Chapter 5 - Installation
5.4. Electrical connection
Connect the modems to the power supply according to
the pin configuration as shown below. You may use the
24V supply of the control cabinet.
Terminal
Function
1
+9VDC to +33VDC
2
0V
– ground
3
PE control cabinet ground
4
Relay contact output
5
Relay contact output
6
24V DC gate input
PE has to be connected with control cabinet ground! If
the PE is not connected the noise filter cannot filter
interferences on 24 V DC power supply line. These may
cause malfunctions, errors or the destruction of the
device.
CAUTION
The nominal operating voltage of 24 V DC falls into the
category SELV (safety extra low voltage) and is thereby
no subject to the EC low voltage directive. Usage of
other power supplies is not allowed. For connection to
the 230 V AC mains supply an external wall power
supply with 12 V DC output voltage is used
