Dell XPS M1210 (MXC062, Mid 2006) - Manual (Page 127)

Adding and Replacing Parts
127
NOTICE:
To avoid damage to the WLAN card, never place cables under the card.
NOTE:
Your WLAN card may have two or three connectors, depending on the type of card you ordered.
NOTE:
If your computer has a gray cable, connect it to the connector with the gray triangle, if one is available on
your card. For more information about which cable to connect to which connector, see the documentation that
came with your WLAN card.
b Connect the two antenna cables to the WLAN card — connect the black auxiliary antenna cable to
the connector labeled with the black triangle, and connect the white main antenna cable to the
connector labeled with the white triangle.