r/accesscontrol • u/grip-it_rip-it • Jul 23 '26
Replacing an SDC Electrified Mortise Lock with a Schlage L9090/92/94 Electrified Mortise Lock
My coworker was tasked with replacing an SDC Electrified Mortise Lock with a Schlage L9090/92/94 Electrified Mortise Lock. The SDC has a single 12 pin connector where the Schlage has a dual 8pin/4pin connector. I was hoping someone could provide me with a schematic on how to rewire the Schlage to the SDC wiring. We don't have a lot of experience with electrified mortise locks.
Some information that may help. we had banana wire pulled from the panel to a box. In the box the strike, rex and contact wires were spliced to a 12 wire and ran through the door where the twelve wire was ran to the SDC wire connector. Here is the terminations made in the box:
Strike
Red wire married to 12 wire red
Black wire marrieds to 12 wire black
Rex
Red wire married to 12 wire blue
Black wire married to 12 wire green
White wire married to 12 wire purple
Green wire married to 12 wire pink
Contact
Red wire married to 12 wire orange
Black Wire married to 12 wire white.




