Management Client definition in Computer Security terms:
Definition(s): A configuration of a client node that enables a key management infrastructure (KMI) external operational manager to manage KMI products and services by either 1) accessing a PRSN or 2) exercising locally-provided capabilities. A management client (MGC) consists of a client platform and an advanced key processor (AKP).
Source(s): CNSSI 4009-2015
reference: CSRC Glossary