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Chapter 1 Introduction
NortelNetworks 5399 Access Switch HardwareInstallation Guide
Port Usage LEDs The PortUsage LEDs, labelled 25%, 50%, 75%, and 100%, indicate the
approximate percentageof B channels that are being utilized.There a re
two sets of Port Usage LEDs, one set for each WANPort. These LEDs
arenormally green. If all available B channels are in use, theyturn amber
until at least one call disconnects.
WANI nterface Ports The two WANinterface ports provide access to Channelized T1,
ChannelizedE1, or ISDN PRI lines. The WANInterface ports come with
8-pin, RJ48C jacks for attaching the T1, E1 or ISDN cable connectors.