... , or bell.Wiegand Output for connections to 3rd party access control panelsTechnical SpecificationCPU: 630 MHzMemory: 256M Flash, 64M SDRAMFace Capacity: ... -bell, DLST, Self-Inquiry, Work Code, Short Massage, T9 inputAccess Control Interface: Lock, door sensor, exit button, alarmWiegand Signal: Input & ... : 20%-80%Dimension: 193.6X165X111 mmNet Weight: 2.1kg Facial Time Attendance and Access Control