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354 Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide
53-1002373-02
Replacing a power supply
8
Cabling a fiber-optic transceiver
To cable a fiber-optic transceiver, perform the following steps:
1. Before cabling a fiber-optic transceiver, it is strongly recommended that you clean the cable
connectors and the port connectors. For more information, refer to “Replacing a management
module” on page 350.
2. Gently insert the two cable connectors (a tab on each connector should face upward) into the
port connectors until the tabs lock into place.
Replacing a power supply
You can replace a power supply while the device is powered on and running. For the location of the
power supplies (AC or DC) refer to Chapter 1, “Product Overview”.
CAUTION
If you are hot-swapping a module, power supply, or fan tray, allow a minimum of two seconds
after a module (or power supply or fan tray) has been removed before inserting a module in the
same slot.
Determining which power supply failed
To determine which power supply has failed, enter the show chassis command at any CLI
command prompt.
Brocade# show chassis
This command displays status information for the fans and power supplies, and temperature
readings for various components in the device. The power supplies are numbered in the display.
Refer to “Displaying device status and temperature readings” on page 324 for more information.
If a power supply has failed, the display indicates “Installed (Failed)” and identifies the slot in which
the failed power supply is installed.
Setting the threshold for power supply monitoring
The power-supply monitoring threshold command monitors the power supply state, and indicates
when a power supply will shut down due to failure.
To set a threshold value for power supply monitoring, enter the following command.
Brocade(config)#power-supply monitoring threshold 3
A Power Supply will be Shutdown if it fails 3 times within an Hour
The power supply will flap three times within an hour, after which the power supply will
automatically shut down.
Syntax: [no] power-supply monitoring [threshold <decimal>]
The <decimal> variable specifies the number of flaps within an hour after which a power supply will
automatically shutdown. The threshold range is from 0 through 32. The default value is 5. A value
of 0 disables the power supply auto-shutdown on flapping.