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Re: USB support for UPSes
On Sunday, 15 February 2004 at 20:35:19 +0000, Chris Howells wrote:
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> On Sunday 15 February 2004 19:18, you wrote:
> > I've buy an Back-UPS CS 500 and I wait now that APC send me the free
> > serial cable ordered on the web.
> Note that whilst they will send you a free serial cable that does basic stuff
> it doesn't provide any of the extended information that would have been
> available via the USB information -- basically all the serial cable can do is
> say whether the UPS has power or not.
> There are however instructions on the web to construct a serial cable yourself
> which I believe can give as much information as the USB one does -- IIRC it
> is linked to from the apcupsd web site.
> I haven't had a go at this yet but I belive it should just be a matter of
> buying a serial cable, snipping on end of, and crimping an RJ-45 connector on
> the other end.
Thank you Chris for the advice.
I've found this page on the Apcusb web site:
I'm going to make a serial-RJ45 cable from this diagram. But somebody
can confirm me that this wiring in functional and is equivalent to the
USB-RJ45. The USB cable coming with my UPS is apparently a new one with
940-0127C (note C and not (A or B))
After Googling: Your search - 940-0127C - did not match any documents.
The RJ45 of my USB cable looking at the end of the connector :
|0987654321| 0 for the tenth pin
The pins 10, 9, 7, 4 and 1 are connected. Here are the colors :
10 - green
9 - white
7 - black
4 - blue
1 - red
I know that it's not an OpenBSD question, but somebody can lead me in
the good direction to make that custom cable.
Thanks in advance.