FNP1500/1800 Front-Ends
& FNR-3 Power Shelves Data Sheet
Features
FNP1500/1800 front-ends have
front-mounted AC input receptacles.
Applications
Telecommunications
Data communications
Servers
Distributed power
RoHS compliant for all six substances
High density front-ends 15.2 to 18.3 W/in3
Wide input voltage range 85 to 264 VAC
12 V standby voltage, 1A per front-end
Highly efficient topology reduces operating costs
I2C interface status and control
I2C voltage and current limit setting
Analog output voltage setting
Overtemperature, output overvoltage, and output
overcurrent protection
ORing circuits for true redundant operation:
Vo1: ORing FETs; Vo2: ORing Diodes
Status LEDs: AC OK, DC OK, and
Fan Fail/Overtemperature Fail
FNR-3
Power Shelf
FNR-3 shelves provide up to 5400 watts in a 19" rack.
(See the Rack section for power shelf details.)
Description
The FNP1500/1800 front-ends are power-factor-corrected (PFC) which (depending on model type) provide a 12 VDC or 48 VDC
(1500 or 1800 watt) output, and can be used in hot-swap redundant systems. Their very small dimensions allow configuration of
up to three units in a 1U rack. The FNP front-ends have a front-mounted AC receptacle. The highly efficient thermal design with
internal-fan cooling permits their use over wide temperature ranges and provides very high reliability.
Status information is provided with front panel LEDs, logic signals, and via an I2C management interface. In addition, the I2C bus
can enable the power supply, set high fan speed, adjust the output voltage, and set the output current limit. The FNP1500/1800's
meet international safety standards and display the CE-Mark for the European Low Voltage Directive (LVD).
FNR-3-12G and FNR-3-48G power-shelf solutions provide rectification, system management, and power distribution, while
maintaining high reliability and offering flexibility for future expansion. The power shelves can be configured with up to three hotswappable 1500 or 1800-watt AC-DC front-ends.
MCD10074 Rev. 1.2, 15-Apr-10
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