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Adastra Adastra



RM-4B Call Station for RM244V

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Paging microphone with call station base for use with the RM244V mixer-amp. Connected via RJ45 for both signal and power to simplify wiring. Zone assign buttons enable calling to one or all zones. Pressing the page button mutes all audio playback and plays one of 8 selectable chimes, opening the microphone to the selected zone(s). Pressing the reset button mutes the microphone and resumes background music playback to all zones. This system offers 4-zone paging without the additional cost of using a quad amplifier.
Dimensions:460 x 140 x 115mm
Max. connection length:100m (CAT5 cable) or 1km with optional 24Vdc adaptor
Connectors:RJ45 to amplifier, 24Vdc power jack, 3.5mm aux in
Power supply:24Vdc, 500mA from RJ45 or optional adaptor
Output impedance : balanced:600 Ohms
Output level:10dBV
Input level:Mic: -46dBV, Aux: -10dBV
Input impedance:Mic: 600 Ohms, Aux: 50k Ohms
S/N ratio:-60dB (all channels selected)
Interface:RS-485 control
Zone assign:4 zones or all selectable
Frequency response : -3dB:150Hz - 22kHz
Capsule:Back electret condenser
Polar pattern:Cardioid
Controls:Aux/Mic/Chime levels, chime DIP switches, zone/page buttons
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