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INSTALLING THE ADAPTERS
2.5.1 Using LANVIEW LEDs
The FDDI network adapters employ four LANVIEW LEDs. The
functions of these LEDs are explained below:
Processor LED (red)
The F30XX and F70XX model FDDI adapters use an on-board
Motorola 68ec020 CPU. The Processor LED flashes at different
rates to indicate on-board processor conditions.
• When the Processor LED flashes at a rate of one flash per
second (the "heartbeat") it indicates that the processor is
functioning normally. Note that the heartbeat is not
continuous - the heartbeat will only be displayed for a period
of thirty seconds after power up.
• When the Processor LED is on continuously (not flashing), it
indicates adapter failure. Reload the network driver to cause
the SMT code to be updated. If the continuous indication
persists, contact Cabletron Technical Support.
Receive Data (yellow)
The Receive Data LED illuminates to indicate that packets are
being received from the FDDI network.
Transmit Data (green)
The Transmit Data LED illuminates when packets are being
transmitted by the FDDI adapter onto the FDDI network.
Bicolor LED
This LED indicates one of three possible FDDI link conditions.
• Illuminates in red to indicate No Connection to the FDDI
network. Check all connections to the FDDI link.
• Remains unlit to indicate Signal Detect (a signal is being
received from the FDDI network, but the adapter is unable to
establish a link with another FDDI device).
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