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2 – General Description
Fibre Channel Ports
2-10 SN0051102-00 A
S
Each port is served by a small form-factor pluggable (SFP) optical transceiver and
is capable of 1-Gbps or 2-Gbps transmission. SFPs are hot-pluggable. FC ports
can self-discover both the connection type and transmission speed when
connected to public devices or switches. The port LEDs are located to the right of
their respective ports and provide status and activity information.
Fibre Channel Port LEDs
Each port has three LEDs:
The amber LED (top) shows activity (data is passing through the port).
The green LED (middle) shows the logged-in or initialization status of the
connected devices. This LED flashes off to show the link rate, once for
1-Gbps speed, and twice for 2-Gbps speed.
The yellow (bottom) LED shows an alert (port fault) condition.
Table 2-2 describes the LED blink patterns and their meanings.
Table 2-2. Port LEDs
Activity Amber LED Green LED Yellow LED
Power OFF
OFF OFF OFF
Power ON
(before firmware
initialization)
ON ON ON
Online
Link established
at 1Gbit
OFF 3 seconds ON
Flashes OFF once
OFF
Activity at 1 Gbps
ON 3 seconds ON
Flashes OFF once
OFF
Online
Link established
at 2 Gbps
OFF 3 seconds ON
Flashes OFF twice
OFF
Activity at 2 Gbps
ON 3 seconds ON
Flashes OFF twice
OFF
Power ON
(after firmware ini-
tialization and/or
loss of synchroni-
zation)
OFF ON ON
Firmware error
OFF OFF ON