Brocade FastIron SX Series Chassis Hardware Installation Guide - Manual (Page 159)

Chassis power surge and drop protection TABLE 31
Property Protection Mechanism
Power surge MOV and Spark Gap protection
Power drop An AC loss of >15ms will cause the power supply to shut down due to input under-voltage
Mean time between failure
The table below lists the Mean Time Between Failure (MTBF) for the FastIron X Series chassis devices
and modules. The MTBF is the average estimated time, in units of hours, before a hardware failure may
occur.
MTBF for the FastIron X Series chassis and modules TABLE 32
Configuration or Module Temperature MTBF (hours)
FSX
FSX chassis + fan module + backplane 40 ° C 1,003,172
FSX chassis + fan module + backplane + one AC power supply 40 ° C 269,386
FSX chassis + fan module + backplane + one DC power supply 40 ° C 272,432
AC power supply (non-POE supply) 40 ° C 368,282
AC POE power supply 40 ° C 139,000
DC power supply 40 ° C 374,000
FSX Management Modules
IPv6 Management Module with 256 MB SDRAM and no optics 40 ° C 292,557
IPv6 Management Module with 256 MB SDRAM and 12 optics 40 ° C 211,053
IPv6 Management Module with 512 MB SDRAM and no optics 40 ° C 287,425
IPv6 Management Module with 512 MB SDRAM and 12 optics 40 ° C 208,369
IPv4 Management Module with no optics 40 ° C 287,664
IPv4 Management Module with 12 optics 40 ° C 152,154
SX-FI-2XGMR-XL and the SX-FI-2XGMR-XL-PREM6 management modules 40 ° C 506,155
FSX 800
FSX 800 + fan module + two switch fabric modules 40 ° C 230,584
Mean time between failure
Brocade FastIron SX Series Chassis Hardware Installation Guide 157
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