Cross Point b.v. CP301MAXRXA User Manual
Technical Manual AM Systems
Connections
v4.4
Page 34 of 72
6.12
The visitor counter
The AM models can be equipped with a visitor counter. This counter allows counting of
visitors as well as determining the movement direction of a person who generated an
alarm.
visitors as well as determining the movement direction of a person who generated an
alarm.
Both TRX and RX antennas can therefore be equipped with a visitor counter PCB. The
TRX antenna holds the RX visitor counter PCB (IR-RX) and the RX antenna holds the TX
visitor counter PCB (IR-TX).
TRX antenna holds the RX visitor counter PCB (IR-RX) and the RX antenna holds the TX
visitor counter PCB (IR-TX).
Figure 18 shows the visitor counter principle.
Figure 18: Top view of the visitor counter principle
The IR LED on side B of the RX antenna transmits an infra-red signal, which is received
by both IR receivers on side A of the TRX. When the infra-red signal is interrupted by a
person walking in (incoming), first IR-RX1 will receive no signal and then IR-RX2 will
receive no signal. In this way the visitor counter registers the movement direction. The
same principle is used for outgoing persons.
by both IR receivers on side A of the TRX. When the infra-red signal is interrupted by a
person walking in (incoming), first IR-RX1 will receive no signal and then IR-RX2 will
receive no signal. In this way the visitor counter registers the movement direction. The
same principle is used for outgoing persons.
As shown in the above figure, each visitor counter PCB has an A and B side. The
transmitter IR-
transmitter IR-
LED’s and the IR receivers can be switched on or off per side. This is
necessary for each first and last antenna in a row. For example, if the system in the
above figure consists just of two antennas, then the visitor counter side B of the
transceiver antenna and side A of the receiver antenna must be switched off. The Device
Explorer software will automatically activate the visitor counters dependent of the antenna
lay-out.
above figure consists just of two antennas, then the visitor counter side B of the
transceiver antenna and side A of the receiver antenna must be switched off. The Device
Explorer software will automatically activate the visitor counters dependent of the antenna
lay-out.
It is possible to increase the intensity of the IR-
LED’s. This can be useful in bright and
sunny environments, to ensure proper functioning of the visitor counter.
For the visitor counter to operate properly the minimum distance between the transceiver
and receiver is 0.5m. The maximum distance is 3m (per aisle).
and receiver is 0.5m. The maximum distance is 3m (per aisle).
visitor counter PCB (IR-TX)
visitor counter PCB (IR-RX)
IR LED’s
IR Receivers
Side B
Side B
Side A
Side A
In
c
o
m
ing
IR-RX1
IR-RX2
Ou
tg
o
ing