The Adams Rite 31-0265-01-IP is used on the current versions of their devices for Cylinder Dogging. Cylinder Dogging is when you have a Mortise Cylinder to lock the device in the unlocked positions (Dogged). Very similar to the Hex Key Dogging Assembly, but the mounting plate is longer.
The Adams Rite 31-0619 is the Circuit Board that controls the Motorized Latch Retraction on the 8000 and 3000 Series Exit Devices. It is also known as the PCBA: SE Main (Black).
Adams Rite 91-0993-IP 8700/8800 Strike is used on the rim devices that have the Star Wheel Latching System. The strike measures 2-3/4" long by 1-3/4" wide and projects out approximately 1/2". Kit comes with mounting screws and two shims.