ANSI Hardware Installation Manual 7360 ISAM FX-16 shelf cabling
Issue: 09 3HH-12893-AAAA-TCZZA 105
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6.5 Power cabling
This section describes the 7360 ISAM FX-16 general information, power distribution
unit location and the external power cabling procedure to connect the power cables.
6.5.1 General
This section includes information about the power distribution frame, external
ground, and power cable routing.
6.5.1.1 DC mains battery return connection
The 7360 ISAM FX-16 equipment is suitable for use in an installation using an IBN
or a CBN. A bonding conductor between the return feed power conductor and the
chassis cannot be made at the 7360 ISAM FX-16 shelf. When the installation
environments require such bonding conductors, they must be installed in accordance
with the requirements of the local authorities having jurisdiction, and all relevant
electrical and building codes.
6.5.1.2 Power distribution frame (PDF)
The 7360 ISAM FX-16 shelf is powered through two redundant branches A, and B,
in a three-wire configuration provided by the PDF.
The 7360 ISAM FX-16 operates with a nominal voltage level of −48 Vdc supplied by
battery power sources in the CO or cabinet.
6.5.1.3 External ground
The standard rack provides three frame ground points with two located on top of the
rack. The safety ground conductor used must be a green-yellow insulated cable (UL
60950-1 2nd Edition and CAN/CSA C22.2 NO. 60950-1-07 compliant).
6.5.1.4 Cable routing
Power cables are routed from the PDF to the rack using cable channels overhead
and are connected at the input terminal block inside the 7360 ISAM FX-16 shelf.
To minimize interference, Nokia recommends that you route power cables using
separate channels for signal and power cables.
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