ИБП подключен по USB, используется драйвер usbhid-ups. Имеется следующая проблема:
# upsc apc@localhost
battery.charge: 100
battery.charge.low: 10
battery.charge.warning: 50
battery.date: 2006/07/05
battery.mfr.date: 2006/07/05
battery.runtime: 37
battery.runtime.low: 120
battery.temperature: 29.2
battery.type: PbAc
battery.voltage: 13.4
battery.voltage.nominal: 12.0
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.4.1
driver.version.data: APC HID 0.93
driver.version.internal: 0.34
input.voltage: 230.0
input.voltage.nominal: 230
output.voltage: 230.0
output.voltage.nominal: 230.0
ups.beeper.status: enabled
ups.delay.shutdown: 20
ups.firmware: 808.q7.I
ups.firmware.aux: q7
ups.load: 37.0
ups.mfr: American Power Conversion
ups.mfr.date: 2006/07/05
ups.model: Back-UPS CS 500
ups.productid: 0002
ups.serial: BB0627034629
ups.status: OL LB
ups.test.result: No test initiated
ups.timer.reboot: 0
ups.timer.shutdown: -1
ups.vendorid: 051d