Sony MSW-900 Operation Manual page 25

8 AUDIO IN CH-1/CH-2 (audio channel 1 and channel 2 input)
connectors (XLR type, 3-pin, female) and LINE/MIC/+48 V ON
(line input/microphone input/external power supply +48V ON)
switches
These are audio input connectors for channels 1 and 2 to which you can
connect audio equipment or a microphone.
The LINE/MIC/+48V ON switches select the audio source of the audio
input signals connected to each of these connectors.
LINE: Line input audio equipment
MIC: Microphone with an internal power supply
+48V ON: Microphone with an external power supply system
9 DC OUT (DC power output) connector
This connector supplies power for a WRR-810A/860A/862A/862B UHF
Portable Tuner (not supplied). Do not connect any equipment other than
the UHF portable tuner.
Chapter 2 Locations and Functions of Parts and Controls
2
2-9