5-4 CHP Max™ Headend Optics Platform Chassis, Controllers and Power Supplies Rev D
Functional Description
Figure 5.3
DC Power Supply
Block Diagram
DC Input Connector
A 3-pin connector that accepts the negative DC input, return, and ground.
Fuse
This fuse limits the current used by the Power Supply module if a short circuit occurs inside
the module and prevents the loss of DC power to other connected devices. The fuse is not
user-serviceable.
Filter
The filter reduces electromagnetic interference conducted from within the Power Supply
module to the DC input.
Table 5.1 Power Supply Connectors
Callout Description
DC Input Connector Accepts DC input from –36 to –72V
DC. Mates with a provided power
plug connector (P/N MT0401).
Fans Cooling fans. Two per power supply.
DC/Communication
Connector
Multi-pin connector. Pins carry DC voltages and communication signals
out of power supply and communication signals into the monitoring
circuitry of the power supply.
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