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6.0 Additional UPS Features
This section describes:
• Inverter Shutdown
• Network Transient Protector
• Load segments
• Using the communication port or USB port
• Optional Powerware communication cards
6.1 Inverter Shutdown
The Powerware 9120 includes a port that allows the UPS inverter to be switched off.
This feature is designed to be used with Powerware External Maintenance Bypass Switches.
Refer to the instructions provided with the switch for further information.
WARNING
The Inverter Shutdown circuit is an IEC 60950 safety extra low
voltage (SELV) circuit. This circuit must be separated from any
hazardous voltage circuits by reinforced insulation.
Figure 9. Inverter Shutdown Connector
6.2 Communication Port (standard)
To establish communication between the UPS and a computer, connect your computer to the UPS
communication port using the supplied communication cable.
When the communication cable is installed, power management software can exchange data with
the UPS. The software polls the UPS for detailed information on the status of the power environ-
ment. If a power emergency occurs, the software initiates the saving of all data and an orderly
shutdown of the equipment.
The pin functions are described in Table 2.
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