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IP reader
IP reader is an electronic security device designed to identify users and control entry to or exit from protected areas.
==Operation==
An IP reader has two features that distinguish it from other access control readers:
# Unlike basic readers, IP readers do not require control panels and operate independently. A basic reader simply sends card numbers to a panel and does not control an electric lock, door contact or exit button. If the control panel fails, the basic reader stops working. An IP reader has inputs for monitoring a door contact, exit button and a relay for controlling an electric lock. It also has internal memory for storing the database of users, configuration parameters and recording events. Such readers are sometimes referred to as "intelligent readers" or "readers with built-in controllers".
# IP readers have an on-board network interface (10/100BaseT Ethernet or Wi-Fi).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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