RE: [OT] APC UPS Cable Spec?

[Frost Neil <Neil.Frost@xxxxxxx>]

>From the APC web site:

This document provides the pin-outs on the DB-9 port for the Smart-UPS
product line. 

  Answer 
  The following is a text representation of the computer interface
port on
the Smart-UPS 700s, 1000s, 1400s, 2200s, 3000s, 5000s. (Extended-Run,
Rackmounts, 208Vac and International models are also included). 

There are occasions when one may need the following information for
special
applications.

Note: The information below does not provide detailed monitoring or
control
of the UPS. To do so, PowerChute PLUS, PowerChute Business Edition, or
an
APC SmartSlot Accessory (where applicable) must be used. APC PowerChute
software is proprietary software designed to communicate solely to an
APC
UPS.

Computer Interface Port
The computer interface port has the following characteristics:

Pins 3, 5, and 6 are open collector outputs which must be pulled up to
a
common referenced supply no greater than +35 Vdc. The transistors are
capable of a maximum noninductive load of 25 mAdc. 

Pin 4 and 9 are the common reference for these signals and are also
connected to the chassis of the UPS.

Pin 2 generates a low to high transition at RS-232 levels when the UPS
signals that it is on-battery. Pin 2 is also the RS-232 data output
(TXD).

The UPS will shut down when a high RS-232 level is sustained on pin 1
for
4.5 seconds. The UPS responds to this signal only after a delay and during
a
power utility failure (when the UPS is operating on battery). Pin 1 is
also
the RS-232 data input (RXD).

Apply a momentary (approximately 1 second) high RS-232 level to pin 7
to
turn on the UPS and any attached loads. A momentary low turns off the
UPS
and its load. Pin 7 should be unconnected normally.

Unregulated 24 Vdc is available at pin 8. Maximum available current is
200
mA. 

This supply is not available in some states of the UPS.

The following Smart-UPS models have slightly different specifications. 

SU420NET, SU620NET, SUVS420, SUVS650, SUVS1000, SUVS1400, PS250, PS450.

Pins 3, 5, and 6 are open collector outputs which must be pulled up to
a
common referenced supply no greater than +40 Vdc. The transistors are
capable of a maximum noninductive load of 25 mAdc. 

Use only Pin 4 as the common.

Pin 2 generates a low to high transition at RS-232 levels when the UPS
signals that it is on-battery. Pin 2 is also the RS-232 data output
(TXD).

The UPS will shut down when a high RS-232 level is sustained on pin 1
for
4.5 seconds. The UPS responds to this signal only after a delay and during
a
mains failure (when the UPS is operating on battery). 

Pin 1 is also the RS-232 data input (RXD).
Apply a momentary (approximately 1 second) high RS-232 level to pin 7
to
turn on the UPS and any attached loads. A momentary low turns off the
UPS
and its load. 

Pin 7 should be unconnected normally.

Note: Look closely at the serial port on the Smart-UPS to determine the
pin
numbers.


-----Original Message-----
From: Dave McLaughlin [mailto:dave@xxxxxxx]
Sent: 17 October 2002 10:49
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] [OT] APC UPS Cable Spec?


This is the case with the dumb units as they only toggle the outputs to
indicate status.

The Smart UPS's from APC use a standard 3 wire serial cable though.

Dave..

----- Original Message -----
From: "Frank Mc Alinden" <armagh@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Thursday, October 17, 2002 10:39 AM
Subject: Re: [ukha_d] [OT] APC UPS Cable Spec?


> Ooops Thanks Des
>                            
Looks like they are just using the handshaking
> pins and no serial comms at all???
>
> Frank
>
> ----- Original Message -----
> From: "Des Gibbons" <des@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Thursday, October 17, 2002 7:34 PM
> Subject: RE: [ukha_d] [OT] APC UPS Cable Spec?
>
>
> > http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q102711&
> >
> > I assume that applies to your model too, but can't be 100%
sure
> >
> > Des




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