IBM ThinkPad T30 2366 Hardware Maintenance Manual page 76

Removing and replacing a FRU
Antenna cables 5a and 5b are for the wireless LAN
feature, and 7 is for the modem feature. This slot also
supports a Mini PCI wireless LAN card. In case of you are
servicing the ThinkPad computer with the Mini PCI
wireless LAN card, skip the step 7 because the card
does not have the connector on the Mini PCI wireless LAN
card.
Note: When unplugging the antenna jack, do not pull the
cable; it might snap. Unplug the jack by pulling a
tab with your fingers.
When installing: Plug the gray antenna cable with the tab
(continued)
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ThinkPad T30 (MT 2366, 2367)
5a
5b
marked "MAIN" ( 5a ) into jack J1, and
the black antenna cable with the tab
marked "AUX" ( 5b ) into jack J2.
5a
5b