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IB3210 Code no. 171.20.008
IB3280 Code no. 171.20.009

Input Board - RX 3000 System Control

RX 3000 Index Page

IB 3210 and IB 3280

Used to accept audio source signals, microphones, CD players, etc, for the matrix. A maximum of 4 modules can be configured for each matrix providing 32 input channels. The IB 3210 and IB 3280 audio input modules each contain 8 input circuits.
The IB 3210 has electronically balanced inputs with an option to fit a transformer to the first input.The IB 3280 has unbalanced inputs with an option to fit transformers to all 8 inputs.
Tone control trimmers are fitted to each input channel and can be adjusted by software control. (100Hz 10kHz).
The signal level of each input is adjustable from 0 to +20dB in 1 dB steps by software control.
Audio input monitoring available via software function.
All setting data is stored on E2PROM.


Specification:

Number of inputs

8 balanced inputs
IB 3210 electronic
IB 3280 transformer option

Frequency response

10Hz - 30kHz (± 3dB)

Distortion

= 0.1% (30Hz - 15kHz)

Signal/noise ratio

= 85dB

Input sensitivity

775mV nominal -77.5mV min.

Input impedance

47K ohms

Tone Controls

Bass ± 12dB - 100Hz.
Treble ± 12dB - 10kHz.

Power consumption

5V dc 70 mA
13.5V dc 100mA


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