Can I use the 996 L NL "Rigid" lever trim with the E7500 mortise lock?

NO, the Von Duprin E7500 mortise lock locks/unlocks the 996 L M lever with electric power.  You CANNOT use a RIGID lever trim with the E7500 mortise lock.  The lever must be ACTIVE for the E7500 to properly lock/unlock the lever function.  The mortise cylinder key will retract the latchbolt in the E7500 mortise lock for key entry in case of Fail Secure lock function. 

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