Apcupsd User’s Manual

Release Notes

This release contains a good number of cleanups and bug fixes to prior 3.10.x versions, and is intended to be the official release. See the ChangeLog below for more details.

New Features

-Implement USB on all *BSD systems. Note, the kernel drivers on most of these systems are still fragile. There are known problems, for example, on FreeBSD.

-Fix killpower on USB UPSes to properly turn off UPS.

-More killpower fixes for BackUPS Pros.

-Fix killpower sequence for serial UPSes.

Change Log for current version

----> Release 3.10.17 xxMar05

-Update default apcupsd.conf to recommend a blank DEVICE setting for USB driver.

-Add /dev/hiddev? to Linux USB driver device node search path.

-Add Mac OS X startup script

-Add new *BSD USB driver to support USB UPSes on FreeBSD, OpenBSD, and NetBSD. THIS DRIVER IS BETA SOFTWARE AND HAS A KNOWN LOCKUP ISSUE ON FREEBSD. Please keep this in mind when deciding whether or not to deploy it. PLEASE READ THE "CHECKING OUT YOUR USB SUBSYSTEM (BSD)" SECTION OF THE MANUAL as it contains crucial details on how to configure your system for the new driver.

-Add BackUPS Pro shutdown code to USB driver

-Prefer BackUPS style shutdown over SmartUPS in USB driver to resolve shutdown issues on BackUPS CS models

-Restructure USB driver to share common code

-Fix slave mode segfault bug introduced by --killpower fixes in 3.10.16.

-Commit kernstodo

-Added an anonymous patch to powerflute.c and to the slack-apcupsd.in file.

-Add Whitebox to detected systems.

-Minor tweak to RedHat spec.in

-Apply Carl Lindbergs patch

for apcaction.c to fix the network management card shutdown.

-Fix typo in targets.mak that prevents uninstall from working.

-Change name of thread_terminate to apc_thread_terminate to avoid conflict on AIX.

-Put configure found SHUTDOWN in apccontrol.in

-Figured out how to scale the pdf images, so re-did them.

-Some minor updates to the manual, particularly the title

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APC UPS control system manual Apcupsd User’s Manual Release Notes, New Features, Change Log for current version

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.