It should work if your cable-provider als transmit ECMs for CAID 1833 - unfortunatelly for Unitymedia and Kabel Deutschland this is not the case, both providers only transfer ECMs for the CAIDs of there own cable-card. But if you have a another cable provider, most likely a small one not providing a own decoding card, it might work.
Depending on your receiver you might be able to check witch ECMs are transmitted. Oscam for example shows all available ECM-CAIDs (does not require a working connection, will also be shown with no reader configured at all)