Sennheiser SpeechLine - Meaning of the status LEDs

SL MCR DW
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Meaning of the status LEDs
The four LEDs display status information for the device as a
whole or for one of the two or four microphone channels.
When the LEDs are displaying the status of the entire device
and not the individual channels, all four LEDs (SL MCR 4 DW
variant) or the first two LEDs (SL MCR 2 DW variant) will light
up or flash.
The LEDs for each individual channel display status messages
for the corresponding radio connection.
Also note the additional information in the Control
Cockpit.
Channel 4
Channel 3
Channel 2
Channel 1
Variant: SL MCR 4 DW (4 channels)
no function
no function
Channel 2
Channel 1
Variant: SL MCR 2 DW (2 channels)