HID VERTEX V2000 CONTROLLER IS CAPABLE OF CONTROLLING 2 DOORS WITH 2 READER INTERFACE AND 2 DOOR LOCKS. HID VERTEX V1000 PERFORMS AS MASTER CONTROLLLER WITH V100 SLAVE CONTROLLERS THROUGH RS 485 C0MMUNICATION BETWEEEN CONTROLLER AND READER INTERFACE MODULES WITH HID ICLASS PROXIMITY READERS CARDS. HID VERTEX V2000 MULTI DOOR CONTROLLER COMES WITH METAL ENCLOSURE POWER SUPPLY DOOR ACCESS CONTROL AND TIME ATTENDANCE WEB SOFTWARE AND ACCESSOREIS LIKE EM LOCKS HID CARD READER EXIT PUSH BUTTONS AND EDR SWITCHES.