HCPPFU04

The Power Filter Unit (HCPPFU04) is used in TJ1600 Type-6SR chassis to supply power. The unit provides a filtered input voltage of -40V to -57.6V to the chassis and the cards on the chassis.

There are two HCPPFU04 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.

STATIC DISCHARGE WARNING: Static charge can damage the equipment. While handling cards for making system interconnections, wear an ESD strap to discharge the static buildup.

Caution Sign CAUTION: This equipment might have more than one power supply connection. All connection must be removed to de-energize the unit before accessing internal parts for maintenance or service.

Danger Warning DANGER: Do not jack-in/jack-out PSU/PFU card in the system with Power Cable connected. PSU/PFU has high energy and/or voltage level that can cause serious electrocution or burn.

Front Panel

The following figure shows the front panel diagram of the HCPPFU04:

Front Panel- PFU4

Operational Specifications

Operational Specifications of Power Filter Unit- HCPPFU04

Specification	Range
Input Voltage Range	-40V to -57.6V DC
Reverse Polarity Protection	Continuous
Input Current	21A continuous at nominal voltage, 25A maximum at -40V during normal operation.
Maximum operating Ambient Temperature	-5°C to 55°C
Output Voltage	-40V to -57V DC
Output Current	21A
Efficiency	>90% Load when input is -48V DC
Fuse	40A 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	Sts LED: Indicates the card status. Act LED: Indicates whether the card has become active or not.

Functional Description

Following are the functional features of the HCPPFU04:

EMI filtering and hold up provision.
Hardware monitoring.

Visual Indicator Details

The visual indicators on the HCPPFU04 card include two LEDs namely Act (ACTIVE) and Sts (STATUS), provided to indicate the card status and whether the card has become active.

LED status and their significance- HCPPFU04

Card State	Sts LED	Act LED
Card initialization: State before the card initialize is complete on card insertion.	Amber (Steady)	Amber (Steady)
Card in service: Initialization complete and card in service.	Green (Steady)	Green (Steady)
Card mis-match: Node has already configured the slot with some other card.	Amber	Amber
Card failed during boot up.	Red	Amber
Card failed while in-service.	Red	Green