Zenitel VINGTOR STENTOFON EA1400, Инструкция по установке и эксплуатации

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A100K11939 EA1400/EA1600 Installation & User Manual 5
2.3. Audio Input
This connector is used as a line input and output with a 6-pin Phoenix MiniCombi connector:

Pin#1 & Pin#2: Balanced Line IN audio input for public announcements, alarm messages,
background music, etc.

Pin#3: Line IN audio cable shielding; connected to chassis ground.

Pin#4 & Pin#5: Balanced Line OUT for output daisy chaining of audio signal. It is dependent on the
source impedance how many amplifiers can be driven with the same audio signal. Using a low
impedance source, it is possible to drive 5 amplifiers or more with this daisy-chain method.

Pin#6: Line OUT audio cable shielding; connected to chassis ground.
For more information and application example, please refer to section 3.5. Input Connection .
2.4. Audio Control
Volume adjustment can be done through the potentiometers for Volume, Bass, and Treble.
If the Volume potentiometer is set to the mid-point position and 1Vrms/1kHz is used as input
signal, 100Vrms should be measured on the “100V” loudspeaker output.
For Volume, the control range is between -14dB and +6dB.
For Bass and Treble, the control range is between 0dB and -10dB.