4 Position of Connectors and Functions of VPNRouter iR 5221 and VPNRouter iR 3220
Attention:
Never connect the Terminal block for power supply in reversed direction, i.e. turned
by 180°. This would connect the power between V- (logic ground) and case/protective ground.
High current is the result, causing damage inside the system.
4.1.2. Grounding
Grounding and wire routing help limit the eects of noise due to electromagnetic interference (EMI).
Run the ground connection from the ground screw to the grounding surface prior to connecting
devices.
In noisy environments the case of VPNRouter shall be directly connected to
Protective Earth. This is the purpose of the dedicated PE Screw on the case
top/rear side.
Figure 7: PE Screw
4.2. WLAN Switch
The WLAN switch on the top side is used to disable the WLAN function.
Provided the VPNRouter is equipped with a WLAN module. Otherwise
software may just read this switch for other purposes.
Figure 8: WLAN
Switch
4.3. Digital I/O
The functions of Digital Input and Output are located on the 13 clamp terminal block on the top
side of VPNRouter. Also available on this terminal block is the function of I²C and an auxiliary
power output.
1
2
3
4
5
6
+5V IN 0 IN 1 IN 2 IN 3 GND
(a) Input connects
7
8
9
10
OUT 0 OUT 1 OUT 2 OUT 3
(b) Output connects
11
12
13
GND SDA SCL
(c) I²C connects
Table 5: Digital Input/Output: Connector
Figure 9: Digital
Input / Output
Connector
Juli 2016
VPNRouter Software Manual
17
