Toa VS-900 - Manual (Page 39)

39
12.9.2. External sound source and VS-900AF connection
The External Sound Source Distribution function can be operated using the VS-900AF.
[Connection]
To connect external sound sources to the VS-900AF, use a twisted pair cable for audio input, and a twisted
pair cable for control input (level-operated activation). The audio input is 0 dB* and of unbalanced type. The
start input is a no-voltage make contact of 20 mA, 24 V DC max. Connect as shown below.
* 0 dB = 1 V
External sound sources and VS-900AF connection
VS-900AF
CN1
CN2
CN3
4 twisted pair cables
To audio output (HOT)
To audio output (GND)
Mixer
Sound source
Sound source
Sound source
Sound source
Voice (HOT)
Voice (GND)
To control input (HOT)
To control input (GND)
To control output (HOT)
To control output (GND)
Timer
Audio input
Control input 1
Control input 2
Control input 3
Control input 4
HOT
GND
HOT
GND
HOT
GND
HOT
GND
HOT
GND
Front view of
the cicuit board