Clear-Com SB-412A 4-Channel Switchboard Intercom Main Station

Clear-Com SB-412A 4-Channel Switchboard Intercom Main Station Тһе SB-412A is designed for applications in which а person needs to communicate with up to four other people or groups of people and be able to quickly change any remote station's channel assignment from the front panel.  The SB-412A's four main intercom channels can be accessed either individually or simultaneously, while still maintaining isolation between channels. Access to the four main channels is controlled by the row of pushbutton and toggle switches along the bottom right side of the front panel. Separate controls for talk and listen for each channel enhance the station's versatility.  The twelve switchboard inputs are individually assigned to опе of the four main channels or to an isolated OFF position, via the matrix switches on the left half of the front panel. Controls which affect the input and output at the station (mic, headsets, speaker, and program) are located in a row along the upper right of the frontpan