UHPPOTE Power Supply Converter Input AC110V Output 2VDC/3.5A and Wiegand 26 bit Access Control Board Input: AC110V Control of memory up to 20,000 user / Up to 100,000 event buffers Network communication via TCP/IP Input Format of Reader: Wiegand 26 bit (All card reader with compatible protocol, such as Motorola, HID, EM, M1, etc) Software Supportable Database: Access & SQL Communication: TCP/IP Software Supportable Database: Access &amp; SQL Power Supply Input: DC/12V Input Format of Reader: Wiegand 26 bit (All card reader with compatible protocol, such as Motorola, HID, EM, M1, etc) Quantity of Readers: 4 units Door Controlled: 4 door (Get in the door by swiping card, and get out door by button) Quantity of Users: 20,000 users Quantity of Event Buffers (offline): 100,000 event buffers Max Distance from Reader to Controller: 100m/328ft (suggestion distance 80m/262ft) Alarm for Long Time Door Open, Unlawful Entry, Intimidate Fire and alarm linkage: If no connection with the expansion board, only has software interface alarm, and drive the computer speaker. If connected with expansion board, is able to alarm by hardware, if connected with strengthened expansion board, then is able to Security alarm Compulsive open and close door at long time: Yes Open door in remote distance: Yes Inter block: Yes Anti pass back and tail: Yes Multi card open door: Yes Open long time at specified time: Yes Urgency locking: Yes First card unlocking: Yes Built-in reverse surge protection and Short-circuit protection function With charge and discharge function,can add a 7AH 12V lead-acid battery,can meet the needs of an electric mortise lock,a card reader and a controller to work 35 hours after power failure (External battery not included) Setting automatic protection function, built-in fuse Two +12V and two GND terminals 1 x Access Control Board 1 x Metal Power Box 1 x CD Offline operation Real time supervision Photo display when valid card Mass storage Flexible user privilege setup Remote unlocking Multi-user supervision Quick setting Convenience checking and query. Revisable and printable report form Report can be exported to excel file Multi ways access Alarm for long time opening Alarm for invalid card swiping Alarm for unlawful entry Unlocking at definite time e-map Interface locking Intimidation alarm Integrated fire control Anti passback and anti tail Interlocking Multi-card unlocking Emergency double locking Indoor population checking Unlocking based on internal and external validation Please search ASIN:B00UX02NDY for get the expansion board This demo for fail safe lock. Need connect to NO port of controller if the lock is fail secure. 1 x Control Board 1 x Metal Power Box 1 x CD