User manual AMX AXB-MIDI MIDI INTERFACE

[. . . ] instruction manual AXB-MIDI MIDI Interface AXlink Bus Controllers AMX Limited Warranty and Disclaimer 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 exceptions: · · · · · Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year. Disk drive mechanisms, pan/tilt heads, power supplies, MX Series products, and KC Series products are warranted for a period of one (1) year. Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year. Batteries and incandescent lamps are not covered under the warranty. This warranty extends only to products purchased directly from AMX Corporation or an Authorized AMX Dealer. [. . . ] AXlink Wiring Guidelines Wire Size Max Wiring Length 18 AWG 20 AWG 22 AWG 24 AWG 1, 173. 71 ft (357. 74 m) 742. 57 ft (226. 34 m) 462. 96 ft (141. 11 m) 291. 83 ft (88. 95 m) If the AXB-MIDI is installed farther away from the Central Controller than recommended, connect an optional 12 VDC power supply to the AXlink connector on the AXB-MIDI rear panel (see the Wiring AXlink with Optional 12 VDC power supply section on page 4). Wiring AXlink with Optional 12 VDC power supply Connect the Central Controller's AXlink connector to the AXlink connector on the rear panel of the AXB-MIDI, as shown in FIG. 4 Wiring AXlink with Optional 12 VDC power supply PWR + AXP/TX AXM/RX GND Central Controller Local +12 VDC power supply (coming from the PSN power supply) Use an external 12 VDC power supply when the distance between the Central Controller and AXB-MIDI exceeds the limits described in Figure 9 or the power supply current capacity cannot 4 AXB-MIDI MIDI Interface Installation 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 cable connectors The four MIDI jacks on the rear panel (IN A, IN B, THRU and OUT) are identical 5-pin DIN type connectors. MIDI cable lengths will be determined by physical placement of the Central Controller, AXB-MIDI, and the equipment providing the MIDI input protocol. 1 - (not used) 5 - Signal ( -) 2 - shielded ground FIG. 5 MIDI DIN connector pinout 3 - (not used) 4 - Signal (+) ! Pin 2 (shielded ground) is only connected on the THRU and OUT connectors. It is recommended that to maintain signal integrity when connecting to any MIDI device, cable lengths be no more than 20 feet (6. 01 meters). ! Replacing the Lithium Battery A lithium battery (Figure 15), with a life of approximately 5 years, in the AXB-MIDI protects stored presets if a power loss occurs. Write down the replacement date on a sticker or label by adding 5 years to the date of installation. 6 Lithium battery and socket All control commands in AXB-MIDI memory are lost when the lithium battery is replaced. Contact your AMX dealer before you replace the lithium battery and verify that they have a current copy of the Axcess program for your AXB-MIDI. This will avoid any inadvertent loss of data or a service outage. AXB-MIDI MIDI Interface 5 Installation Static electricity can damage electronic circuitry. Before removing the lithium battery from the enclosure, discharge any accumulated static electricity from your body by touching a grounded metal object. You will need a flat-blade tool (non-conducting) that can be slipped under the lithium battery to pry it up and out of the socket. The location of the Lithium battery on the circuit board is shown in FIG. RXACLR Clear characters waiting in the IN A receive buffer (to be sent to the Central Controller, MIDI THRU, or MIDI OUT). RXBCLR Clear characters waiting in the IN B receive buffer (to be sent to the Central Controller, MIDI THRU, or MIDI OUT). RXCLR Syntax: 'RXACLR' Example: SEND_COMMAND <device>, 'RXACLR' Clears the IN A receive buffer of all contents. Syntax: 'RXBCLR' Example: SEND_COMMAND <device>, 'RXBCLR' Clears the receive buffer contents for IN B. Syntax: Clear all characters waiting in 'RXCLR' both receive buffers (to be Example: sent to the Central SEND_COMMAND <device>, 'RXCLR' Controller, MIDI THRU, or MIDI OUT). RXON Syntax: Enable the ABX-MIDI to send 'RXON' received characters to the This command is automatically sent by the Central Controller when a Central Controller. Example: SEND_COMMAND <device>, 'RXON' Sends received characters from IN A and IN B to the Central Controller. AXB-MIDI MIDI Interface 7 Programming AXB-MIDI Send_Commands (Cont. ) Command RXOFF The AXB-MIDI will not pass on received characters to the Central Controller. TXCLR Description Syntax: 'RXOFF' Example: SEND_COMMAND <device>, 'RXOFF' Turns IN A and IN B transmit to the Central Controller off. [. . . ] · This message is sent to indicate a change in the pitch wheel. (mmmmmm) are the most significant 7 bits. The following table lists and describes System Common messages: System Common Messages Status (D7---D0) 11110000 Data Bytes (D7---D0) · 0iiiiiii · 0ddddddd . . · 0ddddddd · 11110111 Description · System Exclusive. · This message makes up for all that MIDI doesn't support. [. . . ]