The A-873-2C reverse link type features a locking device that users can operate remotely by using a rod or wire. It also includes an internal locking and unlocking mechanism that integrates seamlessly with the conventional control center. At the front, the key design is reversible and includes a dustproof shutter. Moreover, the built-in click mechanism enhances the operation by providing a reliable and tactile response. The flat design minimizes protrusions, making it both sleek and functional.

Furthermore, when users combine this unit with a snatch lock that includes a half-lock mechanism—such as models C-873, C-851, or C-1851—they can easily confirm whether the door remains half-open. This compatibility significantly improves safety and operational awareness.