American Power Conversion 400 user manual Computer Interface port

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6.0 UPS Monitoring

6.4 Computer Interface port

The Computer Interface port is diagramed below. Those with technical abilities wishing to use this port in a special application should be aware of the following limitations and capabilities of the interface.

■Outputs at Pins 3, 5, and 6 are open collector outputs which must be pulled up to a common referenced supply no greater than +40 Vdc. The transistors are capable of a maximum noninductive load of 25 mAdc. Use only Pin 4 as the common.

■The output at Pin 2 generates a low-to-high RS-232 level upon transfer of the output load to UPS battery power. The pin is normally at a low RS-232 level.

■The UPS shuts down when a high RS-232 level is applied to Pin 1 for 4.5 seconds. The UPS responds to this signal, after a delay, only during on- battery operation.

■An unregulated +24 Vdc appears at Pin 8 of the interface port whenever the UPS is powered. The supply is limited to 40 mAdc maximum.

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Contents Smart-UPS Important safety instructions Radio frequency interferenceTable of Contents Specifications Storing the UPSIntroduction OverviewBattery replacement indicators and test SmartBoostRemote interfaces Extended capabilitiesSafety EnglishSécurité FrançaisSicherheit Vorsicht¡Seguridad ¡Atencion400VA UPS-front panel Presentation400VA UPS-rear panel Placement InstallationReceiving inspection 100, 120 Vac versions 220/230/240 Vac versionCharge the batteries Auto-on operationPlug in the accessory devices Configure Option Switch 4 and UPS Enable switchTurn on accessories Plug in the master deviceManual operation Enable the UPSPlug loads into UPS Operation Test button functions 5.2.1 Line Voltage bar graph Output Power bar graph UPS self-testAudible alarms On-battery alarmLow battery Replace batteryOption switches Option SwitchVac version No function not used Status reporting MonitoringPower management Operation customizing Audible alarm operation Minimum battery capacity to restartShut down, turn off delay Turn on delayUPS Monitoring PowerChute SoftwareInterface Kits Computer Interface port Difficulty Difficulté Schwierigkeit Dificultad Solution TroubleshootingPossible cause Troubleshooting UPS Battery replacement check Obtaining service Storage conditions Storing the UPSExtended storage Specifications Transfer characteristicsOutput characteristics InputSurge and noise suppression Battery and charger UPS version VacOperating Environment Weight PhysicalApprovals Size H´W´DTypical run times versus load Load Run Time Typical computer VA † minutes ‡ EquivalentsLimited Warranty Life support policy∗ Mailing