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AMX AXB-MIDI - page 1
instruction manual AXlink Bus Controllers AXB-MIDI MIDI Interface ...
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AMX AXB-MIDI - page 2
AMX Limited W arranty and Disc laimer AMX Corporation warrants its products to be free of defects in material and workmanship under normal use for three (3) years from the date of purchase from AMX Corporation, with the following e x ceptions: • Electroluminescent and LCD Control Pane ls are warranted for three (3) years, except for the display a ...
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AMX AXB-MIDI - page 3
T able of Contents i AXB-MI DI MIDI Interf ace T able of Contents Product Information ........ ................ ................. ................ .............. .............. ............ 1 Installation ................. ................ ................. ................ ................. ................ .............. 3 Setting the DEVICE DIP ...
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AMX AXB-MIDI - page 4
ii AXB-MIDI MIDI Interface T able of Contents ...
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AMX AXB-MIDI - page 5
Product Information 1 AXB-MI DI MIDI Interf ace Pr oduct Inf ormation The AXB-MIDI MIDI Interface is an Axcess de vi ce for pass-through and control of Musical Instrument Digital Interface (MIDI) protocol signal s. This unit can act as a MIDI matrix switcher . AXB-MIDI decodes and encodes MIDI protocol si gnals and routes the si gnals according to ...
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AMX AXB-MIDI - page 6
Product Information 2 AXB-MIDI MIDI Interface AXB-MIDI Specifications (Cont.) Input buff er • 3,072 bytes Output buff er (AXlink) • 6,143 bytes Max. Length of SEND_STRING to device •6 4 Max. Length of data packe ts from device •6 4 LED Indicators • AXlink Status LED (green): Lights to indicate that the AXB-MIDI is operational and interf a ...
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AMX AXB-MIDI - page 7
Installation 3 AXB-MI DI MIDI Interf ace Installation Setting the DEVICE DIP Switch The 8-position DIP switch (see FIG. 1) sets the AX link device number for the AXB-MIDI. The device number must match the number assigned in the Axcess software program. The Device DIP switch e xample shown in FIG. 2 is set to the factory default setting of 90 (2 + 8 ...
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AMX AXB-MIDI - page 8
Installation 4 AXB-MIDI MIDI Interface AXlink Wiring Gu idelines The follo wing table lists wire sizes and maximum lengths allo wable between the AXB-MIDI and the Central Controller power supply . The maximum wi ring lengths are based on 13.5 VDC @ 100 mA av ailable at the Central Con troller's po wer supply output cable end. If the AXB-MIDI i ...
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AMX AXB-MIDI - page 9
Installation 5 AXB-MI DI MIDI Interf ace accommodate the 75 mA draw of the AXB-MIDI. Make sure to connect the GND and +12 VDC wire on the AXB-MIDI AXlink connector end. Do not connect the optional +12 VDC power supply wire to the Central Controller's power supply side of the AXlink connector . MIDI cabl e connectors The four MIDI jacks on the ...
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AMX AXB-MIDI - page 10
Installation 6 AXB-MIDI MIDI Interface Y ou will need a flat-blade tool (non-conducting ) that can be slipped under th e lithium battery to pry it up and out of the socket. The location of the Lithium battery on the circuit bo ard is shown in FIG. 7. 1. Discharge the static electricity from your body . 2. Unplug all cables from the AXB-MIDI. 3. Rem ...
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AMX AXB-MIDI - page 11
Programming 7 AXB-MI DI MIDI Interf ace Pr ogramming Send Commands Send_Commands contro l AXB-MIDI signal routing by the Central Controller . The AXB-MIDI supports the Send_Com mands described below . AXB-MIDI Send_Commands Command Description INA Configure the destination for the incoming data on IN A (see the IN A and IN B Signal Routing table on ...
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AMX AXB-MIDI - page 12
Programming 8 AXB-MIDI MIDI Interface IN A and IN B MIDI Signal Routing The following table sho ws all routing value possibilities for IN A and IN B incoming MIDI signals in relation to the AXB-M IDI rear panel connectors. The value determines where the IN A and IN B MIDI signals will be routed. Inputs are controlled as Channels 1 throu gh 8. AXB-M ...
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AMX AXB-MIDI - page 13
Programming 9 AXB-MI DI MIDI Interf ace MIDI Pr ogramming Most MIDI command strings consist of a status byte follo wed by one or two data bytes. The most notable exception to this is the Sy stem Exclusive which starts with a status b y te of $F0, has 4 or more data bytes, then ends with a status byte of $F7. Status b ytes are always $80 or greater ...
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AMX AXB-MIDI - page 14
Programming 10 AXB-MIDI MIDI Interface SEND_STRING MIDI,"$B0 + (MIDI_CHANNEL - 1), CONTROLLER, VALUE" Specific example set volume to 50% on MIDI ch 5: MIDI_CHANNEL = 5 5 - 1 = 4 $B0 + 4 = $B4, The standard MIDI Volume controller is 7, 127 * 50% = 64 (approximately), thus the send string, SEND_STRING MIDI,"$B4, 7, 64" Selected MI ...
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AMX AXB-MIDI - page 15
Programming 11 AXB-MI DI MIDI Interf ace Summary of MIDI Messages The following information refers to MIDI messages and Control Change Messages. The following table lists and describe s Channel V oice messages ([nnnn = 0-15 (MIDI Channel Number 1-1 6)]): (* MMC STOP *) SEND_STRING MIDI,"$F0,$7F,$7F,$06,$01,$F7" (* MMC PLAY *) SEND_STRING ...
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AMX AXB-MIDI - page 16
Programming 12 AXB-MIDI MIDI Interface The following table lists and desc ribes System Common messages : Channel V oice Messages (Cont.) Status (D7---D0) Data By tes (D7---D0) Description 1100nnnn • 0ppppppp • Program Change. • This message sent when the patch number changes. • (ppppppp) is the new program n umber. 1101nnnn • 0vvvvvvv • ...
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AMX AXB-MIDI - page 17
Programming 13 AXB-MI DI MIDI Interf ace The follo wing table lists and describes System Real-T ime Messages: The follo wing table lists and describes Channel Mode messa ges: System Real-Time Messages Status (D7---D0) Data By tes (D7---D0) Description 11111000 • Timing Clock. • Sent 24 times per quar ter note when synchron ization is required. ...
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AMX AXB-MIDI - page 18
Programming 14 AXB-MIDI MIDI Interface Channel Mode Messages (Cont.) Status (D7---D0) Data By tes (D7---D0) Description 1011nnnn (Cont.) • All Notes Off. When an All Notes Off is received, all oscillators will turn Off. c = 123, v = 0: All Notes Off c = 124, v = 0: Omni Mode Off c = 125, v = 0: Omni Mode On c = 126, v = M: Mono Mode On (P oly Off ...
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AMX AXB-MIDI - page 19
Programming 15 AXB-MI DI MIDI Interf ace ...
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AMX AXB-MIDI - page 20
AMX reserves the right to alter specif ications with out no tice at a ny time. brussels • dallas • los ang eles • mexico city • philad elphia • shanghai • singapor e • tampa • toronto* • yo rk 3000 research drive, richardson, TX 75082 USA • 469.624.8000 • 800.222.0193 • fax 469.624.7153 • technical support 800.932.6993 032 ...
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