The Master Controller AM8046 is a powerful controller designed for automated locker system for self-service parcel delivery and pick up. It is featured by multi interfaces for TCP/IP, RS485, 4G and WIFI communication. By connecting to reply boards, the system can be expanded to 984 channels. The parcel locker system enables users to receive parcels 24 hours a day in a convenient, secure way, especially convenient for people who are not at home in the daytime to accept deliveries or confidential mail.