
REV. 02 - MARCH 2021 - BLÜCHER
®
CONNECTED ROOF
9
Electrical wiring
In the bottom of the Gateway you can make three different electric wire connections - Relay,
Internal power and Modbus. Below you will find the different ways to set it up.
Relay
Relay can be wired as NO or NC.
Internal power
As an alternative to the power
connector on the right side of the
Gateway, a 5V DC power supply
can be wired directly to the power
terminals.
Modbus
If connection to a Modbus RTU BMS
system is required, a suitable RS485,
cable must be used and connected to A,
B, GND. If connection to a Modbus RTU
BMS system is required, a suitable RS485
cable must be used and connected to A,
B, GND.