Features 1、Fire and alarm linkage. If there is no connection with the expansion board, only the software interface will alarm and drive the computer loudspeaker. If connected to the expansion board, it can be alarmed by hardware, and if connected to the strengthene 2、High Speed Memory protection measure to ensure records never when power interruption. 3、Alarm for invalid card swiping, long time door open and illegal break in first card unlocking. 4、Support remote unlocking, offline operation and real time supervision. 5、Normal shift&multi-shifts time attendance management.Convenient to check and query,report exported to excel which revisable and printable report form,unlocking at definite time. Specification Features: Flexible user rights settings, quick settings, support for multi-user supervision. Normal shift&multi-shifts time attendance management.Convenient to check and query,report exported to excel which revisable and printable report form,unlocking at definite time. Multi-card unlocking, supporting card unlocking, password unlocking, and card+password unlocking. Support remote unlocking, offline operation and real time supervision. Alarm for invalid card swiping, long time door open and illegal break in first card unlocking. Widely used for professional users such as banks,cash houses, prisons telecom stations,plice stations, integrated fire controls, anti-passback and anti-tail. Emergency double locking based on internal and external validation. High Speed Memory protection measure to ensure records never lose when power interruption. Mass memory capacity for storaging photoes and records. Fire and alarm linkage. If there is no connection with the expansion board, only the software interface will alarm and drive the computer loudspeaker. If connected to the expansion board, it can be alarmed by hardware, and if connected to the strengthened expansion board, it can be alarmed safely. Specifications: Communication: TCP/IP Software Supportable Database: Access & SQL Power Supply: Input: DC 12V, 4 ~ 7A Power Consumption of Circuit Board: Less than 100mA Input Format of Reader: Wiegand 26 bit (All card reader with compatible protocol, such as for Motorola, for HID, for EM, etc) Quantity of Readers: 4 Units Door Controlled: 4 Door Opening Time Extending Setting: 1 ~ 600 seconds (adjustable) Max Quantity of Controller: No Limit Operating Temperature: -40°C ~ 70°C Operating Humidity: 10% ~ 90% RH, No Condensation Quantity of Users: 20,000 users Quantity of Event Buffers (offline): 100,000 event buffers Power Interruption Protection Measure: High speed memory, records never lose Max Distance from Reader to Controller: 100m (suggestion distance 80m) Max Distance between Controllers: Depends on Net Coverage Area Complsive Open and Close Door at Long Time: Yes Open Door in Remote Distance: Yes Inter Block: Yes Anti Passback and Tail: Yes Multi-Card Open Door: Yes Open Long Time at Specified Time: Yes Electronic Map: Yes Locking Urgently: Yes First Card to Unlocking: Yes Unlock Based on Internal and External Validation: Yes Keypad (card + password, super password): Yes Size: 18*11.5*2.5cm/7.0*4.5*1.0in Package Weight: 319g/11.2oz Package List: 1 * Access Controller for Wiegand 4 Door Use 1 * Software CD 1 * User Manul Notes: 1.This equipment is used to control the electric strike lock or elecric magnetic lock,if other control equipment, please contact with our engineers. 2.Please allow the slight error due to manual measurement. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.