UPS Startup

3.If you are installing power management software, connect your computer to the UPS communication port using the supplied communication cable.

DB-9 Connector for

Computer Cable

Figure 42. Communication Port

4.The UPS front panel display automatically turns on whenever input power is present and at least one power module is installed. Set up the initial operating parameters through the front panel display (see •Initial Startup Parameters" on page 56).

NOTE The unit has no physical On/Off switch. The UPS On/Off function must be accessed through the front panel display.

NOTE If the UPS has been manually set to operate in Bypass or Battery mode, change the System mode menu selection (menu 2) to Auto to return to normal Auto mode operation.

5.Test proper operation of optional external control signals and computer communication before connecting the load. (See •DB-9 Port Pin Functions" on page 71 for details.)

6.Plug the equipment to be protected into the UPS output receptacles. Turn on the equipment that is connected to the UPS.

DO NOT protect laser printers with the UPS because of the exceptionally high power requirements of the heating elements.

NOTE The total volt-ampere load must not exceed the volt-ampere rating of the entire cabinet. See •Balancing Receptacle Loads" on page 58 for additional information.

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Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy