Device description
16
k4evo707en-2012-07
2.5 Connections
2.5.1
Overview of pin assignment
Pin Meaning
Pin Meaning
1
Power supply
– DC/AC
9
Tamper switch
2
+ DC/AC
10
RS-485 interface
A
3
Relay output
NC (normally closed)
11
B
4
COM
12
C
5
NO (normally open)
6
Inputs
GND (common ground)
7
Door handle contact or door
opener key REX (IN1)
8
Frame contact FC (IN2)
IMPORTANT
Given the different use (firmware options), individual connections can be used for different purposes
or not at all.
Disconnect the Compact Reader from the power supply before carrying out any wiring work directly
on it
Use cable ferrules for the connections
For information on the maximum cable lengths, see Chapter 3.2.1 / Page 23
24V
12V
1
4
7
8
6
5
3
2
A B C
Air/Metal
ON
6
1
1
12
RS-485