Asus GigaX3112 - Manual (Page 108)

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GigaX3112 Series Layer 3 Managed Switch
Figure 77. Detaching the fan from the module
Fasten the new fan with the screws that you removed earlier. Make sure that the
fan cable is near the bottom of the module.
Follow the same steps to replace the other fan.
Connect the fan cables to the PCB. Make sure that the fan cables are connected
to the correct fan connector. FAN 1 is on the left side when you are facing the
rear panel.
Insert the fan module to the switch chassis until it fits in place. Make sure that
the fan power cables are not caught between the fan module and chassis.
Secure the fan module to the chassis with the thumbscrew. Check around the
fan module to make sure no cable is caught between the chassis and the fan
module.
Fan specifications
Dimensions: 40 x 40 x 20 mm
Voltage and Current: 12VDC, 0.13A
Speed: 8200RPM