Dell Latitude D631 (Early 2009) - Manual (Page 129)

Adding and Replacing Parts 129
NOTICE: To avoid damaging the Mobile Broadband card, never place cables on top of or under the card and
ensure that you route the cables properly.
NOTE: For more specific information about which cable to connect to which connector, see the documentation
that came with your Mobile Broadband card.
c
Connect the white antenna cable to the connector on the card marked with a white triangle;
connect the black antenna cable to the connector on the card marked with a black triangle.
Subscriber Identity Module (SIM) Card
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
1 Follow the procedures in "Before You Begin" on page 113.
2 Remove the battery (see "Replacing the Battery" on page 36).
1 Mobile Broadband card 2 antenna cables (2)
1 2