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/IPSoftware Supportable Database: Access & SQLPower Supply: Input: DC 12V, 4 ~ 7APower Consumption of Circuit Board: Less than 100mAInput 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 UnitsDoor Controlled: 4Door Opening Time Extending Setting: 1 ~ 600 seconds (adjustable)Max Quantity of Controller: No Limit Operating Temperature: -40C ~ 70COperating Humidity: 10% ~ 90% RH, No CondensationQuantity of Users: 20,000 usersQuantity of Event Buffers (offline): 100,000 event buffersPower Interruption Protection Measure: High speed memory, records never loseMax Distance from Reader to Controller: 100m (suggestion distance 80m)Max Distance between Controllers: Depends on Net Coverage AreaComplsive Open and Close Door at Long Time: YesOpen Door in Remote Distance: YesInter Block: YesAnti Passback and Tail: YesMulti-Card Open Door: YesOpen Long Time at Specified Time: YesElectronic Map: YesLocking Urgently: YesFirst Card to Unlocking: YesUnlock Based on Internal and External Validation: YesKeypad (card + password, super password): YesSize: 18*11.5*2.5cm/7.0*4.5*1.0inPackage Weight: 319g/11.2ozPackage List:1 * Access Controller for Wiegand 4 Door Use1 * Software CD1 * User ManulNotes: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.