Download here for Functional List, Dimension, Technical Specification, and Model Selection. DOWNLOAD TIME CLOCK CONTROLLERModel: BS501T, BS36T Features; Guarantee no transaction lost by ensuring proper card read, robust communication handling and transaction recovery. Storage Capacity up to 10,000 cards and 10,000 time clock transactions. Hardware and software watch dog double protection to ensure the time clock controller will not crash. Real-time uploading of transaction data to PC via RS-232, RS-485 or TCP/IP. Valid and Invalid card will trigger different relay and different buzzer sound indication Support build-in reader module such as EM, Mifare, HID, TI, Type B and CPU card. Time adjustment function either using controller keypad or synchronize timing from PC. Data storage full indication. LCD will show storage full message and prohibit time clocking. CE Certified.