Bose FreeSpace 8 설치 관리자 매뉴얼 - 페이지 12

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Appendix A: Controller Specifications

A.1

The FreeSpace

system controller (Model 8/32) accepts AC supply voltages from 80 to

265, 50Hz or 60Hz.

A.1.1 Balanced input terminals

Balanced inputs with gain switches, protection diodes, and RFI/EMI noise suppression.

A.1.2 Page input

Gain is switchable for either microphone or line level inputs.

• Page trigger sensitivity

• Mic input sensitivity

• Line input sensitivity

• Page input impedance

A.1.3 Channel A and Channel B input

Balanced Channel A and Channel B inputs with gain switches.

• Line input sensitivity at 300mV

• Line input sensitivity at 2V

• Line input impedance

A.1.4 Input common mode ripple rejection

• 40dB or greater

A.1.5 Opti-voice

system circuitry

The system automatically switches from music to page during paging.

A.1.6 Automatic gain control with LED indication

Adjusts paging volume. LED flickers at optimum volume.

275µV minimum

5mV nominal, 250mV maximum

100mV nominal, 1V maximum

3kΩ (Mic), 200kΩ (Line), balanced

200mV nominal, 300mV maximum

1V nominal, 2V maximum

2kΩ (300mV), 7.7kΩ (2V), balanced

AM177675-2_04_V.pdf • May 7, 2002