The fan module dissipates heat for the chassis so that the chassis can work properly and efficiently within the operating temperature range.
Noise reduction
When the fan module is powered on, it rotates at 48% of the full speed for at most 5 minutes. After the fan module communicates with the MPU normally, the MPU controls running of the fan module.
Automatic fan speed adjustment
After the fan module communicates with the MPU normally, the MPU controls the speed of the fan module according to temperature of cards in the chassis.
Alarm report
The fan module can report alarms on fan module failures and communication failures.
Electronic label
The MPU reads and loads the electronic label of the fan module through RS485.
Hot swapping
Supported
Technical specifications of the FAN-240SA-B
Item
Specification
Dimensions without packaging (H x W x D) [mm (in.)]
361 mm x 129 mm x 143 mm (14.21 in. x 5.08 in. x 5.63 in.)
Weight without packaging [kg (lb)]
3.3 kg (7.28 lb)
Number of fans
2
Typical power consumption [W]
18 W
Maximum power consumption [W]
180 W
Maximum airflow [CFM]
580 CFM
Maximum wind pressure [Pa]
652.8 Pa
Airflow direction
FAN panel side exhaust
FAN-240SA-B FAQ
Q1: Which Huawei switch models are specifically compatible? Can it directly replace the old fan?
A1: Compatible with Huawei S5700 (S5720/S5730, etc.), S6700 (S6720/S6730, etc.), and the entry-level S7700 (S7703) series; the installation dimensions and interfaces are consistent, and the old fan can be directly replaced without additional configuration.
Q2: Can the fan noise really be controlled below 60dB? Is it quieter under low load?
A2: The noise level is ≤60dB under full load. Under low load, the fan speed intelligently reduces the noise level to 50-55dB. Suitable for noise-sensitive branch offices and server rooms near office areas.
Q3: How many of these fan modules are needed per switch?
A3: 1-2 units are needed for each S5700/S6700 series switch, and 2 units are needed for the S7703. It is recommended to equip the switches according to the original factory configuration to ensure heat dissipation.
Optical Modules Supported by Huawei S Series Switches
