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9 appendix b - amx/creston – Shure Conference Phone User Manual

Page 23

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Switch input off
Switch input on

Switch output off
Switch output on

01

h

to 1E

h

--

--

00

h

01

h

Toggle input on/off switch

--

Toggle output on/off switch

--

00

h

01

h

English

22

9 Appendix B - AMX/Creston

10

General command structure:

F0

h

h

>

h

>

F7

h

There are three types of commands: Set, Get and Report:

-

Set: these commands are used to change the status of the power supply (e.g. set the volume). The
supply answers with a Report.

-

Get: these commands are used to find out the status of the power supply. The supply answers with a
Report. The status of the supply is NOT changed.

-

Report: these commands are sent from the power supply anytime the status of the supply changes
(e.g. you turn up the volume at the power supply). It is also sent from the supply after a Set or Get
command.

Command byte

Set commands

Data byte

Description

01

h

02

h

03

h

--

--

04

h

05

h

06

h

07

h

08

h

09

h

0A

h

01

h

to 1E

h

Set the input level,
01

h

=mute

1E

h

=highest level

Increase input level by one step

Decrease input level by one step

Set the output level,
01

h

=mute

1E

h

=highest level

Increase output level by one step

Decrease output level by one step