3. Operation and Operating mode
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AS400 port (optional):
This optional AS400 card provides dry contact closure signal “OPEN” or “CLOSE”.
Following are the pin assignment and the descriptions of AS400 card:
l This series UPS only requires minimal maintenance. The battery used for standard
models are value regulated sealed lead-acid maintenance free. These models
require minimal repairs. The only requirement is to charge the UPS regularly in
order to maximise the expected life of the battery. When being connected to the
utility power, whether the UPS is turned on or not, the UPS keeps charging the
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