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2.5.5 Card Reader/Keypad
Any input device with a Wiegand or Clock & Data bit stream can be used with the WRI-IN. A
transaction must be a single bit stream of between 4 and 255 bits.
The WRI-IN provides a Card Reader interface. Wiring of the Card Reader is optional based on the
WRI-IN application.
Take the power requirements of the Card Reader into consideration when sizing the power supply for
the WRI-IN and its peripherals (Section 2.5.1).
Card Reader connections are shown in Table 2-5.
Connect the Card Reader cable shield to the WRI-IN GND terminal on the Card Reader connector.
Do not connect the cable shield at the Card Reader (Figure 2-5).
CARD
READER
245 W. Roosevelt Road, Bldg 7, Suite 48, West Chicago, IL 60185 / (800) 313-2962 / (630) 293-4257 fax
P/N: M053-014-C
CLK/D1
Card Reader inputs, each input line has a 3.3k pull up resistor
to 5V, and a 12V transient suppressor to GND.
DATA/D0
Reader power supply output. The WRI-IN PC board routes its
12VDC+
own power supply input to these terminals, so the readers see
the same supply as the WRI-IN. If other than 12 VDC is
required for the input device, then a separate input device
power supply must be used. Make certain that a common
GND
ground connection is established between the input device's
power supply and the WRI-IN.
Green LED signal line. This signal goes to ground through
GRN_LED
100ohm when activated. When deactivated, it is pulled up to
+5V through 1.1kohm.
Red LED signal line. Same functionality as GRN line, except
RED_LED
RED.
Table 2-5 – Card Reader Connections
Ingersoll Rand Security Technologies
www.ir-swa.com
Wireless Access
Page 14 of 18
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