Connecting The M-Net Interface To Indoor Unit; Connection Example - Mitsubishi Electric MAC-399IF-E Installationshandbuch

5. Connecting the M-NET Interface to indoor unit

Connect the M-NET Interface board to the indoor control board.
Indoor unit
Indoor control board

Connection example

• 5-core connecting cable connected to the Indoor unit should be mounted on the Indoor unit.
If the 5-core connecting cable is not securely mounted, the connector may detach, break, or malfunction.
2 If there is excess thin part of the connecting cable, lay it out
1 Attach a mounting cord clamp 5–6 provided with the parts prepared at the installation site to the thick
part of the connecting cable, and fix it with a screw 9.
3 Close the cover of the indoor control P.C. board. Reinstall the front panel and the lower right corner box.
• Set the interface dip switch (SW500–502) settings before turning on the power.
• If the interface dip switch (SW500–502) settings are not set correctly, the system will not function properly.
Connect the 5-core connecting cable that comes
with the M-NET Interface unit to the connector
CN105 on the indoor control board.
using hooks as shown in the figure.
The thin part of the cable should be secured above the dotted
line indicated in the figure.
Hook
The range in which the thin part
of the connecting cable is
secured.
Dotted line (The position of the
edge face of the indoor control
P.C. board.)
Interface unit 1
7