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Appendices ~ Appendix F: Serial Commands
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Note: Using the all-mic toggle might not produce the desired result, depending
on the state the mics are in. For example, if one mic is muted and all other mics
are not, an all-mic toggle would mute all others, but unmute that particular mic.
Error Codes
Error 1 The address is not valid/out of range or an invalid character.
Error 2 Could not extract a command from the string received.
Error 3 Serial overrun.
Error 4 Reserved.
Error 5 Invalid parameter.
Error 6 Unrecognized command.
The command string will then be explained (where necessary), followed by the
returned values and (where necessary) an example.
AP800 Serial Commands
Command Function
AAMB Enable/disable adaptive ambient*
MDMODE Enable/disable modem mode
AGC Enable/disable AGC*
MEQ Set/report three-band equalization*
AMBLVL Set/report ambient level
MHP Enable/disable high-pass filter*
BAUD Set/report RS-232 port baud rate
MINIT Set/report modem initialization string
CHAIRO Enable/disable chairman override*
MLINE Set/report mic/line level*
DECAY Set/report decay rate
MMAX Set/report max. number/mics
DFLTM Set/report default meter
MPASS Program modem password string
EC Enable/disable echo canceller*
MREF Set/report echo canceller reference*
ERL Return ERL for a mic channel*
MTRX Program/report matrix configuration*
ERLE Return ERLE for a mic channel*
MUTE Set/report mute status*
EQ Enable/disable equalization*
NLP Set/report nonlinear processing*
FLOW Enable/disable flow-control
Command Function
NOM Enable/disable NOM attenuation*
FMP Enable/disable first mic priority
OFFA Set/report off attenuation
FPP Set/report front-panel passcode
PAA Enable/disable PA adaptive mode
GAIN Set/report gain setting*
PCMD Program/report GPIO control pin
GATE Report mic gating status
PEVNT Program/report GPIO status pin
GMODE Set/report gating mode*
PP Enable/disable phantom power*
GRATIO Set/report gate ratio
PRESET Set/report active preset
HOLD Set/report hold time
REFSEL Set/report output for EC reference
LFP Enable/disable front-panel lock
TOUT Set/report inactivity timeout
LMO Set/report last-mic-on mode
UID Returns unit identification number
LVL Report level*
VER Return current version of firmware
MASTER Set/report master/slave settings
* Applied to a specific channel