Mackie SR408 / SR568 Owner's Manual - Page 52

Using the DATA Port Use the following serial communications The DATA port on the SR40•8/56•8 mirrors the MIDI ports, transferring MIDI information between an external computer's RS-232 serial port and ULTRA MUTE. The only difference between using the DATA and MIDI ports is the parameters when using the DATA port: Baud rate 19.2k1 Parity None Data bits 8 Stop bits 1 rate of transmission of the data and the general physical hardware (9-pin Sub D vs. 5-pin DIN, respectively). The actual data transferred is the same. The DATA port provides two-way communication of data between devices. Pin 2 is RXD (receiving line), pin 3 is TXD (transmitting line) and pin 5 is ground (shield). 1 The RS-232 serial port is configured to operate at 19.2k baud at the factory. An internal jumper provides the option of changing the baud rate to 9600 baud or 38.4k baud. Please refer to the SR40•8/SR56•8 Service Manual, or contact Mackie Technical Support at 1-800258-6883 (8am to 5pm PST), for details. If your computer has an RS-232 port, the connecting cable should be wired as follows: Note: The MIDI port operates at 31.25k baud, as defined by the MIDI Manufacturers DB9 FEMALE Association's (MMA) MIDI Specification. DB9 MALE TO COMPUTER (RS-232 PORT) 1 2 TXD 3 RXD RXD 1 TXD 2 3 4 5 GND GND 4 5 6 6 7 7 8 STANDARD DB9 8 9 COMPUTER CABLE 9 TO CONSOLE (DATA PORT) ® MIDI IMPLEMENTATION SUMMARY • When you first power up the console, a number briefly appears in ULTRA MUTE's numeric display. This is the version number of the firmware stored in the ROM memory. Version 1.2 was installed in the first shipments of the SR40•8 console. See next column for notes regarding version 1.2 of the firmware. • Use MIDI Note Messages to turn on and off individual mute nodes or to recall individual mute groups within a set (refer to Appendix B). ULTRA MUTE must be in group mode. • Use Program Change Messages to recall individual snapshots. ULTRA MUTE must be in snapshot mode. • Use Sysex Messages to backup ULTRA MUTE's memory (refer to MIDI Sysex chart on page 11). Sysex Messages are recognized in any mode, including system bypass. Notes regarding version 1.2 of the firmware: 1. MIDI Sysex Message number "00 00" (requests all snapshots, all at once) may encounter errors due to buffer problems in some sequencing software. If you are unable to successfully execute this request, use "00 01" (requests all snapshots, one at a time). 2. MIDI Sysex Message numbers "02 00" (requests all groups, all at once) and "02 01" (requests all groups, one at a time) do not work in this version. Sets 1-8 are transferred, but not Set 9. A suggested workaround is to create a string using message request number "03" to request groups from each of the nine sets. For example: 52