10
Electrical connection accessories
CTS602 Connection Box
You can connect the following external connections via the Connection Box that has 0.5 m wire and an RJ45 plug:
• User selection 1
• User selection 2
• Modbus
• Fire thermostat / external fire automation system
Functional cable
Many of the external connections are made via an RJ45 port that is installed on the ventilation unit. See the connections overview to
locate the RJ45 port. From factory, a shunt plug for fire thermostat connection has been plugged into the RJ45 port. This must be re
-
moved before the LAN cable is plugged in.
The LAN cable enables the following functions:
• User selection 1
• User selection 2
• Modbus
• Fire thermostat / external fire automation system
Connections in relation to the function cable that has an RJ45 connector in one end and loose wires in the other:
The length of the LAN cable is 10 m.
User selection output
Fire thermostat/external fire automation system
Modbus B1 (-)
Modbus A1 (+)
User selection 2
User selection 1
GND
GND
ATTENTION
If you only want to connect 1 function, we will recommend that you purchase a LAN cable, type A, of the length required.
Plug either end of the cable into the RJ45 port on the unit. Cut off the connector at the other end of the cable and connect
up the wires that are required. The colours for different types of connections to the connection box are listed above.
1. Green/white
2. Green
3. Orange/white
4. Blue
5. Blue/white
6. Orange
7. Brown/white
8. Brown
GND
User selection 1
User selection 2
Modbus A1 (+)
Modbus B1 (-)
Not used
Fire thermostat / external fire automation system
User selection output (Cookerhood function)
ATTENTION
If you adapt an RJ45 cable yourself, be aware that wire 8 (Brown) can become live with 12V and must not be short
circuited.
In Nilan’s LAN cable the wires that are not used are not connected up to the RJ45 connector. With Nilan’s LAN cable there
is therefore no risk of short circuits.
500 mm
8
7
6
5
4
3
2
1
1
RJ45
Brown
Brown/white
Orange
Blue/white
Blue
Orange/white
Green
Green/white
