Getting control data around a rig reliably is what this category solves: DMX splitters, DMX-over-Ethernet nodes, wireless DMX systems, recorders and wall plates from Elumen8, Chauvet, ADJ, ChamSys and City Theatrical.

The subcategories map to four jobs. DMX Signal Processing covers splitters, mergers and network nodes, the backbone hardware that isolates legs of a rig so one damaged cable or faulty fixture cannot take down the whole universe. Splitters & Converters holds rack-format units like the ChamSys GeNetix GD10 for permanent racks and touring distros. Wireless DMX carries W-DMX and CRMX compatible transmitters and receivers for spans where cable is impractical, and Wall Plates provides install-grade termination points for venues. Across all of them the same principles apply: use optically isolated outputs on anything mission-critical, keep RDM support in the chain if you rely on remote fixture configuration, and move to Ethernet-based distribution once the fixture count pushes past what a couple of physical universes handle cleanly.

Playback recorders such as the Elumen8 Cygnus QR let installed venues run recorded states without a console present. If a distribution design is getting complicated, it is usually cheaper to ask before buying than to re-rack afterwards.