802.11n card 42T0825 installation (antennas)

hi gurus here:
i got the new 802.11abgn card (42T0825) and ready to get it installed without adding the third antenna. but with existing two antennas (one is grey and one is black), the card has three connectors. so my question is: which two connectors should i use?
thanks

If it's the same connectors as on my N-card, the #3 one is the one in the middle, and the one you should not use (it's for the white antenna-cable you don't have).
Which ones you connect to #1 and #2 doesn't really matter, but the sequence is grey, white, black, so grey for 1 and black for 2.
IT-technician, running my own company in Bergen, Norway
Thinkpad T61, 8895CTO C2D 2Ghz/4GB/120GB SSD/1400x1050

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