Features - Cabletron Systems 9C214-1 Installation Manual

Introduction

Features

Diagnostic Controller for Management
Each 9C214-1 power supply has a diagnostic controller that includes a
microprocessor that monitors the numerous power supply functions available to
the Network Manager via LCD, as well as local and remote management.
Internal Temperature Sensor
Each 9C214-1 power supply has its own built-in temperature sensor for
monitoring and reporting its own internal temperature to the Network Manager
via LCD, as well as local and remote management.
Cooling Fan
The diagnostic controller increases or decreases the fan speed based on the
temperature of the power supply. In the event of microprocessor failure, the fan
speed defaults to 100% to ensure protection of the power supply.
Thermal Overload Protection
A thermal shutdown circuit is included within each 9C214-1 power supply. This
circuit protects the power supply from overheating if a thermal overload occurs.
Automatic recovery takes place after the thermal overload condition is corrected.
Load Sharing
Each 9C214-1 power supply uses a current-sharing scheme whereby if two power
supplies are used, under all load conditions, each supply provides 50% (± 5%) of
the required load on each output. This feature increases the life of a power supply.
Universal AC Input
The 9C214-1 power supply accepts AC input voltage ranging from 100–250 volts
at 50/60Hz.
Hot Swapping
9C214-1 power supplies can be installed or removed from the back of the chassis
while another power supply is operating without affecting network operation.
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LANVIEW LEDs
Each 9C214-1 power supply has three LANVIEW LEDS:
• PWR Status LED - Indicates the status of the 9C214-1 power output
• SMB Status LED - Indicates the status of the diagnostic controller
• Power Supply Level Indicator LED - Indicates the percentage of the power
supply load being used
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