ACS implements two similar but different protocols: RADIUS and TACACS+.
You're using terminology that suggests you want TACACS+. I'm new to UAC, but I don't think that UAC contains a TACACS implementation.
You could switch your routers & switches to use RADIUS instead of TACACS+, but that's non-trivial.
Hi,
Juniper Unified Access Control (UAC) is Radius RFC standards-based on, as per my knowledge as long as the switch or the router is capable of implementing the TACACs, we can configure corresponding standard radius request/response attributes on the IC.
Regards,
Kannan