Installation Guide

Table Of Contents
Brocade MLX Series and Brocade NetIron XMR Installation Guide 35
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Router modules
4-slot router: Equipped with a fan assembly that contains two 4-speed fans and two fan controllers to support redundancy.
8-slot router: Equipped with a fan assembly containing four 4-speed fans and four fan controllers to support redundancy.
16-slot router: Equipped with three fan assemblies. The fan tray located in the lower front of the router contains six 4-speed
fans. There are two fan assemblies located in the rear of the router. For Brocade MLX-16 routers, each fan assembly contains
one 4-speed fan. Eight fan controllers support redundancy. High-speed fans for Brocade MLX-16 routers are identified in the
show chassis command output in the following manner:
Rev A Back Fan A-1: Status = OK, Speed = LOW (50%)
Rev A Back Fan A-2: Status = OK, Speed = LOW (50%)
32-slot router: Equipped with ten fan assemblies located in the rear of the router. Each fan assembly contains a 4-speed fan.
The fan trays support four settings, 50%, 75%, 90%, and 100%, as the normal fan speeds, which are set by the management
module.
Figure 26 and Figure 27 show the fan locations for 4-slot and 8-slot routers. Figure 28 and Figure 29 show the fan locations for 16-slot
routers. Figure 30 shows the fan locations for 32-slot routers.
FIGURE 26 Fan locations for Brocade MLX and NetIron XMR 4-slot routers
1 Fan module