ZyXEL Communications Omni 56K USB Lite Bedienungsanleitung PDF herunterladen (Seite 66)

Glossary

Anti Passback

A feature that prevents a user from giving his or her code/tag to someone else to use. A user code/

tag must be used to enter then used to exit before it can be reused to enter again. This feature

requires one Reader for entry and a second Reader for exit.

Real Antipassback

A valid and authorized user is granted access at the ‘IN’ reader and cannot re-use the code/tag to

regain entry into the zone until the same card has been used to leave the area.

Timed Antipassback

A valid and authorized user is granted access at the ‘IN’ reader and subsequently cannot re-use

the code/tag to regain entry into the zone until a pre-set time period has elapsed.

Mantrap

The Mantrap function can be used for an area having two doors. This function is used to prevent a

door opening while another door is open. It is a special configuration where one door must be closed

before another door can open as in an "airlock" situation.

Priority codes

Priority codes are the codes with more rights. The PRO T&A allows for programming of up to 10

Priority codes at memory location from 990 to 999 for using in case of emergency situations. These

Priority codes are given "FULL" access as it is granted "Always Access" at any reader.

The Priority codes can be used in emergency situations such as:

Communication problem with O2LA.

System failure or power supply interruption to the O2LA.

These Priority codes are for Security Maintenance personnel or for Administrator.

Note: Programmed settings of Anti-Passback or Mantrap for the O2LA are disabled for these

codes.

Duress Code

Duress codes are intended for use in situations where a user is forcefully and unlawfully compelled

to open a door by an aggressor, for example. In such a situation a user can employ a duress code

instead of their personal code to gain access. Unknown to the aggressor, use of the duress code

activates Output T4, which can be connected to a silent alarm (e.g. an auto dialer).

Free Access

A special programming feature to enable 1 door in the system to remain open for 2 preset time

periods without need for card/tag validation. Useful, for example, to keep a parking lot gate open

during the start and close of office hours.

Readers

Readers are slave units that operate with the controller. They can be either a keypad or proximity

reader with 26-bit Wiegand protocol. XPR’s proximity readers read only EM4002 formatted cards. If

other readers are used, then specifications need to be checked for compatibility.

RS232

A common type of computer interface for serial data transmission over distances of less than 15

meters or 50 feet. Employs a standard 9-pin D-type connector. The O2LA system uses the RS232

interface to connect to a computer, printer or modem.

Tag

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