5 Position of Connectors and Functions of VPNRouter iR 2110
Clamp
G
N
P
Function CAN_GND CAN_L CAN_H
Table 10: CAN bus Connector
Figure 20: CAN
Bus
5. Position of Connectors and Functions of VPNRouter iR 2110
5.1. Power
The VPNRouter device is powered by a single power supply in a wide range from 9 V to 54 V DC.
The socket for a terminal block clamp is on the rear side. A suitable power supply adapter is
available as an add-on component, and part of the Starter Kit package. Connect the cable to the
power jack, and plug the adapter into the socket. The Power LED (red) on VPNRouter will light.
You can connect a power supply of your choice, providing the technical requirements are met.
Warning:
disconnect the VPNRouter from power supply before performing installation or wiring.
The wire size must follow the maximum current specications. The maximum possible current
in the power wires as well as in the common wires must be taken under consideration. If the
current rises above the maximum ratings, the wiring can overheat, causing serious damage to your
equipment. When powered, the VPNRouter internal components generate heat, and consequently
the outer case may feel warm to the touch.
5.1.1. Connection and Polarity
Power is connected via three clamps on a terminal block, located on the rear side of VPNRouter.
Clamp
3
2
1
Function PE V- V+
Table 11: Power Connector
V+ and V- are clamps for DC volt-
age supply. PE is the clamp to con-
nect the case and shields of con-
nection cables to Protective Earth.
PE is internally connected to logic
ground, which is on the level of V-
supply line.
Figure 21: Power Connector
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.
Juli 2016
VPNRouter Software Manual
22
