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Power SuppliesPassport 4400 Hardware Installation Manual
9-2
5-slot Chassis
The five-slot Passport 4450 chassis uses a 160W power supply to provide power
to the Ethernet Base Module and expansion modules. Both AC and DC models
are available; the figure below shows an AC unit.
Figure 9-2. 5-slot Passport 4450 Power Supply
Digital Voice Expansion Module Power Harness
The Digital Voice Expansion Module power harness provides redundant power
for Passport 4450 units containing one or more Digital Voice Expansion Modules.
The power harness connects the modules to the power sharing board (see Figure
9-2 above, and Figure 5-12 on page 5-12, for more information concerning the
Digital Voice Expansion Module Power Harness).
Jumper J12
POS8
POS1
Connector for
DVEM Power
Harness
Power Cable
(to Ethernet
Base Module)
Grounding
Cable
Status
Cable
Input Connectors
for AC Unit
Input Connectors
for DC Unit
(side of power supply)