American access system ADV-1000 Guia do Utilizador descarregar pdf (Página 764)

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764 WIN-PAK User Guide

Push Bar: A door-unlatching device. When pushed,

it releases a lock. If the push bar is connected

electronically to the controller, it signals the

controller that an egress event has taken place.

RAM: Refers to random access memory used in a

computer or control panel.

Reader: Any device that reads encoded information

from a card or token and transmits the information

to a control panel.

Real Time: Processing events as they happen.

Redundant: Having two or more ways of doing

things. Redundant hardware indicates that two or

more items exist for every single function. The

duplicate hardware can replace failing hardware at a

moment’s notice.

Re-enable: Return the system to normal operation.

Relay: An electronically operated switch that, when

activated by a change in conditions on an electronic

circuit, activates other devices on the same or

another electronic circuit.

REX: Request-to-exit device. Refers to a button,

pushbar or similar device that allows free egress

without setting off an alarm.

RFI: Radio frequency interference.

Secure: To arm or enable.

Serial Port: A plug on a computer that is normally

used for communications functions. These functions

include attaching a computer to a modem, or a

computer to communications loops that are connected

to control panels.

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American access system ADV-1000 Guia do Utilizador Página 764

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