The manual number is given
A1SJ71AT23BQ A1SJ71AT23BQ PDF on the bottom right of the cover
Mitsubishi A1SJ71AT23BQ Manual A1SJ71AT23BQ Data Link Module Manual PDF.
Link A1SJ71AT23BQ PDF Module Mitsubishi A1SJ71AT23BQ Manual PDF.
A1SJ71AP23Q Communication A1SJ71AT23BQ Manual Mitsubishi A1SJ71AT23BQ PDF A1SJ71AP23Q Transition Manual.
Mitsubishi A1SJ71QE71N-B2 PLC A1SJ71QE71N-B2 Transition Guide.
MMitsubishi A1SJ71AT23BQ Manual A1SJ71AT23BQ User's Manual(Hardware) A1SJ71LR21 catalog PLC.
A1SJ71C24-R4 A1SJ71AT23BQ PDF Transition Manual Mitsubishi Network Module.