Toshiba MMY-MUP0801HT8P-E Installation Manual page 27

Communication line
TU2C-Link models (U series) can be combined with TCC-Link models (other than U series).
For details of communication type, refer to the following table.
Communication type and model names
TU2C-Link
Communication type
(U series and future models)
MMY-MUP
Outdoor unit
This letter indicates U series model.
MM -UP
Indoor unit
This letter indicates U series model.
RBC-A U
Wired remote
controller
This letter indicates U series model.
Wireless remote RBC-AXU
controller kit &
receiver unit This letter indicates U series model.
U series outdoor unit: SMMS-u (MMY-MUP
Other than U series outdoor unit: SMMS-i, SMMS-e etc. (MMY-MAP
51-EN
TCC-Link
(Other than U series)
Other than U series
MMY-MAP
MCY-MAP
Other than U series
MM -AP
Other than U series
Other than U series
)
)
Specifications for communication wiring
Design of communication wiring
Summary of communication wiring
Header outdoor
Central control
Uv Uv Uh Uh SHIELD Uc Uc
device
Uh
U3 U4
Control wiring between indoor and outdoor units (Shield wire)
Control wiring between indoor units (Shield wire)
A B
U1 U2
Uv
Indoor unit
A B
Remote controller
• Communication wiring and central control wiring use 2-core non-polarity wires.
Use 2-core shield wires to prevent noise trouble.
In this case, ends of the communication wire must be grounded.
• Use 2-core non-polarity wire for remote control. (A, B terminals)
Use 2-core non-polarity wire for wiring of group control. (A, B terminals)
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Follower outdoor
SHIELD Uv Uv Uh Uh SHIELD Uc Uc SHIELD
Control wiring between outdoor units (Shield wire)
A B A B
U1 U2 U1 U2
Uv Uv
Indoor unit Indoor unit
A B A B
Remote controller Remote controller
(Group control)
U v U v A B
Indoor unit
EN
52-EN