User's Manual

Connecting External Devices
Reader RD21 Installation and Connections 2-7
Caution Do not exceed the maximum ratings for the relay contacts and Motion Sensor input as stated in
Appendix A, Specifications.
Figure 2-5: External Devices Connections
RESET
CNO COM CNC
A B Z Y
A B Z Y
+ - OS I/0
+ 8V DTA PWR
J1
Load
Open
J2
Load
Open
DATA
POWER
Controller CTL21
J2
S95
S21
J3
J1
Load
Open
Load
Open
NO NC
COM
TB14
RELAY
+12.0Vdc
GND
MS
NC
C
Motion Senor
+12.0Vdc
GND
TB12
Optional I/O