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Wireless Access
Figure 2-8 – Portal Output Suppression Diagram
2.6.6 Card Readers
Any input device with a Wiegand or Clock & Data bit stream can be used with the WRI-OTD. A
transaction must be a single bit stream of between 4 and 255 bits.
The WRI-OTD provides two Card Reader interfaces. These interfaces are in parallel (but buffered for
CMOS compatibility). The second reader interface is intended to be used with a Wiegand output
keypad for card and PIN operation. Wiring either of the Card Readers is optional based on the WRI-
OTD application.
Take the power requirements of the Card Readers into consideration when sizing the power supply for
the WRI-OTD and its peripherals (Section 2.6.1).
Connections for Card Reader 1 are shown in Table 2-6. Card Reader 2 connections are in Table 2-7.
Note that the LED control lines are actually the same signal but brought out to each connector for ease
of wiring. This means that that LED inputs on both readers will be driven identically.
Connect the shield of the Card Reader 1 cable to the WRI-OTD J4-4 terminal (GND). Connect the
shield of the Card Reader 2 cable to the WRI-OTD J5-4 terminal (GND). Do not connect the cable
shield at the Card Readers/Keypad (Figure 2-7).
Ingersoll Rand Security Technologies
245 W. Roosevelt Road, Bldg 7, Suite 48, West Chicago, IL 60185 / (800) 313-2962 / (630) 293-4257 fax
P/N: M053-003-C
www.ir-swa.com
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