are power supplies requiered for electric locking trim

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Follow the steps below to troubleshoot the problem. Measure the voltage at the electric strike. If the strike is FSE and not locking there should be no voltage at the strike and if it is FS there ...
Electrical hinges or a power transfer units are the most commonly used practices to run electric power to locks and/or strikes. Electric Hinges: Most electric hinges will fit into...
The PS861, PS873, or PS902 power supply can be used to operate the Von Duprin E996L trim.
The Von Duprin E996L trim required .22 amps at 24VDC.
For standard (non-IC) cylinders, use the Falcon #4 straight cam For IC cylinders, use the Falcon #5 cam 
The Exit Only (EO) device will accept any 19 Series trim as the main cam for the trim input is always put on the device center case.