Alrighty -- This info, gleaned from the Emulex SC02 manual: Fujitsu 2311 and 2312 - Switch settings for * 35 SECTORS * SW2-1 ON SW2-2 ON SW2-3 ON SW2-4 OFF SW2-5 OFF SW2-6 OFF SW2-7 ON SW3-1 OFF SW3-2 OFF SW3-3 ON SW3-4 OFF SW3-5 OFF SW3-6 OFF SW3-7 OFF At least this will be something to go on, if you can't locate a manual. .. .