Tech Works IC-52B, Руководство по эксплуатации и установке, Страница: 5 / 26

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IC-52B Functional Diagram
Each audio path or channel has its own audio control section, which provides Automatic Level
Control, Amplifier Muting and other functions. These can be operationally assigned for specific
applications based on placement of removable jumpers inside the unit.
A two band notch filter is included to reduce feedback. These filters are shipped from the factory
disabled; they can be enabled by moving jumpers to the Remote or Operator Channel. Notch
filters must be set up in the field.
The Logic Control section provides the interface of the control contact inputs as well as the
audio control for muting audio signals depending on how the unit is configured. If it is configured
for full duplex then only muting is enabled. If the Call In feature is active, the logic controls the
tone interfaces to the Operator Speaker amplifier.
Configurable Line Level Outputs are provided for Paging, Monitoring or Logging
A PA-BUSS output may be used with a PA-402 Power Amplifier for Pre-emptive Music