Hardware Specifications
September 2007 © 2007 Foundry Networks, Inc. 6 - 3
Cooling
The FGS chassis has two single-speed fans that operate simultaneously. If one fan fails, it does not affect the
operation of the other fanThe cooling fans cool the CPU, main memory, and voltage regulators. The fans use
either a push or pull configuration to move the air from the left side of the device to the right side of the device as
shown in Figure 6.1.
• Total cooling capacity: 120 watts
• Total air flow: 80 LFM
• Fan operating noise: < 51 dB-A.
NOTE: Operating noise is based on the ISO 7779 standard.
Figure 6.1 Internal airflow
Regulatory Compliance
Table 6.3 lists the Electromagnetic Compatibility (EMC), Immunity standards, and safety agency approvals for the
FGS family of switches.
Table 6.3: Chassis Regulatory Compliance
Description Certifications
Electromagnetic Emissions CISPR-22 Class A
EN 55022
FCC Class A (Part 15)
VCCI Class A
Immunity EN 50024:1998
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25
X4-2XG

Air inlet

Air exhaust