Hi @andreas.l

You cannot connect directly to TRCC using the legacy data formats - you would need to use OMM based API such as EMA / ETA.

If however, you are contributing to TRCC via a deployed TREP system and the MarketFeed to OMM conversion is enabled on your TREP, then you should be able to contribute to TRCC using the legacy data format. In other words you contribute your data over a SSL connection to the ADS. The ADH component of the TREP should then be able to convert and forward your contribution to TRCC.