• Cable type: Flat 4–conductor CEC Phone cable, or
equivalent.
The gateway is powered by the air handling unit.
Screw/Terminal
Function
1 (A)
RS485 A
2 (G)
GND (shielding)
3 (B)
RS485 B
4 (P)
Power supply (5 V DC / 24 V AC)
RS485 Gateway
User Manual
7
Systemair AB