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PRO22R1-Reader Interface Installation
1-1
Reader Interface (PRO22R1)
The PRO22R1 provides interfacing to a TTL/Wiegand type reader
and door hardware as needed, for a single door. The Reader
Interface can accept data from a reader with clock/data or
Wiegand interface and provides a tri-stated LED control and
buzzer control. Two form-C relay outputs may be used for strike
control or alarm signaling. Two supervised inputs are provided for
monitoring the door contact and exit push button and one input
(J3) for enclosure tamper. Communication to the interface is
accomplished via an RS-485 interface.
Power, Reader and Door Hardware Wiring
All interconnection to the Interface are via quick-disconnect termi-
nal blocks. The Interface requires 12 VDC ±15% for power. The
12 VDC is available for powering a reader.
Reader with TTL (clock/data or wd1/wd0) interface is supported
by the Interface.
Two supervised inputs are typically used for door contact and exit
push button monitoring. End of line resistors are required for line
supervision.
Two form-C relay contacts are provided for controlling door strike
or other devices. The contact ratings are different on these out-
puts. Load switching can cause contact abnormal wear and pre-
mature contact failure. Switching of inductive loads (strike) also
causes EMI (electromagnetic interference) which may interfere
with normal operation of other equipment. To minimize contact
premature failure and to increase system reliability, surge protec-
tors should be used (Part #S-4).