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Brocade MLX Series and Brocade NetIron XMR Hardware ...

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Router modules 1The fan control modules include a bi-color LED, which indicates the status of the fans. Table 26describes the states of this LED.TABLE 25 <strong>Brocade</strong> <strong>MLX</strong>e-32 router fan control LEDLED Position State MeaningFan control LEDRear of routeron the fanassemblyOffGreenThe fans are not receiving power.The fans are working <strong>and</strong> responding to comm<strong>and</strong>s from thefan control module.RedThe fans are not working <strong>and</strong> not responding to comm<strong>and</strong>sthe fan control module.The router ships with fan assemblies fully installed. Fan assemblies are hot-swappable, whichmeans you can remove <strong>and</strong> replace them without powering down the system.Cooling system for <strong>Brocade</strong> <strong>MLX</strong> <strong>Series</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> routersThe cooling systems for <strong>Brocade</strong> <strong>MLX</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> routers contain the followingcomponents:• 4-slot router: Equipped with a fan assembly that contains two 4-speed fans <strong>and</strong> two fancontrollers to support redundancy.• 8-slot router: Equipped with a fan assembly containing four 4-speed fans <strong>and</strong> four fancontrollers to support redundancy.• 16-slot router: Equipped with three fan assemblies. The fan tray located in the lower front ofthe router contains six 4-speed fans. There are two fan assemblies located in the rear of therouter. For <strong>Brocade</strong> <strong>MLX</strong>-16 routers, each fan assembly contains one 4-speed fan. Eight fancontrollers support redundancy. High-speed fans for <strong>Brocade</strong> <strong>MLX</strong>-16 routers are identified inthe show chassis comm<strong>and</strong> 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 fanassembly contains a 4-speed fan. The fan trays support four settings, 50%, 75%, 90%, <strong>and</strong>100%, as the normal fan speeds, which are set by the management module.Figure 37 <strong>and</strong> Figure 38 show the fan locations for 4-slot <strong>and</strong> 8-slot routers. Figure 39 <strong>and</strong>Figure 40 show the fan locations for 16-slot routers. Figure 41 shows the fan locations for 32-slotrouters.<strong>Brocade</strong> <strong>MLX</strong> <strong>Series</strong> <strong>and</strong> <strong>Brocade</strong> <strong>NetIron</strong> <strong>XMR</strong> <strong>Hardware</strong> Installation Guide 5753-1002373-02

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