Install the WLAN antennas

Follow instructions in this section to install the WLAN antennas.

Procedure

1. Locate the corresponding connector to install the WLAN antenna.
   Figure 1. Locations of WLAN antennas
   
   

   Note

   The orientation of the following table aligns with the above illustration.

   1 Antenna 1 (XCC WLAN)	4 Antenna 4 (x86 WLAN)
   2 Antenna 2 (XCC WLAN)	3 Antenna 3 (x86 WLAN)

2. Make sure the corresponding SMA assembly is installed properly. See Install the SMA assemblies.
3. Make sure the SMA connectors are fully extended. If necessary, turn the screw between the two SMA connectors counterclockwise to extend the SMA connectors.
   Important

   When the SMA connectors are fully extended as shown in the following illustration, STOP turning the screw counterclockwise. Turning the screw excessively might cause damage to the components.

   Figure 2. Extending the SMA connectors
   
   
4. Place a washer between the antenna and the server if necessary; then, rotate the antenna clockwise until it is firmly secured to the chassis.
   Note

   The suggested fastening torque is 3.5 Kgf-cm.

   Figure 3. Installing a WLAN antenna
   
   

   Note

   The optional kit of antenna comes with a washer. However, the washer is an optional part that enhances friction, and is not required in general scenarios. Consider applying it when necessary.