Technical Reference

Configuration Directive Reference

Configuration directives in /etc/apcupsd/apcupsd.conf control the behavior of the apcupsd daemon. For most installations it is only necessary to set a handful of general directives. The rest can be left at their defaults unless you have an exotic configuration.

General Configuration Directives

In general, each of these directives is required (ecept that the DEVICE directive is ignored for UPSCABLE ether).

UPSTYPE <type of APC UPS you have> The name of a driver. Should be one of dumb, apcsmart, net, usb, snmp, or test. This de- scribes your interface type.

The UPSTYPE directive can be defined during installation by using the --with-upstype= option of the ./configure program.

UPSCABLE <type of cable you are using>>

[simple 940-0020B 940-0023A ]

[smart 940-0024B 940-0024C ]

[940-1524C 940-0024G 940-0095A 940-0095B 940-0095C 940-0119A]

[ether usb ]

The --with-upscable= option of ./configure can be used to set a default for this directive during the your build.

DEVICE <name of device> Specify which device is used for UPS com- munications. For serial ports, it is usually something like /dev/ttyS0. For USB ports, you may leave the name of the device blank (no speci- fication) and apcupsd will automatically search the standard locations for the UPS.

Normally, the ./configure program will set an appropriate default value. You may also specify the --with-serial-dev= option of the

./configure program to set this directive at build time.

If you have specified UPSTYPE net, then the device name to be specified consists of hostname:port where the hostname is the fully

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APC UPS control system manual Technical Reference Configuration Directive Reference, General Configuration Directives
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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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