BEWATOR COTAG 4101-2, Installation Handbook, Page: 58 / 158

4101-2 Controller Installation Handbook
6-4
LED outputs available from CONN1 of 4988
PINpad Data Converter
CONN1 of the 4988 PINpad Data Converter has four LED outputs,
each of which is an open collector driver which can sink up to 20mA.
You can use V+ to provide power for the LEDs. The function of the
four LED outputs is as follows:
E (ENABLE) This output is activated when a card or tag has been
read or swiped and the Controller is wating for PIN data to be entered
on the PINpad.
A / E (ACK/ERROR) This output is activated for 100ms every time a
key is pressed on the PINpad. If the PIN entered is incorrect, this
output is activated for 5s. If no PIN data is entered, or not enough
PIN data, this output is activated for 1s.
O (OPEN) This output is activated while the door relay is energised.
C (CLOSED) This output is the inverse of O .
Using the PINpad
The PINpad is a keypad which is installed next to a door and is used
to provide security over and above that of the Card validation alone.
The PINpad can be used for the following:
1. Keying in your PIN (personal identification number) to gain
access to a door after your Card has been read.
2. Keying in a “duress” PIN to gain access to a door in the same
way as above while also generating an alarm.
3. Keying in a special PIN to activate a “trigger event” from the
Controller. (A trigger event can be configured to provide any
I/O function.)