Power Filter Unit

The Power Filter Unit HCPPFU02 is a part of TJ1600-11 system.

There are two HCPPFU02 cards in each system to provide input source redundancy. An EMI filter is used to restrict conducted emissions. The filters have transient voltage suppressors to prevent voltage surges affecting the system.

Following are the functional features of the HCPPFU02:

Over Voltage, Under Voltage and Over Current protections.
EMI filtering and hold up provision.
Hardware monitoring.

Front panel

The following figure displays front panel of the HCPPFU02 card:

TJ1600-11 HCPPFU02 - Front panel

Operational specifications

Operational Specifications of Power Filter Unit- HCPPFU02

Specification	Range
Input Voltage Range	-40V to -57.6V DC
Reverse Polarity Protection	Continuous
Input Current	55A continuous at nominal voltage. 65A at -40V Max, during normal operation.
Maximum operating Ambient Temperature	-5°C to 55°C
Output Voltage	-40V to -57.6V DC
Output Current	65A
Output Power
Efficiency	>90% Load when input is -48V DC
Fuse	80A Telecom fuse
Under Voltage Protection	Shutdown: -34V ± 2V Recovery: -38V ± 2V
Hold-up Time (Interruption)	1.5ms at -53.2V and above
Power Interface	Input: One 3-pin Power Header Output: One FCI Connector
Protections	Over Voltage Under Voltage Over Current
Status Indication	Power LED: Indicates presence of Output voltage (Green).
Over Voltage Protection	Shutdown: 61V ± 2V Recovery: 58V ± 2V