The VCC-64 allows up to 99 programmable channels and volume control (0-9). Usually installed in local zone and connected via bus to the system, it offers source selection, volume control and lock function. Installation in local zone and connected via bus to the system. 99 programmable channels. Volume control (0-9). Bus RS-485. 4 P terminal block. DIP switch. LCD Display of 2x8 character type.