Toshiba BMS-SM1280HTLE Service Manual page 17

<Specifications for Wiring>
Use the following materials to connect signal lines and power lines (locally procured)
No
1
2
3
(220 - 240VAC)
4 For digital Input / Output connection
For power supply
5
(Between the power unit and central controller)
Line
For TCC-LINK
For RS-485
For power
Type / Wire size / Length
2-core shield wire
1.25mm², 1000m max. (total length including
2.00mm², 2000m max. air conditioner area)
2-core shield wire
1.25mm², 500m max. (total length)
H05RN-F or 245IEC57
0.75mm², 50m max.
0.3mm², 100m max.
0.75mm², 20m max.
17
2-core wire
4-core wire