User`s guide

Introduction 1-7
Reliability
The Switch has the following features to ensure its reliability:
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Power-On Self-Test (POST)
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Bootrom Memory Testing
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Temperature and fan-speed monitoring
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Low component count.
Serviceability
The Switch has the following features, which enhance its serviceability:
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Simple enclosure
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Loopback test modes for service
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User-friendly diagnostics
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No jumpers or Switch settings
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All Field Replaceable Units (FRU) are modular, and are:
CPU board
GBIC modules
Interface cards
Power supply
Chassis, front panel assembly, and motherboard.
NOTE:
Field Replaceable Units (FRU) are listed in Chapter 3.