Yamaha DME32 DME32 Owners Manual - Page 242

Cascade Connections 237 Cascade Connections The CASCADE IN and CASCADE OUT ports are used to transmit and receive digital audio signals and control signals in multiple-unit systems. Cascade connections use standard SCSI cables. The DME32's cascade ports use 50-pin half-pitch SCSI connectors, which mate with 50-pin half-pitch pin-type SCSI plugs. For reliable operation, use only SCSI cables of a high quality. CASCADE OUT CASCADE IN The maximum length of each SCSI cable must not exceed 10 meters (32 ft. 9 in.). No special power-up sequence is required when turning on DME32s in a multiple-unit system, although all DME32s must be turned on within 10 seconds. Each DME32 is automatically assigned an ID as it's turned on. The DME32 with nothing connected to its CASCADE IN connector is automatically assigned ID #1, while the DME32 with nothing connected to its CASCADE OUT connector is automatically assigned the last ID. MIDI connections need only be made to DME32 #1. When DME32 #1 receives a Program Change message that has been assigned to Scene 10, for example, Scene 10 is recalled on all DME32s via the cascade connections. In a multiple-unit system, the PC running DME Manager should be connected to DME32 #1. Control signals for the other DME32s are transmitted via the cascade connections. Note: When the number of DME32s in a multiple-unit system is changed (e.g., DME32s are added or removed), all DME32s must be initialized. DME32-Owner's Manual