The CAS protocol does not use TLS so you should be fine.
Hi [NAME], one of my customers is using a SER-Archive via CAS on ECS. We are planing a Code-Upgrade to ECS 3.2HF3 and there are some changes in supported TLS versions.  To check compatibilty of 3.2HF3 with SER Doxis, we asked SER which TLS Version is used with Doxis.  The answer was that don't use TLS, but that they compatible with Centera API Version 3.4.757.  Will ECS 3.2HF3 support the Centera API Version 3.4.757?  Hope anyone can help me find to the right answer!  Kind regards  Matthias Meppen
Do we need TLS for CAS Connectivity?