Akai dps24 用户手册

MMC SETUP 

This page allows separate MMC device IDs to be assigned for MMC transmit and MMC Receive. 
Pressing MMC shows this page: 

SEND ID sets the MMC ID for transmission - this should match the ID of the machine you 
want to control. ID 127 is "Broadcast" to all connected MMC machines. 

RECEIVE ID sets the MMC ID for control by external machines. The setting here should 
match the MMC ID of the controlling device. 

It is possible to nominate whether the DPS24 is an MMC master or slave using the MASTER/ 
SLAVE parameter.