of it... Maybe
> if I'm really lucky it's just a serial device! -------

Probably. You might want to try fishing for clues on comp.dcom.telecom
and comp.dcom.telecom.tech.

Sellam Alternate e-mail: dastar_at_siconic.com
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Received on Fri Aug 20 1999 - 14:54:19 BST

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