APC SU1400XLT User Manual download pdf (Page 72)

advantage that in a power fail situation, if the killpower function described above does not work, the

computer will continue to draw down the batteries and the UPS will hopefully shutoff before the power is

restore thus permitting an automatic reboot.

Nevertheless some people prefer to do a full power down. To do so, you might want to get a copy of

PsShutdown, which does have a power down option. You can find it and a lot more useful software at:

http://technet.microsoft.com/en-us/sysinternals/bb897541.aspx. To use their shutdown program rather

than the apcupsd supplied version, you simply edit:

c:\apcupsd\etc\apcupsd\apccontrol

with any text editor and change our calls to shutdown to psshutdown.

Command Line Options Specific to the Windows Version

These options are not normally seen or used by the user, and are documented here only for information

purposes. At the current time, to change the default options, you must either manually run apcupsd or you

must manually edit the system registry and modify the appropriate entries.

In order to avoid option clashes between the options necessary for apcupsd to run on Windows and the

standard apcupsd options, all Windows specific options are signaled with a forward slash character (/),

while as usual, the standard apcupsd options are signaled with a minus (-), or a minus minus (--). All the

standard apcupsd options can be used on the Windows version. In addition, the following Windows only

options are implemented:

/service

Start apcupsd as a service

/run

Run the apcupsd application

/install

Install apcupsd as a service in the system registry

/remove

Uninstall apcupsd from the system registry

/about

Show the apcupsd about dialogue box

/kill

Stop any running apcupsd

/help

Show the apcupsd help dialogue box

It is important to note that under normal circumstances the user should never need to use these options

as they are normally handled by the system automatically once apcupsd is installed. However, you may

note these options in some of the .pif files that have been created for your use.

Installation: Serial-Line UPSes

Overview of Serial-Interface UPSes

If you have a UPS that communicates via serial port, you need to do two things before you can even think

about configuring the software. First, you need to figure out whether it's a dumb (voltage-signalling) UPS

or speaks the apcsmart protocol. Second, if you have an interface cable from APC, you need to figure out

what kind it is. If you don't have such a cable, you need to build one. A straight-through serial cable won't

work.

According to Bill Marr the Belkin F5U109, also sold as F5U409 also works with apcupsd for kernel

versions 2.4.25 or higher and kernels 2.6.1 and higher. These newer kernels are needed to have the

patch that makes the mct_u232 (Magic Control Technology) module and other adapters work with RS-232

devices that do not assert the CTS signal.

Connecting a Serial-Line UPS to a USB Port

By using a special adaptor, you can connect your serial-line UPS to a USB port. If you would like to free

up your serial port and connect your existing serial port UPS to a USB port, it is possible if you have one

of the later kernels. You simply get a serial to USB adapter that is supported by the kernel, plug it in and

make one minor change to your apcupsd.conf file and away you go. (Kern adds: Thanks to Joe Acosta for

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