DATAVIDEO ITC-300 Digital Intercom System for Up to 8 Remote UsersThe ITC 300 is a single wired communication system, featuring power over Ethernet to 8 belt packs. The ITC 300 provides 8 Way talkback and bi colour tally indicators. The director can select to talk to an individual channel or to all channels simultaneously. The ITC 300SL has a special CAT 6 connector shield to prevent the cable lost when used.