Rolm 85690 8-Channel OPX Line Interface Circuit Board Card 501410 Assy

Rolm 85540A 8-Channel Line Interface Circuit Board Card

Rolm 85360B Floppy Disk Interface Circuit Board Card 501834 Assy

Rolm 87600 2-Channel Serial Device Interface Circuit Board Card 500315-1G Assy

Rolm 96D8450 90685 8 Channel MWL Circuit Card

Rolm 98D0124 90520B Circuit Board Card

Rolm 97D1140 90650A TIE/Trunk Interface Circuit Card **UNTESTED**