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Crestron QM-MD8x8 QuickMedia Distribution System

Signal Values for AudioOut Selections

SIGNAL VALUE SOURCE

0 Mutes the audio output

1 Selects audio input 1

2 Selects audio input 2

3 Selects audio input 3

4 Selects audio input 4

5 Selects audio input 5

6 Selects audio input 6

7 Selects audio input 7

8 Selects audio input 8

NOTE: Use an Analog Initialize to send a decimal input signal to the symbol.

QM-MD8x8 Serial Input Signal Descriptions

INPUT DESCRIPTION

Control$ Accepts serial commands for routing signals.

Allows users to query the switch for current

status. See “Appendix: Serial Protocol” on page

34.

NOTE: When programming the MD8x8 using serial protocol, digital and analog

commands should not be used. However, digital and analog output can be monitored

by the control system. Similarly, if the MD8x8 is to be programmed with digital and

analog commands, serial commands should not be used.

QM-MD8x8 Digital Output Signal Descriptions

OUTPUT DESCRIPTION

LocalMode-FB Indicates that the MD8x8 has been put into local

mode via the LOCAL button on the unit. The

output remains high for as long as the unit is in

local mode. The analog feedback outputs will

report the audio/video sources present at each

QM output regardless of the mode.

QM-MD8x8 Analog Output Signal Descriptions

OUTPUT DESCRIPTION

VideoOut1-FB through

VideoOut8-FB

Indicates the video source that is selected.

AudioOut1-FB through

AudioOut8-FB

Indicates the audio source that is selected.

NOTE: Returned values match values that were selected from the front panel or

from the VideoOut and AudioOut inputs.

QM-MD8x8 Serial Output Signal Descriptions

OUTPUT DESCRIPTION

Control$-FB Sends out unsolicited changes that occur when

verbose mode is on and provides complete

switch feedback when queried. See “Appendix:

Serial Protocol” on page 34.

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