beautypg.com

Aiphone AI-900 User Manual

Page 31

background image

31

12.6.2. External amplifier and AI-900RS connection

1-core shielded cable

1 twisted pair cable

AI-900RS

CN1

CN5

Voice output

Voice input

HOT

HOT

GND

GND

(For paging amplifier)

Paging amplifier *

1

GND

COM

COM

25V

70V

4

HOT

INPUT

OUTPUT

Front view of
the circuit board

Electrical characteristics of the CN5 connector

Voice output: Unbalanced, –20 dB*

2

signals to be sent to a paging amplifier

Voice input: Balanced, acceptable signals on the 25 V line output from a paging amplifier

*

1

Rated at over 16 W power output (ex. BG-130 30 W amplifier)

*

2

0 dB = 1 V