ABB Bailey 6642016D2 External Relay Panel Termination Unit provides 16 digital-output relay channels for ABB Bailey INFI 90 control systems. Each channel is rated up to 300 V and 10 A, enabling direct switching of field devices from the INFI 90 network. As an external relay interface within the INFI 90 family, it implements 16-Channel DO-relay termination to connect I/O signals to relays. The unit is listed as discontinued by the manufacturer and is typically encountered in legacy INFI 90 installations.
