American Power Conversion MatrixTM UPS - Manual (Page 8)

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
Rear View Front View
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.