Figure 7: Airflow Through the Router
Power Supply Cooling System
The power supply modules are self-cooling and are located in the rear of the router. Each power supply
module has it’s own built-in fan that cools the power supply module. The exhaust for the power supply
modules are also located on the rear of the chassis.
SEE ALSO
Maintaining the MX204 Fan Module | 122
Maintaining the MX204 Power Supplies | 126
Maintaining the MX204 Routing Engine | 115
Replacing an MX204 AC Power Supply | 128
Replacing an MX204 DC Power Supply | 130
Replacing an MX204 Fan Module | 124
MX204 Fan Status LED
The MX204 fan module does not have any LED—the fan status LEDs are located on the MX204 chassis.
Figure 8 on page 32 shows the fan status LEDs.
31
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