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ANSI/VITA 40-2020, Service and Status Indicator Standard
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Description
This document describes a service and status indicator standard that seeks to be as compatible as possible with existing indicator standards and their extensions across different product markets. This standard addresses the meaning and application of specific colors to service indicators. This standard also defines and assigns meanings to specific approved behaviors or states for each color. It specifies where indicators must be placed and in what order, and it specifies luminance levels and viewing angles. The purpose of this standard is to provide the information needed to design service indicators for boards, subsystems, and enclosures.