The HMS-4X is a 1RU digital partyline main station with 4 channels of full-duplex
audio and program audio feed that can support up to 20 beltpacks on a single
station. When using software 3.0 or higher, the HMS-4X offers 12 or 24 channels
on a single main station and has access to the browser-based Core Configuration
Manager (CCM) tool*. Install the optional expansion license to expand the channel
density by an additional 12 intercom channels for a total of 24 channels over a
single shielded twisted-pair cable.