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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 70V4HOT
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