Roundel or Rondel. A roundel is a small circular decorative plate used extensively in Renaissance courtyards and arcades often a niche containing a bust. A roundel window is a small, ornate, circular window.oundel or Rondel. A roundel is a small circular decorative plate used extensively in Renaissance courtyards and arcades often a niche containing a bust. A roundel window is a small, ornate, circular window.
Extended active duty is defined as active duty performed by a member of a Reserve component when strength accountability passes from the Reserve component to the active military establishment.. - DoD Financial Management Regulation. Volume 7A, Chapter 56. tlnmcfat3.
Extended service set. An extended service set (ESS) is a set of connected BSSs. Access points in an ESS are connected by a distribution system. Each ESS has an ID called the SSID which is a 32-byte (maximum) character string. Distribution system. A distribution system (DS) connects access points in an extended service set.