Lenovo B4400 Hardware Maintenance Manual page 47

Figure 7. Removal steps of Mini PCI Express Card for wireless LAN/WAN (continued)
Remove the card in the direction shown by arrow
When installing:
• In models with a wireless LAN card that has two antenna connectors, plug
the black cable (1st) (MAIN) into the jack labeled 1, and the white cable (2nd)
(AUX) into jack labeled 2 on the card.
• In models with a wireless LAN card that has three antenna connectors, plug
the black cable (1st) (MAIN) into the jack labeled 1, the grey cable (3rd) into
jack labeled 3, and the white cable (2nd) (AUX) into jack labeled 2 on the
card.
c .
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