Table of QAM Module hardware and software revisions. There are 2 QRM modules on each 2x4/2x8 QAM Module. QRMs in QAM Module slots are mapped to table rows as follows: Slot/QRM Table Row 1/1 1 1/2 2 2/1 3 2/2 4 3/1 5 3/2 6 4x4 QAM Modules do not use QRM boards. There is only one board. These will be found in the odd indexed rows of this table. The even indexed rows of the table are not used for 4x4 QAM Modules. 4x4 QAM Modules in QAM Module slots are mapped to table rows as follows: Slot Table Row 1 1 2 3 3 5