American access system ADV-1000 Betriebsanweisung PDF herunterladen (Seite 753)

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Contact: An electrical switch that can be open or

closed state. That state may be electrically,

magnetically or physically controlled.

Continuous Reads: A software setting that enables

a panel to continuously monitor a card reader and/or

keypad. If this is not enabled, all cards and

keypunches are ignored until the panel completes the

actions dictated by the previous card read or

keypunch.

Control Panel: A specialized computer that manages

access for specific doors and related devices (e.g., PW-

2000).

CPU: Central processing unit. It is the main chip

(microprocessor) in a computer and control panel.

Data: Information. At the lowest level, data is

represented as an electrical signal and is interpreted

as a code. At the highest level, data represents

information that people can read and understand.

DC: Direct Current.

De-energize: To remove energy from an output

point. On a system, the normal state of an output

point is

"de-energized."

Default: A standard condition or setting. Default

settings are those provided by software prior to

customization by the user.

Default Time Zone: A standard time zone that is

always in effect unless overridden by another process

or feature.

Dial-Up: (Also dial-in, dial-out) A system of control

panels connected to a communications line (loop or

multi-drop) that is not directly connected to a

computer. To communicate with the panels, the

computer must use a modem at its end to connect

with a modem on the communications line. The act

Glossary

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