LE(2) or KE(2) (10) Entrance by knob or lever. Inside key locks or unlocks knob. Outside key retracts latch.
LE(2 O.C.) or KE(2 O.C.) (10) One cylinder locks or unlocks knob. Other cylinder retracts latch.
information on the Monarch exit devices can be found at:
http://www.monarchhardware.com/pc_listings.asp.