EIA
Stands for Electronics Industry Association, an association that created the standard for B/W television in the USA, Canada and Japan.
ELC (Electronic Light Control)
Compensates for moderate light changes in indoor applications without the use of auto iris lenses. Select this mode when a fixed iris lens or manual iris lens is used.
Electronic Shutter
Compensates for moderate light changes in indoor applications without the use of auto iris lenses.
EMI
Electro-Magnetic Interference.
Ethernet
The most widely installed Local Area Network (LAN) technology. Specified in a standard IEEE802.3.10/100 BASE-T, the most commonly installed Ethernet system, provides transmission speed up to 100 megabits per second.
EVC
Enhanced Video Connector, one of digital video connectors.
Extranet
A private network. It uses the Internet Protocol to securely share part of a business information with suppliers, vendors or others.
Encoder/Decoder
A device that encodes/decodes video from an analog/IP camera and transmits it to a NVR/DVR.
Electric Door Lock
A remotely operated electric locking device. See Electric Strike, Electromagnetic Lock.
Electric Strike
An electric door lock that requires power to be applied to unlock a door.
Electromagnetic
A general term referring to the electric and magnetic fields associated with the movement of electrons through conductors.
Electromagnetic Lock
An electric door lock that uses an electromagnet to hold a door closed. See Magnetic Lock.
Embossed Card
An access control card that uses a raised pattern as a means of encoding data.
EMI
See Electromagentic Interference.
Encoding
The process of writing data to a card.
Entrance Delay
See Door Held Open Time.
EPROM
An acronym for Erasable Programmable Read Only Memory.
Event
An occurrence at a controller (such as unlocking a door, requesting to exit, forcing a door open) that generates a message stored by the controller.
Exit Alarm
A device that indicates (either audibly or silently) that a secure door has been forced opened.
Exit Lock
A push-bar door lock that spans the width of the door, used for emergency exit. An Exit Lock may be connected to an Exit Alarm.
Exit Reader
A reader used to control exiting from a secure area.
Exit Switch
A switch that is used to initiate a Request to Exit. See Request to Exit.
