10BaseT Friendlynet media adapter

From: Tothwolf <tothwolf_at_concentric.net>
Date: Fri Feb 8 15:02:32 2002

On Fri, 8 Feb 2002, Chris wrote:
> On Fri, 8 Feb 2002, Tothwolf wrote:
>
> >Speaking of Asante Friendlynet stuff, I've got a few inline 10Base-2
> >adapters that I have no information on. Each has 2 BNC and 1 RJ45
> >connectors on them. I'm guessing these use some sort of special cable on
> >the RJ45 port to connect to the computer? I found a cable loose in another
> >box that has an AAUI connector on one end, and an RJ45 plug on the other.
> >Would this be the type of cable used by them?
>
> That sounds like the Farallon transceivers. They had an AAUI to RJ45
> cable, and then a box that plugged into that RJ45 end. The box would
> then go to whatever port type you were using.
>
> So yes... that cable should go to the box's RJ45 port (which should be
> labled as Computer, with the 10b-2 side labeled as Network... at least
> the 10b-T ones I have are labeled that way)

The transceivers and cable are not labeled on the ones I have. Farallon
was really good about labeling their transceivers, while most companies
didn't bother.

> I have always wanted to just plug that AAUI to RJ45 cable into a hub
> and see if it works without the box... but I have never been willing
> to risk frying something.

That won't work. AUI ports are for connecting to a transceiver, and
without one, there isn't any way to talk 10Base-T. If you look at older
combo ethernet cards, you can often pick out the 10Base-2 and 10Base-T
ethernet transceiver chips and the 5VDC to 9VDC voltage converter module.
External transceivers usually contain nothing more than a transceiver
chip, voltage regulator or converter, a few support components, and the
connectors.

Speaking of transceiver chips, anyone have a loose 8392 chip laying around
that they don't need? I don't need badly enough to steal one from a junk
board, but I'd like to replace a dead one on an old NIC I have around here
someplace. I found some 8392 chips locally, but the guy seems to think he
can get $16-18ea for them (same place that wanted a fortune for 1771
chips, see the thread from last Nov). Failing that, anyone know of a
dealer selling those chips at *sane* prices? Best I could tell,
$0.20-$0.35 was the going rate for single chips when they were still
available in production volumes.

-Toth
Received on Fri Feb 08 2002 - 15:02:32 GMT