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The Power Filter Unit HCPPFU02 is a part of TJ1600 Type-11SR system. The unit provides a filtered input voltage of -40V to -57.6V DC to all the cards.
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.
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: 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: Do not jack-in/jack-out 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.
The following figure displays front panel of the HCPPFU02 card:
Operational Specifications of Power Filter Unit- HCPPFU02
Specification |
Range |
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Input Voltage Range |
-40V to -57.6V DC |
Reverse Polarity Protection |
Continuous |
Input Current |
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Maximum operating Ambient Temperature |
-5°C to 55°C |
Output Voltage |
-40V to -57.6V DC |
Output Current |
65A |
Efficiency |
>90% Load when input is -48V DC |
Fuse |
80A Telecom fuse |
Under Voltage Protection |
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Hold-up Time (Interruption) |
1.5ms at -53.2V and above |
Power Interface |
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Protections |
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Status Indication |
Power LED: Indicates presence of Output voltage (Green). |
Over Voltage Protection |
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Following are the functional features of the HCPPFU02: