Studer D950 Operating Instructions Manual page 185

D950 Digital Mixing System
DYN: The yellow DYN LED indicates that the channel's dynamics unit has been
activated.
RES: The LED labeled RES is reserved for a future function.
Bus Assignment: 48 numbered back-lit indicators display the multitrack, group, and master
bus assignments. TRK illuminates to indicate multitrack assignments, and
GRP lights to indicate group assignments. An additional array of 8 num-
bered back-lit indicators displays master bus assignments. ST illuminates
if assignments are made to the stereo master busses.
Note: A BRIGHTNESS control is provided within the TB Mic/Display Control
Unit to provide dimming of all keys, LEDs, and bar graph indicators with
the exception of the channel strip alphanumeric displays.
Desk Operation 3-109
Date printed: 03.09.03 SW V3.3