Matrix Commands - Polycom Vortex EF2241 Programming Manual

the input gains being incremented by 3 dB so that channels 1-4 are at 13 dB and channels A-D are at 3 dB.
The Vortex will respond with a status message of ' B04GAINI*ææææçççç '. (13 + 132 = 145 = 0x91 (hex)
= æ (ASCII), 3 + 132 = 135 = 0x87 (hex) = ç (ASCII))
Queries using the '?' character are straightforward. For example, ' B04GAINI1? ' might return '
B04GAINI110 ', while ' B04GAINI*? ' might return ' B04GAINI*ÄÄÄÄäääää '.

6.4. Matrix Commands

Matrix commands are used for controlling parameters that exist at the crosspoints of the mixing matrices.
Typical parameters include gating (for automixed signals), gain and mute. Before describing the matrix
commands, it is necessary to give a description of the matrices involved. During the following discussion, it
will be helpful to refer to the figure below, which shows all the matrices with their input and output labels.