Luminex DMX512-A 2.10 Hub (5-pin)

The DMX512-A 2.10 HUB is a full bidirectional isolated DMX splitter or
booster with 2 dedicated input connectors and 10 configurable output
connectors. All in- and outputs conform to the DMX512-A standard. This
allows half-duplex data transport, such as RDM, on a normal single pair
DMX connection. The hub is also compatible with DMX512 and DMX512 (1990).

The hub has 2 separate DMX zones (input zone A and input zone B). On
every output you can select to which zone it has to be connected. This
allows you to distribute 2 separate DMX lines (1024 channels) in any
possible output configuration.
All outputs can receive data as well and retransmit it on its selected zone.
In this way RDM data (and other bidirectional data) will be send on all
outputs and input of the same zone.