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1. SUMMARY The RS-232C protocol described in this document is designed to be used to control the
9000 Series Amplifier from a PC and/or remote controller. This specification applies to the
9000 Series firmware version 3.10 or later.
Settings that can be controlled are as follows:
• Channel fader gain
• Crosspoint gain (Mixer mode only)
• Preset memory recall
• Channel ON/OFF
• Power ON/OFF
• Tone control (Bass/Treble)
• EQ settings (ON/OFF, Band number selection, Gain setting, Q setting, Center frequency setting)
• Loudness compensation settings
• Filter settings (High Pass Filter/Low Pass Filter)
• Input sensitivity setting
• Phantom power setting
Following values can be read from the 9000 Series Amplifier.
• Channel name
When connecting the PC and/or remote controller to the 9000 Series Amplifier using this protocol,
set the 9000 Series Amplifier’s RS-232C port as follows:
Bit rate: 9,600/19,200/38,400/57,600 bps (Select the band rate depending on the
remote controller to be connected.) (See; Operating instructions of the 9000
Series Amplifiers.)
COMMANDLIST, COMMUNICATION EXAMPLES and PARAMETER TABLES are
available at the end of each section of this document.
• 9,600/19,200/38,400/57,600 bps, 8 bits, non-parity, stop bit: 1, non flow control
• Connector: D-sub 9 pins, straight cable
• Signal line: No.2=TX, No.3=RX, No.5=Ground