Precautions When Designing Systems Of M-Net - Mitsubishi Electric Lossnay LGH-100RX3-CAN Technical Manual

6. Precautions When Designing Sys-
tems of M-NET
6.1 Power Supply of the M-NET Transmission Cable
On an M-NET system, the remote controller or central controller operate on power received from the transmission cable.
Accordingly, there is need to provide power to the transmission cable.
There are two systems for supplying power. The central system is supplied by a power supply unit. The indoor unit system is
supplied by a outdoor unit. The Lossnay and the Lossnay remote controller can be connected to either system.
Lossnay
remote controller
(PZ-52SF-E)
6.2 Restrictions When the Lossnay Units are Con-
nected to the Central Controller M-NET Trans-
mission Cable.
Due to the limited capacity of the power supply unit, the number of Lossnay remote controllers is restricted when the Lossnay
M-NET remote controllers and Lossnay units are connected to the central controller transmission cable.
This does not apply to Lossnay units that do not receive power from the central controller transmission cable.
Number of centralised controllers
Number of Lossnay Power supply unit
M-NET remote
PAC-SC34KUA
controllers that can
Transmission Booster
be connected.
PAC-SF46EPA
Centralised controller
• In the case that a greater number of Lossnay remote controllers than that shown above is connected due to the use of a
power supply unit (PAC-SC34KUA), a transmission booster (PAC-SF46EPA) becomes necessary.
• Transmission Booster (PAC-SF46EPA) can be used without a power supply unit (PAC-SC34KUA) if TB2 (OUTDOOR UNIT
SIDE) is opened, and the M-NET transmission cable is connected to TB3 (ADDITIONAL INDOOR UNIT SIDE).
134
The central system
Power supply unit
Centralised controller
Lossnay
Non
Max. 30 units
Max. 50 units
Transmission cable
Power supply unit
(PAC-SC34KUA)
Lossnay M-NET remote controller
(PZ-52SF-E)
Outdoor unit
TB7 TB3
Central controller
transmission cable
MA remote controller
1 unit
Max. 26 units
Max. 46 units
Lossnay Lossnay
Lossnay M-NET remote controller
(PZ-52SF-E)
The indoor unit system
Indoor unit transmission cable
Indoor unit Lossnay
2 units 3 units
Max. 22 units Max. 18 units
Max. 42 units Max. 38 units
Lossnay Lossnay
4 units
Max. 14 units
Max. 34 units