Installation Guide

Table Of Contents
34 Brocade MLX Series and Brocade NetIron XMR Installation Guide
53-1004195-03
Router modules
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 “Power specifications” on page 279.
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 25 on page 122.
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.)
Rack mounting brackets
All routers ship with pre-installed mounting brackets that allow you to front-mount the router in a standard 19-inch (EIA310-D) rack. For
instructions about how to mount the router in a rack, refer to the installation chapter that is appropriate for your router model.
You can also mid-mount your 4-, 8- or 16-slot router in a rack using the brackets that ship with the router. You simply remove the
brackets from the front of the router and mount them midway along the sides of the router. For more information, see the installation
chapter appropriated for your router model.
Cooling system for Brocade MLX Series
and NetIron XMR routers
The cooling systems for Brocade MLX and NetIron XMR routers contain the following components: