RS-143 switch panel designed for use with N-8000RS or N-8010RS 2-core shielded substation interface unit. It is equipped with call switch and can be installed in 1-gang electrical box. By connecting high impedance speaker to it, hands-free conversation with master station can be made through its speaker. Also, it can be used in connection with the RS-141 IP intercom option handset.
Connects to N-8000RS/N-8010RS exchanges via shielded twisted pair wire and 25V speaker for half-duplex communication with assigned master station