MELSEC-Q Series Interface Modules Connector Orientation Change Notice

This technical bulletin announces a change in the orientation (rotation) of the network connectors on specific MELSEC-Q series interface modules, including the QJ71E71-100, QJ71FL71-T, QJ71FL71-T-F01, and QJ71MT91. It provides serial number cutoffs to identify modules with the old versus new connector orientation and notes that the built-in connector LED will no longer illuminate.