The DHD network connects all DHD devices of a broadcast facility via IP. It carries for example trigger logics for talkback or On-Air switching, control values for microphone pre-amps or routing commands from a PC that controls the audio router. Playout-system PCs can also be part of this network, controlling the DHD consoles directly via Ember+ or the DHD External Control Protocol.
Workflow features like source sharing between studios, resource management of centralised codecs or remote control features are handled within this network.
As the DHD network covers the complete communication between the consoles, the GPIO cabling can be reduced to a minimum.