yes so the MTS-1000 connects to the ES-50 which connects to the MS-16 or ATR-60. THe MTS-1000 uses the accessory 2 which is serial (for machines like TSR8, MSR16, MSR24, 688, 238, etc), the MS-16 has a parallel interface (the 38 pin connector or any other machine with Accessory 1 port) so the...