Installation Guide

Brocade MLX Series and Brocade NetIron XMR Installation Guide 33
53-1004195-02
Router modules
DRAFT: BROCADE CONFIDENTIAL
• 32-slot router: Supports 2100W AC, 2400W AC and DC, and 3000W AC and DC models. Accommodates eight power
supplies.The following redundancy configurations apply:
- If you are using 2100W AC power supplies, five are required and three are redundant (200-240 volts AC only).
- If you are using 2400W AC or 2400W DC power supplies, four are required and four are redundant (200-240 volts AC
only).
- If you are using 2100W and 2400W power supplies (AC or DC) in combination, five are required and three are redundant.
- If you are using 3000W AC or DC power supplies, four are required and four are redundant.
Because power is supplied over a common power bus, any power supply installed in addition to required power supplies
provides backup for any power supply that fails.
Power supply interoperability
For Brocade MLX Series and NetIron XMR 32-slot devices, you can mix 2400W and 3000W power supply units.
For Brocade MLX and NetIron XMR devices, only the 8-slot and 16-slot router power supplies are interchangeable. The 4-slot and
32-slot power supplies cannot be used in 8-slot or 16-slot Brocade MLX or NetIron XMR devices.
For power supply specifications, refer to <Link>“Power specifications” on page 277.
Power supplies are installed in slots along the bottom of 8-slot, 16-slot, and 32-slot routers. Power supplies are installed in slots in the rear
of 4-slot routers.
Power supplies provide power to all router components, share the workload equally, and report status to the management module. If the
management module detects that a power supply has failed or overheated, the management module redistributes the workload of the
failed power supply to the remaining power supplies.
Power supplies generally have three LEDs on the faceplate that provide status for input power, output power, and notification of alarms. If
the input power and output power LEDs are on (steady green), the power supply is providing power to the router components. For more
information about power supply LEDs, refer to the AC and DC power supply sections in Table 24 on page 120.
NOTE
After a power supply is removed from a router, the software determines if there is enough power to operate all of the interface
modules. If there is not enough power, some interface modules will be powered off.
NOTE
If you want to perform a hitless upgrade, replace one power supply unit at a time, and make sure the device has at least +1
redundancy at all times.
Power supplies are hot-swappable, which means they can be removed and replaced while the router is
powered on and running. However, Brocade recommends that you disconnect a power supply from the
power source before removing and replacing the supply. The 4-, 8-, and 16-slot router can be running
while a power supply is being removed and replaced, but the power supply itself should not be connected
to a power source. Otherwise, you could be injured, or the power supply or other parts of the router could
be damaged. (In the 32-slot router, you cannot unlatch and remove a power supply without first releasing
the cord retainer and removing the power cord.)