Nortel SONET AccessNode 800A Series Manual page 286

Outside plant cabinet installation
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11-2 Finishing the S800A cabinet installation procedures
Procedure 11-1
Installing the protector modules
This procedure explains how to install the line protector modules into the
protector blocks of the service protection center (SPC) located inside the
termination compartment.
Nortel Networks recommends that the VF pairs from the CDS to the outside
plant (OSP) VF subscriber cable be in an OPEN state when the CDS line cards
are first powered up. That is, an electrical connection from the CDS to the OSP
VF cable must not exist at the time of powering up the CDS line cards.
Supplying power to the CDS shelves is described in previous S800A chapters.
If you are attempting to install the protector modules prior to powering up the
cabinet and CDS line cards and the cross-connect wiring has already been
completed, only install the protector modules up to the first detent position so
that the equipment is not connected to the OSP cable and the OSP cable is
protected. After the cabinet and CDS line cards have been powered up, you can
then fully engage the protector modules into the protector block.
If the cross-connect wiring in the termination compartment has not been
installed, then the VF pairs from the CDS will not be connected to the OSP
subscriber cable and you can install the protector modules at any time.
Cautions
Observe the following caution:
AccessNode 323-3001-210 Issue 1.0
Note: SPC protector positions 97–100 on each SPC block are not used in
the S800A cabinet. Each copper-distribution shelf (CDS) provides 96
voice frequency (VF) lines and the last VF cable from each CDS (CDS
connector 76–96 on the right-hand side of the CDS) has pairs 97–100
spared out.
CAUTION
Risk of damage to equipment
During initial setup of the AccessNode, Nortel Networks
recommends that the equipment side remain disconnected
from the outside plant subscriber loops (at the protector
modules) until the line cards are installed and powered up.
For example, when using five-pin protector modules, pull the
modules out slightly to the first detent to disconnect the
modules.
—continued—

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