The power amplifier input module shall provide the connection between the power amplifier of the VP-2000 series and the monitoring module of the VX-2000 system. It shall facilitate the transmission of audio signals to the power amplifier while receiving audio monitor signals from it. The module shall also transmit control signals for system status monitoring, including error messages related to amplifier overheating and blown DC fuses. It shall be equipped with an RJ45 PA LINK connector for direct integration with VX-200SP, VX-200SZ, and VX-2000SF standby amplifiers.