Mitsubishi Electric Q26UD(E)HCPU User Manual page 88

(2) Connection of extension cable
When connecting an extension base unit to the main base unit with an extension cable, plug the OUT side connector of the
main base unit and the IN side connector of the extension base unit with an extension cable. The system will not operate
properly if the extension cable is connected in the form of IN to IN, OUT to OUT or IN to OUT.
When connecting two or more extension base units, plug the OUT side connector of the first extension base unit and the IN
side connector of the second extension base unit with an extension cable.
1.
To connect an extension cable to the main base unit, remove the portion under the OUT characters
on the base cover with a tool such as a flat blade screwdriver (5.5 × 75, 6 × 100).
This also applies to a case where an extension cable is connected to the OUT side connector of
the extension base unit. When connecting an extension cable to the Q00JCPU and Q00UJCPU,
remove the base cover manually. To remove the base cover, insert the tip of a screwdriver into a
clearance below the base cover and pry it up. Be careful not to damage the connector when
inserting the screw driver since a connector is located inside the base cover.
2.
To connect the extension cable to the next extension base unit, remove the seal put under the IN
characters on the base cover.
86
Main base unit
Cut at 2 places
of thin wall
Base cover
Flat blade screwdriver
Extension base unit
Seal
Extension base unit
OUT side of
base cover
Flat blade screwdriver
IN side of
base cover
Cut at 2 places
of thin wall