Gree ME30-24/E6

18
7.2.1
Material Selection of Communication Cable
Communicati-
on system
Material of
cable
Comm-
unicati-
on cable
L(m)
Cable
diameter
(mm
2
)
Material
standard
Remark
Communicati-
on between
Modbus
Gateway(-
Mini) and
BMS
Light/
Ordinary
PVC
sheathed
twisted pair
copper wire
(RVV)
L≤800 ≥2×0.75
IE-
C60227-
5:2007
When
communic-
ation
distance
exceeds
800m,
photoelect-
ric isolation
repeater
shall be
added
Communicati-
on between
Modbus
Gateway(-
Mini) and air
conditioner
Light/
Ordinary
PVC
sheathed
twisted pair
copper wire
(RVV)
L≤500 ≥2×0.75
IE-
C60227-
5:2007
The length
of
communic-
ation cable
shall not
exceed
500m
7.2.2
Communication Connection Way
Notice! All communication cables of Modbus Gateway(Mini) must be
connected in series instead of in star mode.
Modbus Gateway(Mini)