American Power Conversion MatrixTM UPS user manual Battery Pack, Rear View

6. Battery communications jack

The Battery Pack communications cable from the Battery Pack OUTPUT is connected at this jack.

7. Manual bypass switch

Pressing the manual bypass switch causes the UPS to transfer to the bypass mode of operation. While in this mode, the load is supplied with power conditioned by the IU. However, the load will not be protected from utility voltage sags, swells or blackouts. The EU is removed for service when the UPS is operating in bypass. See the Operation section of this manual for more details on this mode of operation.

8. Emergency Power Off jack

For applications where, for safety reasons, power to all room equipment must be cut off, the UPS provides a remote Emergency Power Off interface. A modular 6 position plug with offset latch fits this jack. See the Installation section of this manual for instructions on how to connect to the jack.

3.3 Battery Pack

1. Battery Pack

The Battery Pack contains four series connected nominal 12 Vdc high-capacity sealed lead-acid batteries. Built-in ultra- low power consumption battery pack voltage and current monitoring electronics report pack status to the UPS. To conserve battery capacity, the internal electronics are shut down when the battery communications cable is not connected to the UPS, or when the UPS is not running.

2. INPUT battery communications jack

This input accepts battery status signals from the OUTPUT of another Battery Pack in the system. No connection is made to this jack in a single Battery Pack system.

3. OUTPUT battery communications jack

The Battery Pack sends status signals to the UPS or to the INPUT of another Battery Pack (in a multiple Battery Pack system) from this jack.