Aiphone AI-900 Especificaciones descargar pdf (Pagina 35)

12.8.2. External sound source and AI-900AF connection

The External Sound Source Distribution function can be operated using the AI-900AF.

[Connection]

To connect external sound sources to the AI-900AF, use a twisted pair cable for voice input, and a twisted pair

cable for control input (level-operated activation). The voice 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 AI-900AF connection

AI-900AF

CN1

CN2

CN3

4 twisted pair cables

To voice output (HOT)

To voice output (GND)

Mixer

Sound source

Voice (HOT)

Voice (GND)

To control input (HOT)

To control input (GND)

To control output (HOT)

To control output (GND)

Timer

Voice 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

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Aiphone AI-900 Especificaciones Pagina 35