What does LLL stand for on Schlage mortise lock trim

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The AD200, 250, 300, and 400 trims will work with the Von Duprin 98/9975 mortise Exit Devices.
The Schlage CO-220 is standalone classroom lock down solution with remote fob and visual indicator which allows immediate local lock down by simply pushing the button on the remote fob from anywher...
To convert the Von Duprin 9975NL(Night Latch or Storeroom) to 9975L (Classroom) exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL ...
To convert the Von Duprin 9975L to 9975NL exit function follow these steps (Note: the mortise lock is shipped as Night Latch from the factory): Turn the NL screw on 7500 mortise lock counter clo...
No parts are compatible between the Falcon MA-Series and the obsolete Falcon M-Series.
The MA lock does not have Vandlgard or a breakaway trim feature, however, the lever spindle on the MA lock will shear if too much force is applied in order to prevent internal lock damage and resis...
Typically for a 1-3/4" door you would use a 1-1/4" cylinder.  Use the Table in the Pricebook for a reference:  
To order less complete trim one side use LLL as the designation for less complete trim outside or inside. This applies to the L9000 & LM9300 Series mortise locks. LESS OUTSIDE TRIM Examp...
The L283-150 is a modified mounting plate to allow a user to only install trim on the inside of the L9000.  For installation and door prep requirements, see the install sheet.  Add...
Outside Knob/Lever and Rose/Escutcheon Assemblies      Part Number  Description    A Rose with Knob/Lever  09-506  Designs: 01 02 03 05 06 07 12 17 18 OME 41 42     09-655  Des...