The TCO module is an optional extension for certain RME cards/systems. It is inserted into a free slot of the housing and connected to the motherboard by a narrow ribbon cable. The small plug-in module equips the HDSP/HDSPe cards with a word clock input, and also opens the possibility of synchronization to LTC and video.
Thanks to SteadyClock the TCO not only extracts absolute position information from LTC, but also a very low jitter word clock from LTC and video. This ensures connection and sample accurate timecode synchronization to any audio and video feed.
A TCO can be used with multiple cards simultaneously, provided that a card supporting the TCO is present in the network.