This ETS addresses management aspects of the 64 (or n x 64) kbit/s cross connect. The Digital Cross Connect (DXC) equipment management functions are specified and management network architecture is described. Part 1 of this ETS describes requirements of cross connect equipment with 2048 kbit/s access ports for use in synchronous digital leased line networks. These requirements are limited to the basic functions, external characteristics and performance of the equipment.