About Electric Lock.

Power to lock=Fail secure SL-120,SL-130,SL-300/320
Power to unlock=Fail safe SL-100,SL-200/220,SL-300F/320F

What is out-swing door?

Out-swing door means a person pulls the door to get in from outside. 
Electric lock has to be installed inside without bracket 
Please refer to the diagram below.

Note :For the ease of installing out-swing door user could use EB-200/220 (Armature plate housing) or  SB-200/220 (Armature plate bracket)
　

What is in-swing door?

In-swing door means a person pushes the door in from outside.
 Electric lock has to be installed inside with bracket (BR-200, BR-220)
 in order to prevent any attempt vandalize from outside. 

Note :
Regardless the type of door used, the lock must be installed or mounted indoors.