Lectrosonics EQ1_EQ2 - Manual (Page 12)

General Device Commands
Acknowledge - Causes the EQ1/EQ2 to send its “name” string back. The first data byte is the length of the name
string, and the rest of the data bytes are the device name.
Host sends command - 1
Host receives data bytes: Byte 1 is the length of the name string (3 for the EQ1 and EQ2), bytes 2, 3, and 4
are the ASCII values for “EQ1” (69,81,49).
Change Device Address - Changes the EQ1/EQ2 device address and stores the new address in EEPROM.
Host sends command - 2
Host sends 1 byte: device address, valid range 128 to 254.
Output Firmware Version - Causes the EQ1/EQ2 to outputs the version number of the current firmware. For ex­
ample, Version 1.0 software would be returned as 10 (decimal).
Host sends command - 25
Host receives data byte: firmware version.
Output Local/Remote Status - Outputs the current status of the EQ1/EQ2, Local or Remote. 0 indicates Local
mode, 1 indicates Remote.
Host sends command - 21
Host receives 1 byte: EQ1 Mode
Set Local/Remote Mode - Allows the Local/Remote status of the EQ1/EQ2 to be set. 0 is Local mode, 1 is Remote.
New value is stored in EEPROM.
Host sends command - 22
Host sends 1 byte: 0 or 1, Local or Remote
Host receives 1 byte: 100 to indicate successful completion.
Equalizer Commands
Output EQ Band Level - Outputs band levels, either singly or all 27. Range is from 0-30, where 0 corresponds to
-15dB, and 30 to +15dB. The first byte is the curve to use for output. The second byte is the particular band
of interest.
Host sends command - 3
Host sends 2 bytes:
Byte 1: 0 - Current EQ setting
1 - Stored EQ curve
2 - User Target curve 1
3 - User Target curve 2
4 - User Target curve 3
5 - Factory Target curve 1
6 - Factory Target curve 2
7 - Factory Target curve 3
Byte 2: 0-26 gives single band level 1-27 (corresponding to 40Hz - 16KHz, ISO
centers) 27 or greater outputs all 27
Host receives 1 or 27 bytes (see above): EQ band levels
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