./configure \ --prefix=$HOME/apcupsd/bin \ --sbindir=$HOME/apcupsd/bin \ --enable-cgi \ --with-cgi-bin=$HOME/apcupsd/bin \ --with-log-dir=$HOME/apcupsd/bin \ --with-pid-dir=$HOME/apcupsd/bin \ --sysconfdir=$HOME/apcupsd/bin \ --with-lock-dir=$HOME/apcupsd/bin \ --with-pwrfail-dir=$HOME/apcupsd/bin \ --with-serial-dev=/dev/ttyS1 \ --enable-pthreads \ --with-nis-port=7001 \ --disable-install-distdir

Note, in

this

case,

we use considerably more configuration options

to ensure

that

the

system files are placed in a different directory

($HOME/apcupsd/bin). We have also selected a different serial port and a different NIS (Network Information Server) port. And finally, we have used the --disable-install-distdir option, which prevents make install from doing the final system installation (i.e. the modification of the halt script) since this was previously done.

Important Steps after Installation of the Second Copy:

After the make install of the second copy of apcupsd there are a number important steps to complete. You must either remove or modify the file $HOME/apcupsd/bin/apccontrol, so that it will not shutdown Computer A when the battery of UPS 2 is low. One suggestion is to copy exam- ples/safe.apccontrol into $HOME/apcupsd/bin/apccontrol. Alternatively, you could edit the $HOME/apcupsd/bin/apccontrol and delete all state- ments that attempt to shutdown the machine. Another important step is to find a way to shutdown Computer B when UPS 2’s battery is low. Probably the simplest way to do this is to edit $HOME/apcupsd/bin/apcupsd.conf on Computer A so that this second copy of apcupsd becomes a network master. Then install a standard slave configuration on Computer B. Please remember that if UPS 1’s batteries are exhausted before UPS 2’s batteries, Computer B may not be properly shutdown. And at the current time, there is no simple means to make the two copies of apcupsd running on Com- puter A communicate. Thus there are certain risks in such a configuration. However, these configurations can be very useful for powering electronic equipment and such.

If Computer B is vitally important, it would probably be better to purchase

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APC UPS control system manual Important Steps after Installation of the Second Copy
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UPS control system specifications

APC UPS (Uninterruptible Power Supply) control systems are vital components for ensuring uninterrupted power supply and protecting critical equipment from power interruptions, surges, or fluctuations. Designed by Schneider Electric, APC UPS systems are renowned for their high quality and reliability. They utilize advanced technologies and features to suit diverse applications, from home offices to large industrial settings.

One of the main features of APC UPS systems is the ability to provide backup power during outages. This is achieved through a battery system that activates immediately when the mains power fails. This seamless transition minimizes downtime and ensures that electronic devices continue to operate, protecting data integrity and equipment lifespan.

Another significant characteristic of APC UPS systems is their intelligent management capabilities. Most models come with PowerChute software, which provides users with real-time monitoring of power conditions and the status of the UPS. This software allows for graceful shutdowns of connected devices during extended outages, thereby preventing data loss and damage to devices.

APC UPS systems also incorporate advanced technologies such as Automatic Voltage Regulation (AVR). AVR technology ensures that the output voltage remains stable by correcting minor fluctuations without switching to battery mode. This not only prolongs the battery life but also provides a consistent power supply to the connected equipment.

Thermal management is another critical aspect of APC UPS control systems. The design often includes efficient cooling systems that prevent overheating, ensuring optimal performance and longevity of the unit. Some models feature EcoMode, which reduces energy consumption and lowers operational costs by working at high efficiency only when battery backup is not required.

APC UPS systems are designed with scalability in mind. Users can easily add more batteries or connect additional UPS units to accommodate growing power needs. Features such as hot-swappable batteries and modular design facilitate easy upgrades and servicing without interrupting power supply.

In terms of connectivity, APC UPS products often feature multiple options including USB, RS-232, and network management capabilities. This enables users to connect remote management tools and integrate the UPS with existing IT infrastructure.

In summary, APC UPS control systems deliver reliability, efficiency, and advanced technology features that cater to a wide array of power protection needs, making them a trusted choice for individuals and businesses alike.
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