Systems Enhancement Corporation Power Administrator 800

From: Tothwolf <tothwolf_at_concentric.net>
Date: Thu Jun 5 15:17:01 2003

On Thu, 5 Jun 2003, Feldman, Robert wrote:

> It might be that the DE-9's don't have a standard PC serial pinout. At
> work, we have a UPS that uses a DE-9 for programming, but the pinout on
> the cable (a 940-0024C; Googling produces a number of hits) is
>
> Female Male
> 1-4
> 2------------2
> 3------------1
> 5------------6
> 6 NC
> 7-8
> 9 NC

Let me guess...APC? :)

Their ports are very fun, since if you plug in a standard serial cable,
and open the port, it can turn off the UPS. The UPS' port supports both a
dump-mode DTR/RTS/etc signaling as well as a smart-mode.

The cable above is their "smart" cable. The 1-4 and 7-8 connections are
also not needed if you are not using 3rd party software such as NUT, as
they are just loop back connections.

-Toth
Received on Thu Jun 05 2003 - 15:17:01 BST