Toshiba MCY-MUG0401HSW-E Service Manual page 99

*1 : Only the indoor unit that has the longest wiring length from the outdoor unit.
The indoor address of the indoor unit with the termination resistor turned on is confirm the items in "8-7-12. Monitor Function of Remote
Controller Switch".
 Procedure to set up the communication method manually
The communication method and the termination resistor settings can be changed by setting the outdoor DN code
(O.DN) and the Indoor Unit Function Code (I.DN).
(See also 7-1. Method to set Outdoor Unit Function Code No. (O.DN) for operation method.)
<Procedure to set the TU2C-Link communication setting>
1) Set the Outdoor Unit Function Code (O.DN) [082] of all outdoor units to "0003".
2) Set the Indoor Unit Function Code (I.DN) [FC] of all indoor units to "0003".
3) Set the Indoor Unit Function Code (I.DN) [1FC] of the farthest indoor unit to "0001" (set the indoor termination
resistor to ON).
* If which indoor unit is the unit in the farthest room is unknown, perform the communication method
automatic setup.
O.DN[82] Communication setting
Line (system) address (DIP SW)
Interface P.C. board on the outdoor unit
4
SW04 SW05
SW01 SW02
Indoor
Outdoor
Unit 1
controller controller controller controller
3 3
0
7 7
1
0
SW06
3, 5, 6
8, 9
2, 10
SW03
(Farthest)
Indoor
Indoor
Indoor
unit 4
Unit 2
unit 3
3 3 3
0 1 0
7 7 7
2 3 4
1
0 0
(Header) (Follower)
98
Indoor
unit 5
I.DN[FC] Communication setting
3
I.DN[1FC] Indoor termination
0
resistor setup
I.DN[12] Line (system) address
7
I.DN[13] Indoor unit address
5
I.DN[14] Group address
2