Tripp Lite SmartOnline S3MX Owner's Manual page 19

3. Installation and Setup
23) Use a meter to measure the positive pole of #20 battery and
the negative pole of #1 battery. (DC voltage should be within
240V~270V)
25) Use a meter to measure the positive pole of #80 battery and the negative pole of #61 battery. (DC voltage should be within
240V~270V)
26) Use one meter to measure the positive pole of #60 battery and the negative pole of#41 battery. (DC voltage should be within
240V~270V)
24) Use a meter to measure the positive pole of #40 battery and
the negative pole of #21 battery. (DC voltage should be within
240V~270V)
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