PI Master Station MS301

Three circuits rather than the usual two

Each circuit can be Intercom or IFB in any combination.

Circuits linkable, A+B or A+B+C, with front panel switch

Each circuit may have its termination circuit lifted via rear panel DIP switch.

Independent level control of program audio for each circuit, with an LED VU meter for each

Mic switch on each circuit can be quickly tapped for locking or held and released for momentary.

Internal power supply is internal, completely linear (except for microprocessor functions) with 2.7A output. Toroidal transformer. Extensive monitoring and auto control.110/220V, 50/60Hz

Full duplex, hands-free operation in moderately noisy environments. Requires plug-in gooseneck microphone. Particularly noisy environments require a noise canceling differential gooseneck mic.

Paging output (balanced and isolated) on rear panel activated by front panel momentary push button. Dry contacts (rear panel) simultaneously closed. Requires gooseneck microphone

Front panel 4-pin XLR may be used for gooseneck microphone or headset

Front panel green LED indicates presence of 24VDC across the circuits

Three front panel red LEDs report status of each circuit. In case of trouble (short, overheating etc.) the appropriate red LED illuminates and flashes. Repairing the problem automatically restarts the circuit.