Toshiba LonWorks TCB-IFLN642TLUL Installation Manual page 7

LN INTERFACE
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 terminator resistor is set on the upper L
ON
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.
communication cable
L W ®
ON ORKS
Do not connect the shield wire to the terminal block. It should be open and insulated. Connect the shield wire of
the L W communication cable to the earth on the upper system side.
ON ORKS
Building management
system
(by other company)
(Other company's
system)
Do not connect the shield wire
to the terminal block
The LON terminator resistor is
set on the upper L W
®
ON ORKS
system side. Do not set it here.
Power supply
120 VAC
W ®
ON ORKS
The TCC-LINK
Do not connect the
terminator resistor
shield wire to the
is set on the air
terminal block
conditioner side.
Set SW5 to OFF.
SW5
LN interface
– 6 –
system side.
Set (maximum -1)
of the indoor unit
central control
address with SW1
and SW2 in
hexadecimal
number.
TCC-LINK main bus
Outdoor
U4 U3
unit
SW1 SW2
U2 U1
U2 U1
Indoor
unit
Remote
controller
Installation Manual
Outdoor
U4 U3 U4 U3
unit
Central
U2 U1
remote
controller
U2 U1 U2 U1
Indoor
Indoor unit
unit
Remote
controller
EN
6-EN