BOSTON (AP) — A passenger door on a Boston subway car did not function properly when a man got his arm stuck in it and was dragged to his death last month, federal investigators said Monday. The ...

Note: This is the second part of Ray’s July/August column of the same name. Q: Is there a standard or common convention for naming doors in an access control system? A: There is no single standard, or ...

Camden Door Controls, a provider of door activation and locking products, announces it upgraded its CV-603 BLE two-door access control system with virtual credentials. With the upgrade, the system can ...