PASO ACPMB Standard microphone base interface/PMB series

Standard microphone base interface/PMB series

The ACPMB interface module allows you to manage audio signals coming from microphones, telephone exchanges, standard stations with single-selection service calls, simulating the operation of a PASO PMB series microphone station. The units are connected together in cascade on the same line as the PMB series stations and in the connection cable (Cat5e SF/UTP) there are both the analog audio signal and the digital signal relating to the commands and addresses of the interfaces; it is possible to connect up to 4 ACPMB units on a single serial line. The audio input, with or without a Phantom power supply, can be of the microphone type (B700 series) or suitable for preamplified microphone stations (B711, B53 series, etc.); the output volume and the input sensitivity are easily adjusted using special trimmers. The interface can operate in automatic activation mode (VOX) with an adjustable intervention threshold, or be activated with a previous contact. Using special dip-switches, it is possible to set in a fixed way the selection of the zones to send the message (general system call or group of zones 1 to 6). The ACPMB model has a specific support for installation on a special omega bar mounted inside electrical cabinets or junction boxes. The ACPMB-DIN model, on the other hand, is equipped with a plastic box that allows a practical and quick installation on standard DIN rails.