Option, Door Status Switch - 2022 Series; Door Status Switch - 2250 Series; Door Status Switch - 2522 Series; Door Status Switch - 2268-20 Series; Door Status Switch - 2282 Series; Door Status Switch - 3002 Series; Door Status Switch - for the 3121C & 3121C2, for 2000 Series 1200 lb. Electromagnetic Locks / 2050 Series 1200 lb. Electromagnetic Lock / 2500 Series 650 lb. Mini and Bantam Mini Electromagnetic Locks / 2268 Series 1200 lb. Classic Low Profile Locks / 2280 Series 1200 lb. Slimline Locks / 3000 Series 1500 lb. Electromagnetic Locks / 3101C Series 1500 lb. Delayed Egress System (Generation II).