Alesis MMT-8 Specifications download pdf (Page 15)

SECTION 3

INTERFACING DATADISK

DATADISK CONNECTED TO A SINGLE MIDI DEVICE

Set-up of the DATADISK is simplicity itself. Simply connect the MIDI

Out of the synthesizer, sequencer, effects processor, or other MIDI

device that is to send system exclusive data, to the MIDI In of

DATADISK. To off-load data, connect the MIDI Out of DATADISK to

the MIDI Input of the MIDI device that will be receiving the data.

HAND-SHAKING

Although most MIDI devices that are capable of dumping data to

DATADISK will only need one MIDI cable at a time when using

DATADISK (MIDI device Out to DATADISK In for a dump; DATADISK

Out to MIDI device In for an up-load), there is some earlier MIDI

equipment that requires both cables to be connected for operation.

This is because the MIDI device must Handshake with DATADISK.

When such a MIDI device is in the receive or up-load mode,

DATADISK may be able to send data faster than the MIDI device is

able to process it. In order to give itself a chance to catch up with

the transmission, the MIDI device sends out a command to stop the

transmission (the "Handshake"), then after it has caught up, it

sends out another command to begin transmission again.

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Alesis MMT-8 Specifications Page 15