a serial port card for it, or perhaps use a USB UPS. To ensure that it is properly shutdown if Computer A goes down, you could run a second copy of apcupsd on Computer B as a slave connected to the main copy of apcupsd on Computer A. Thus Computer B would be running two slaves, one driven by the master controlling UPS 1 and the other by the master controlling UPS 2, and Computer B could be shutdown by the first master that signaled it to do so.

Support for SNMP UPSes

snmp To run apcupsd with an SNMP UPS, you need the following things:

•An SNMP UPS, for example a Web/SNMP card installed into the SmartSlot.

•apcupsd version 3.10.0 or higher

•Net-SNMPlibrary (previously known as ucd-snmp) installed

Connecting an SNMP UPS

The Simple Network Management Protocol provides an interface to con- nect to remote devices through the network. apcupsd is now capable of using the SNMP interface of an SNMP-enabled UPS to communicate with an UPS. Currently apcupsd supports only APC’s PowerNet MIB. To en- able the SNMP support it is enough to configure the correct device in your apcupsd.conf configuration file. The directive needed for this configuration is:

DEVICE 192.168.100.2:161:APC:private

where the directive is made by four parts:

•IP address of the remote UPS

•Remote SNMP port

•Kind of remote SNMP agent, currently can only be “APC” for APC’s powernet MIB

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APC UPS control system manual Support for Snmp UPSes, Connecting an Snmp UPS
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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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