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).
The first IP reader was introduced in 1999 by Isonas Security Systems Inc.
HID Global, one of the major manufacturers in access control reader and card business, followed the move into network-based security systems only 8 years later, by introduction of the Edge IP reader family in 2007.
Biometric reader manufacturers Sagem Securite and Suprema Inc. also added IP readers to their product line-up.
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