This article applies to the CoolMaster EDGEMitsubishi Electric – Outdoor line connectionMaximum indoor per line: 50Supported device line number: L2No line polarity requiredCable type – Follow Mitsubishi Electric's installation instructionsSet line type in the EDGE device to: MEEach Outdoor and Indoor must be set with unique addressFollow ME instruction on how to address the unitsTo provide 30VDC voltage to the TB7 line move the jumper from CN41 to CN40 in only one of the outdoor units