By simply changing the CPU card in a UMAC Turbo system to a MACRO CPU, you can change the personality of UMAC system to a UMAC MACRO station. Working with a Turbo PMAC2 Ultralite or another UMAC Turbo with MACRO Interface, the UMAC MACRO station can be distributed to a local area on the MACRO ring while retaining all the functionality of a UMAC Turbo.