Installation guide

Table Of Contents
NOTE
Brocade NetIron CES/CER-4X-RT supports the XNI-CE-2000-FAN pre-installed or as a spare. All other
models support the NI-CE-2000-FAN.
The fans in the devices include six four-speed fans that operate at low speed, medium speed, medium-
high speed, and high speed based on the ambient temperature and configured or default temperature
thresholds. All fans operate simultaneously at the same speed. If a single fan fails within the assembly,
the fan tray should be replaced. The fan tray is hot swappable and the mean time to recover (MTTR) is
one minute.
The system uses a default or configured temperature threshold associated with it to determine at which
speed the fan should operate.
Product Overview
Brocade NetIron CES 2000 Series and NetIron CER 2000 Series Hardware Installation Guide 37
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