Latitude 5550 Owner's Manual

Installing the 4G WWAN card

About this task

NOTE:The 4G WWAN card is available only on certain configurations. It is connected to the system with two antenna cables.

The following images indicate the location of the 4G WWAN card and provide a visual representation of the installation procedure.

1. Align the notch on the 4G WWAN card with the tab on the 4G WWAN-card slot.
2. Insert the 4G WWAN card at an angle into the 4G WWAN-card slot.
3. Connect the antenna cables to the 4G WWAN card.

   The following table provides the antenna-cable color scheme for the 4G WWAN card that is supported on your computer.

   Table 1. Antenna-cable color scheme for 4G WWAN cardsThe following table provides the antenna-cable color scheme for the 4G WWAN card of your computer.

   Connectors on the WWAN card	Antenna-cable color	Silkscreen marking
   Main	White	MAIN	△ (white triangle)
   Auxiliary	Black	AUX	▲ (black triangle)

4. Align the screw hole on the 4G WWAN-card bracket with the screw hole on the 4G WWAN card and palm-rest assembly.
5. Replace the screw (M2x3) that secures the wireless-card bracket to the wireless card and the palm-rest assembly.
6. Align and place the 4G WWAN-card shield on the 4G WWAN card.