Modular preamplifier mainframe, with 12 spaces for cards
Modular Mainframe with capacity for up to 12 electronic cards (preamplifier with adjustable sensitivity, prerecorded messages, telephone messages, automatic level control ...) and with 2 internal audio 0 dB channels: a priority one, for pagings, and a program one, for music sources. Linkable with other mainframes. Power supply 24 V DC. OPTIMUS model ref. PM-812/0.
Universal preamplifier card, RJ input, RJ output (1)
Universal preamplifier card to insert into the PM main frame. Programmable input sensitivity (MICRO, AUX AUX H and L). It has bass and treble controls, with removable buttons. Audio signal can be assigned to program output or to priority output from PM preamplifier. It includes an independent output which allows addressing the audio signal to another preamplifier or power unit. Frontal LED to indicate priority control activation. RJ45 inputs / output connectors. OPTIMUS model ref. C-810PRJ.