
DescriptionItem
Fibre Channel ports3
XPAK transponder ports (not in use)4
Front Panel LEDs and Buttons
This section provides images and descriptions of the front panel LEDs and buttons of the Fibre
Channel Switch 8/20q.
StatusDescriptionItem
Green = The switch is receiving power.Input Power LED1
Off = One of these conditions exist:
• The switch is NOT receiving power.
• The switch is in maintenance mode.
Green = The switch is in maintenance mode.Heartbeat LED2
Blinking green (once per second) = the switch is operational.
Other blink patterns indicate critical errors:
• 2 blinks — internal firmware failure
• 3 blinks — Fatal power-on self test error
• 4 blinks — configuration file system error
• 5 blnks — over-temperature
A critical error also illuminates the System Fault LED.
Amber = a fault exists in the switch firmware or hardware. See the Heartbeat LED
blink pattern for details.
System Fault LED3
Maintenance button4
• To reset the switch — press and hold the Maintenance button for less than two
seconds. This action clears any temporary error conditions that may have
occurred and executes the switch self test.
• To place the switch in Maintenance mode — press and hold the Maintenance
button for several seconds until the Heartbeat LED illuminates and then
extinguishes.
Green = The port is properly connected and able to communicate with its attached
devices.
Port Logged-in LED (on
left for each port)
5
Off = One of these conditions exist:
• The port connection is broken.
• An error occurred that disabled the port.
Green = data is passing through the port.Port Activity LED (on
right for each port)
Green = The port is properly connected and able to communicate with its attached
devices.
Port Logged-in LED (on
top for each port)
6
196 Component Identification
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