... RS232, RS485, TCP /IP Proximity Time Attendance with Access Control and Camera M880 Introduction: M880 is a ... alarm, bell, lock, exit, switch, etcBuilt-in USB port allows for manual data transfer when network isn' ... Capacity50,000Transaction Storage150,000Hardware PlatformZEM510Operating SystemLinuxCommunicationsRS232485, TCP/IP, USB-HostCard SupportID Card(Standard), Optional HID/Mifare/ iClass ...