Nortel Meridian 1 option 11C Planning And Installation Manual page 179

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This chapter describes how to install and connect a reserve DC power supply
to Option 11C cabinets.
If installing a multiple-cabinet system, each cabinet must have its own reserve
power supply.
The types of reserve battery power are:
• The NTAK75 battery box, which has the following features:
— designed to be float-charged by the NTDK78 ac/dc power supply
— provides a minimum of 2 hours of reserve DC power
— mounts to the floor
— supports one system cabinet
• The NTAK76 battery box, which has the following features:
— designed to be float-charged by the NTDK78 ac/dc power supply
— provides a minimum of 15 minutes of reserve DC power
— mounts to the wall
— supports one system cabinet
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