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Reader LED Flash Rates
Most access card readers will have an LED output to
provide visual feedback from the reader to the user when
a valid access card has been accepted or denied. The
PC4820 is capable of displaying many different statuses
at once. The different flash rates are described below.
The colour of the LED may be different depending on the
manufacturer and some options that may be changed
within the PC4020 programming.
LED State Description of Function
Steady Red Door is locked
Steady Green Door is unlocked -
Access granted
Slow flash (state change The partition the Arm/
every half second) Disarm mask is
assigned to is armed
Medium Flash (state Waiting for a Privilege
change twice every second) card to be swiped
Fast flash (State Access denied/Time
change three times expired waiting for
every second) a privilege card.
Buzzer Operation
Most access card readers will have a buzzer output to
provide audible feedback from the reader or Request to
Exit device. The Buzz output may be connected to
operate local warning devices for the following
conditions.
• The access controlled door has been forced open
(door opened without a Request to Exit or an
access card used). When the Door Forced Open
event occurs, the buzzer will activate and remain
active until the door has been closed.
• The access controlled door has been left open too
long. If a door is left open past the Door Open Time
the buzzer will activate and remain active until the
door has been closed. Before the door open too
long event will occur the PC4820 will provide an
audible warning. This will consist of a single pulse
from the Buzz output once every second for the last
half of the programmed Door Open Time.
How to Setup and Use an Access Card
In order for an access card to function on the PC4820,
the card must first be programmed into the PC4020.
Once the user has been selected and the card number
programmed, select an Access Level for that user. The
Access Level will allow the user to enter through doors
that have the same access level enabled on them.
Access Levels are enabled on doors by the installer
assigning the level to a schedule. When the schedule
becomes active the access level will be valid on that
door. The Access Level can be programmed for each
door to allow access at only specific times of the day. If
the user is to have arming/disarming abilities the user
must be assigned to a partition, and the installer must
assign the door’s arm/disarm mask to the same
partition(s).
To gain access to a locked access control door first swipe the
card in the method indicated by the access card reader
installation manual. When the LED on the reader changes
state, the door has been unlocked and can be opened.
Arming and Disarming Using Access
Cards
The PC4820 can be used to arm and disarm any active
partition on the system.
To arm the partition, first ensure that the partition area to be
armed is secure. Close all protected doors and stop
movement in areas covered by motion detectors. Swipe the
user card and activate the ARM input. Exit delay will begin.
NOTE: To arm a partition the user must be assigned to
the partition and the Arm attribute must be enabled
To disarm the partition, first swipe the user card and open
the door input. The partition will be disarmed if the Disarm
Request schedule is active. If the time is outside of the
Disarm Request schedule window the door will unlock, but
the partition will not be disarmed when the door input is
opened. The user must enter their access code at the
keypad.
NOTES: To disarm a partition or enter a partition which
is armed, the user must be assigned to the partition and
the Disarm attribute must be enabled.
Autoarm Postponement
To postpone an autoarm, the user must swipe their access
card (during the autoarm pre-alert) and activate the Post
input. The Autoarm will restart at the end of the Postpone
Arm time unless the partition has been manually rearmed.
The autoarm may be postponed as many times as desired.
Note: To postpone an Autoarm, the user must be
assigned to the partition and the Disarm attribute must
be enabled.
Request To Exit (REX)
When enabled, this PC4820 input will be able to unlock the
door when the REX input is tripped. The door will remain
unlocked for the duration of the Door Unlock Time. This will
be used on the inside of the secured area to provide a
method of unlocking the door without the need for an
access card reader on the inside of the door. This will also
allow the door to be opened without the door being “Forced
open”. Request To Exit devices can be of many different
types. Be sure to read the installation sheets provided with
each unit for proper installation of REX devices.
ACCESS CONTROL
FUNCTIONS
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