page.

Change Log for older versions

----> Release 3.10.16 04Nov04

-Adam has fixed the killpower problem for USB so that the USB now properly turns off the power. Nice job.

-Converted manual from docbook to texinfo format. There is some cleanup to be done, but we get an index.

-Thanks to Adam for converting the .png images to .pdf

-Apply patch to fix aastr... supplied by Manfred Schwarb.

-Changed Solaris to use mailx by default at the suggestion of Neil Brookins.

-Added Adam’s snoopdecode.c to examples that allows viewing USB events.

-A number of typos fixed in apccontrol files.

-Adam fixed a race condition in killpower with --kill-on-powerfail.

---kill-on-powerfail disallowed for dumb UPSes since the

kill power will always occur before the system has been halted.

-Lots of doc updates.

-Add proper platform code so that configure will create

the 4 platform specific apccontrol files (some were missing).

-Apply fix from user to correct one of the shutdown

sequences for the Smart UPS. During the conversion to drivers this was apparently mangled.

-Added code to close all file descriptors before becoming daemon unless debug turned on.

-Add APCBATTCapBeforeRestore found by Adam to hid-ups.c

-Update copyright in apc_struct.h

-Take Adam’s new apc_defines.h with minor modification.

-Correct a bug reported by a user (he also had the fix) to the snmp driver where Sensitivity was incorrectly reported.

-Add astrncpy() to snmp driver.

-Fix apcstatus.c to report Unknown for the sensitivity rather than High if the sense word cannot be read or is incorrect.

----> Release 3.10.15 07Aug04

-Document Mandrake USB kernel problems.

-Fix HID_MAX_USAGES in the examples directory

-Apply David Walser’s patch for missing colors in multimon. Reads the apcupsd.css file from the sysconf directory.

-Add EEPROM fix from Giuseppe Ghibo passed on by David Walser

----> Release 3.10.14 28Jul04

-Add workaround from Adam for linux/hiddev.h missing define.

-Updates to manual.

-Integrate patch for Mandrake apcupsd.in forwarded by David Walser.

-Found another store into the ups buffer so ifdefed it. Cannot store into the ups buffer on non-pthreads systems.

-Fiddle with apcconfig.c to correct astrncpy() problem noted by Adam.

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APC UPS control system manual Change Log for older versions

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.