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Terms
Access point
Access point is a logical concept of access control system implying control of
passing through a door in one direction. It consists of reader, access control
panel (or it’s part), door supervision devices (like magnetic sensor, RTE etc.)
and door locking device. For instance, turnstile with two way passes has two
Access points – one for entrance and the other one for exit, door of this type is
called double-sided door. Door with a reader on one side has only one Access
point – Entry point, and it is called single-sided door.
Antipassback
Antipassback function is implemented in NDC-B052 access control panel to
prevent the situation when user gives his ID to another person after passing to
the premises. If this function is on, NDC-B052 tracks an ID position – Inside or
Outside the premises. On any attempt to pass in the same direction twice NDC-
B052 denies access and stores “Access Denied, Antipassback” event into the
Log.
Antipassback function can be set on, only in case of double-sided door control.
Global Antipassback
This function is similar to local Antipassback, but it works at several access
points simultaneously. All access points should be consolidated in a group for
Global Antipassback function application.
Code matching
NDC-B052 can arise alarm in case of attempt of code (or ID) matching. Code
matching is considered when invalid code (or ID) is entered several times. Valid
code entrance clears the counter. This function switching on and number of
code entries can be programmed on PC.
Door Sensor
In access control systems various sensors are used to control door status
(opened or closed) – magnetic door sensor, sensor of the turnstile rotor
position, inductive sensor of car passing through the road barrier, etc.
Door Contact terminal of NDC-B052 is intended for connection of these sensors.
Door time
If door sensor is open, corresponding access switches goes into alarm mode.
Alarm is not invoked, if the sensor is opened during Door Time. This interval
starts when access is granted and lasts for the programmed time or terminates
on break and subsequent shortening of the door sensor.
Downloading
NDC-B052 is to be downloaded after setting all parameters – modes of inputs,
outputs, access rights and others on PC. During downloading parameters are
rewritten into the access control panel. If you change control panel parameters
in your computer, they will not take effect until these parameters are downloaded
into the panel.
PIN (Personal Identification Number)
Some readers have built-in keypad. The keypad may be used for PIN (Personal
Identification Number) entry in this case. It can be both self-dependant or used as
Terms
