Cascadia Digital video recorder Bedienungsanleitung PDF herunterladen (Seite 12)

CCTV Glossary

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EBU - European Broadcasting Union.

EIA - Electronics Industry Association, which has recommended the television standard used in the

US, Canada and Japan, based on 525 lines interlaced scanning. Formerly known as RMA or

RETMA.

Encoder - A device that superimposes electronic signal information on other electronic signals.

Encryption - The rearrangement of the bit stream of a previously digitally encoded signal in a

systematic fashion to make the information unrecognizable until restored on receipt of the

necessary authorization key. This technique is used for securing information transmitted over a

communication channel with the intent of excluding all other than authorized receivers from

interpreting the message. Can be used for voice, video and other communications signals.

ENG camera - Electronic News Gathering camera. Refers to CCD cameras in the broadcast

industry.

EPROM - Erasable and programmable read only memory. An electronic chip used in many

different security products that stores software instructions for performing various operations.

Equalizer - Equipment designed to compensate for loss and delay frequency effects within a

system. A component or circuit that allows for the adjustment of a signal across a given band.

Ethernet - A local area network used for connecting computers, printers, workstations, terminals,

etc. within the same building. Ethernet operates over twisted wire and coaxial cable at speeds up

to 10 Mbps. Ethernet specifies a CSMA/CD (carrier sense multiple access with collision

detection). CSMA/CD is a technique of sharing a common medium (wire, coaxial cable) among

several devices.

External synchronization - A means of ensuring that all equipment is synchronized to the one

source.

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Cascadia Digital video recorder Bedienungsanleitung Seite 12