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Power cords are available from Brocade. Power cords are 6 m (19.68 ft.) long and contain three colored 14
AWG unterminated wires which are described in the following table:
Table 30. HVAC/HVDC power cable wiring
Label (color)
(black)
(green with yellow stripe)
(red)
Power cords have an Anderson Saf-D-Grid
wires on the other end for attaching to AC or DC power sources. Attach either an AC power plug to
these wires that meets your facility and local code requirements or connect wires to appropriate DC
power terminal blocks.
Precautions specific to power supply assembly
Observe the following precautions when replacing the power supply assembly.
Note: Depending on the blade configuration of the device and the number of power supplies installed,
the device may be able to continue operating while replacing a power supply. Refer to "Power Supply
Requirements" in Appendix B, "Product Specifications," on page 231 for minimum power supplies
required for AC low and high voltage line operation, redundancy in case of power supply failure, and
other specifications. If there is insufficient power, the device will start powering down blades until the
power demand can be met.
Note: A device with slots for eight port blades can have up to four power supplies installed. If you are
adding additional power supplies, you can use the procedures in this section under "Installing a power
supply" on page 168 to install the new power supplies. Be sure to follow steps on those procedures to
enable sending notifications if the additional power supplies should fail.
Note: Make sure that captive screws securing power supply assemblies to chassis are tightened. If not,
high pressure from fans operation may unseat power supply assemblies from chassis connectors.
Refer to "Safety precautions" on page 7 for caution and danger notices related to installing power
supplies.
Power supply assembly fault indicators
Use one of the following methods to determine if a power supply is faulty:
v Check the power supply status LED.
– The LED may take up to 10 seconds to illuminate. If LED does not illuminate, the power supply has
no incoming power. Check if power supply is properly seated in backplane connector. Check power
source to power cord.
– If LED is flashing green, the power supply may be faulty.
For more information on LED operation, refer to"Interpreting power supply LEDs" on page 93.
v Enter psShow. If status of power supply displays absent or faulty, check if power supply assembly is
seated in chassis. If it is, power supply could be faulty.
v Enter sensorShow to determine if a power supply is running above average temperatures of other
installed power supplies.
v Enter errDump to display the system error log. Refer to the Fabric OS Message Reference for more
information on the messages in this log.
Function
Negative (-)
Earth ground (PE)
Return positive (+)
®
400 connector on the power supply end and unterminated
Power Supply Assemblies
165
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