User Manual

IDentity Flex Hardware Manual – Installation sirit
Version 2.3 Page 45
DISCRETE INPUT/OUTPUT FUNCTIONS
Two discrete outputs are provided per reader port. The discrete outputs provide
control signals for the Lane Indicator Light (Lamp Output) and the Lane Gate
(Gate Command). The driving signals are open collectors with jumper-selectable
pull-up voltages of either +5 VDC or +12 VDC. If no jumpers are installed, the
current-sinking capability of the open collector device is 150 mA. If either jumper
is installed, the driving capability of the pull-up voltages is restricted to low
current control of devices such as solid-state relays. The pull-up outputs are not
intended to directly drive magnetic relays.
Figure 3.16 – Typical Input / Output Circuit and Pull- Up Resistors
DISCRETE INPUT POLARITY
There are two discrete inputs per reader channel. The inputs are the Entry Loop
and Gate Position signals. The reader will respond to either an active high or
active low signal for these inputs based upon how the reader is configured. The
activation levels are configurable via the configuration menus. See Figure 3.17.
Figure 3.17 – Examples of Active-High and Active-Low Polarities
1
J5
5
24-27
28
32 - 37
19
LOOP AND GATE
SIGNAL INPUT
VCC
VCC
+12 VDC
VCC
GATE AND
LAMP OUTPUT
SIGNALS
MAN-IDFLEX-IOPU-FIG12
12 VDC
0 VDC
12 VDC
0 VDC
ACTIVE
"HIGH"
ACTIVE
"LOW"
HOLD-OFF
DURATION
PULSE WIDTH
Figure 4.7 - EXAMPLES OF ACTIVE- HIGH AND ACTIVE-LOW POLARITIES