p.10
Installation and external connection
100RV
The cables should be thick enough to allow the maximum current consumed by
the reader.
2
Bypass diode connection
If you connected an inductor (door locks or alarm device) to the output relay, there should
occur a voltage surge while the inductor is turning on and off. If you do not connect a
reverse diode to the relay, the surge voltage will cause damage to the electric circuit of the
controller. To reduce this surge, it is recommended to connect a reverse diode between the
devices.
Figure 3-1
100RV_bypass_diode_connection
3
I/O connection
3.1
Input Connection
