Anyone have a Focus EtherLAN SC-T?

If Focus is the name of the company and they're out of business, maybe you could find an archived version of their website at www.archive.org and hopefully find something?

Alternatively, you really just have to use common sense and logic and just "figure it out".  Does one of the pins connecting to the power jack go to ground?  Can you trace one side using a dmm on diode mode to see if maybe one pin goes to the plus side of an electrolytic cap?  If so that's the positive side, etc...

As for voltage, who knows.  Check for the chip numbers on the board and look up their datasheet.  Usually voltages in are mentioned, and it might give you a clue.

It's time you did some detective work.  Good luck.

Thanks for the tips.

I did look at the Wayback machine and found their website and mention of the card but there was no documentation posted.  There was a link to their drivers but the link pointed to an FTP site that doesn't work (and Wayback doesn't archive).  I think I found the drivers in Mac Driver Museum here: http://www.3rz.org/mirrors/macdrivermuseum/network.shtml.

I cracked it open last night and the two wire go to two locations marked "AC IN".  I will certainly need to do some more detective work because if it's AC, the universal wall-wart I have is no good.

I'll try to post a pic later tonight if nobody has the answer.

Thanks.

This guy would know:

http://homepage2.nifty.com/tamaru/

But I don't know if he speaks English.  Probably.  Wouldn't hurt to ask.

Hi Charlieman,

I can't see your reply but I did get it via email (probably an issue because of the the downtime).

You stated:

olePigeon said:

I have one, complete in box with the original power supply (UK voltage).

The EtherLan unit is W 140mm H 40mm L 185mm, black, with utp and AUI ports on the back.

The power supply is rated 12V 19.2VA. Mutlimeter test without load is centre negative.

--

Focus Enhancements acquired two designs from Nuovotech (Nuovolink SC and SC-T) along with some other networking products. The design originally came from Compatible Systems (who sold only the Ether+ SCSI with AUI). The power supplies may not be the same for these.

Click to expand...

Is the 12V AC or DC?

Thanks for the reply.

12V DC, centre negative. I tested with the probes in both directions and it definitely appeared as DC.

Thanks Charlieman,

I appreciate it but mine appears to be center positive.  The center lead goes to an internal fuse that, I'm pretty sure, is positive.  It's also a black wire as opposed to a blue one on mine.

Here's a picture of my board:

You're right, snuci. Under load, the power supply measures ~15V AC -- over the back of the supply connector.

My board appears to be a little older than yours but the layout is the same. The chip (EPROM?) labelled SC/SCT on yours is labelled Focus on mine. I also have Compatibility Systems Ether+ silkscreened on the board adjacent to the big blue capacitor.

Thanks for the reply, Charlieman.

So the power supply has the 12V (AC) 19.2 VA markings on it?  I was pretty surprised when these didn't have any sort of label on them to indicate the power consumption so I figured they would be on the power supply.

Thanks.