Zektor HDA800 User Manual - Basic Control

HDA800(V2) Serial Protocol, Version 1.3, 9/12/13

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Basic Control

‘MZ’ Mute (Disconnect) Zone(s) -- Audio Switch

This is the command used to mute, or disconnect a zone from any source. When audio is muted, the 

sound is turned off. When video is muted, video is turned off, leaving a black screen. (Or possibly blue 

screen, depending upon how your receiver acts when video has been turned off.)

The different forms of the MZ command are:

^MZ @

zone,@zone,mute$

Mute all channels of a zone or zones.

^MZ.

ch @zone,mute$

Mute only the selected channels of zones.

^MZ.

ch @zone,+$

Toggle the mute setting of zones.

^MZ ?$

In polled mode, reads current settings of all logged changes.

^MZ @

zone,?$

Read current settings of given zones.

^MZ.

ch @zone,?$

Read current settings of the selected channels of zones.

Response Strings:

^=MZ @

zone,mute$

or,

^=MZ.

ch @zone,mute$

Where:

@

zone

= One (or more) zones to be mapped.

mute

= Mute setting (0=Unmuted, 1=Muted).

ch

= Channel bitmap (Range 1-3).

‘MZ’ Examples

The ‘MZ’ command in its simplest form:

^MZ @1,@3,1$

mutes all channels of the zones ‘1’ and ‘3’. You can also mute/unmute multiple zones using a single 

command. For instance:

^MZ @1,1,@3,@5,0$

mutes zone ‘1’, and unmutes zones ‘3’ and ‘5’.

By appending a ‘.’ and a channel bitmap to the ‘MZ’ command, the command can also be used to mute 

individual channels. 

Currently the only channel available to the Audio switch is channel ‘2’.

‘MZ’ Query Examples

There are two forms of the query response string, depending upon whether any channel breakaway 

options are in affect.

For instance if HDMI video, digital audio, and HDMI audio, are all muted on zone ‘1’, then:

^MZ @1,?$

>- 

Query request sent to the A/V switch

would respond with:

^+$

Indicates no errors in the command

^=MZ @1,1

Video and all audio channels are muted on zone ’3’