—enable-testThis turns on a test driver that is used only for debugging. By default it is disabled.

—enable-nisTurns on the Network Information Server (NIS) code within apcupsd. This is enabled by default. If you do not want to access the status of the UPS from the network and you are not controlling any slaves via NIS (enable-net), this can be disabled.

—enable-pthreadsThis option enables pthreads support causing apcupsd to be built as a threaded program rather than forking to create separate processes. apcupsd built in this fashion is more effi- cient that the standard version being one third the data size and less overhead locking and coping shared memory. This option is highly recommended for Windows builds.

—with-libwrap=<path> This option when enabled causes apcupsd to be built with the TCP WRAPPER library for enhanced security. In most cases, the <path> is optional since configure will determine where the libraries are on most systems.

—with-nologin=<path> This option allows you to specify where apcupsd will create the nologin file when logins are prohibited. The default is /etc

—with-pid-dir=<path> This option allows you to specify where apcupsd will create the process id (PID) file to prevent multiple copies from running. The default is system dependent but usually /var/run.

—with-log-dir=<path> This option allows you to specify where apcupsd will create the EVENTS and STATUS log files. The default is /etc/apcupsd. This option simply sets the default of the appropriate path in the apcupsd.conf file, which can be changed at any later time.

—with-lock-dir=<path> This option allows you to specify where apcupsd will create the serial port lock file. The default is systemde- pendent but usually /var/lock. This option simply sets the appropriate path in the apcupsd.conf file, which can be changed at any later time.

—with-pwrfail-dir=<path> This option allows you to specify where apcupsd will create the powerfail file when a power failure occurs. The default is system dependent but usually /etc.

—with-serial-dev=<device-name> This option allows you to specify where apcupsd will look for the serial device that talks to the UPS. The default is system dependent, but often /dev/ttyS0. This option simply sets the appropriate device name in the apcupsd.conf file, which can be changed at any later time.

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APC UPS control system manual
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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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