With IPHost Network Monitor you can run simple snmp requests against a Liebert device in your network.
lcUpsInputNumLines
Liebert Ups Input Num Lines
1.3.6.1.4.1.476.1.1.1.1.3.5
The number of input lines utilized in this device. This entry indicates the number of rows in the input table.
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IPHost Network monitor allows you to monitor lcUpsInputNumLines on Liebert device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Liebert uninterruptible power sources right now.