Toshiba
– 6 –
LN INTERFACE
Installation Manual
EN
The following describes a connection example on the system.
Terminator resistor setting
TCC-LINK terminator resistor
The TCC-LINK terminator resistor is set on the air conditioner side.
(See “6 Setting” for setting.)
LON terminator resistor
The L
ON
terminator resistor is set on the upper L
ON
W
ORKS
®
system side.
Shield grounding of communication cables
TCC-LINK communication cable
Do not connect the shield wire to the terminal block. It should be open and insulated. The TCC-LINK
communication cable must be earthed on the air conditioner.
L
ON
W
ORKS
®
communication cable
Do not connect the shield wire to the terminal block. It should be open and insulated. Connect the shield wire of
the L
ON
W
ORKS
communication cable to the earth on the upper system side.
TCC-LINK
FG
L
N
U1
U2
LON
SW5
SW2
SW1
L
ON
W
ORKS
U2 U1
U4 U3
U2 U1
U2 U1
U2 U1
U4 U3
U2 U1
U4 U3
TCC-LINK main bus
Outdoor
unit
Building management
system
(by other company)
Do not connect the
shield wire to the
terminal block
Set (maximum -1)
of the indoor unit
central control
address with SW1
and SW2 in
hexadecimal
number.
(Other company’s
system)
The TCC-LINK
terminator resistor
is set on the air
conditioner side.
Set SW5 to OFF.
Outdoor
unit
Central
remote
controller
Indoor unit
Indoor
unit
Indoor
unit
Remote
controller
Remote
controller
LN interface
Power supply
120 VAC
Do not connect the shield wire
to the terminal block
The LON terminator resistor is
set on the upper L
ON
W
ORKS
®
system side. Do not set it here.
6-EN
+00DE93429101_01EN.book Page 6 Wednesday, October 26, 2011 6:41 PM