9-4 Installing and connecting the batteries
AccessNode 323-3001-210 Issue 1.0
Procedure 9-1
Installing 12 V batteries in a cabinet
Use this procedure to install 12 V lead-acid batteries in NT1W00GA/HA/JA
cabinets. Follow this procedure to install batteries during the initial installation
of the cabinet or to add battery strings to an operational cabinet.
Battery strings 1–12 provide at least eight hours of battery back-up for a fully
configured S800A system. Battery strings 13 and 14 can provide additional
battery backup power.
Note: The rectifiers can be used in battery-less operation.
Requirements
Nortel Networks recommends that the voice frequency (VF) pairs from the
copper distribution shelf (CDS) to the outside plant (OSP) VF subscriber cable
be in an OPEN state when you power up the CDS shelf for the first time. That
is, there should be no electrical connection from the CDS to the OSP VF cable
when the CDS is powered up.
You can break the CDS–OSP connection in two convenient places in the
termination compartment: the VF protector blocks and the cross-connect
facilities. Before you begin this procedure, open the termination compartment
door and check for cross-connect wiring. If any cross-connect wiring has been
installed in the termination compartment, do the following:
• Remove the VF protector modules from VF protector blocks 1–7.
• Record the VF pair numbers of the installed protectors.
After you finish this procedure, reinstall the protector modules in the same
positions (indicated by the VF pair numbers) from which they were removed.
Required tools
This procedure requires a voltmeter RMS Fluke 8050A or its equivalent.
Definitions
This procedure uses the following definitions:
• battery—a single 12 V battery
• battery string—multiple batteries connected to create -48 V
—continued—
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