Samsung MXJ-YA1509 Series Installation Manual page 100

4. 4.
Indoor Units installation Indoor Units installation
(3) With the drain pump (3) With the drain pump
11) Power and communicat 11) Power and
  Use Y-type terminal for the Communication Connection (Outdoor to Indoor unit / Use Y-type terminal for the Communication Connection (Outdoor to Indoor unit /
Indoor to Indoor unit) & for Wired remote connection. Indoor to Indoor unit) & for
  Use Ring Type terminal for the power c Use Ring Type terminal for the power connection to the indoor unit.
communication cable connection ion cable connection
Indoor unit Indoor unit
Wired remote connection.
99 99
Indoor unit Indoor unit Indoor unit Indoor unit
onnection to the indoor unit.