SSH EN 302 099 V1.1.1:2002

Environmental Engineering (EE); Powering of equipment in access network

Scope

The present document describes the principles for powering of telecommunications equipment in access network and
contains requirements for the powering systems, laying down:
- the characteristics of the input and output interfaces of the power units;
- the power back-up conditions for TE including a power unit;
- the management data, necessary to guarantee the availability of the service and to ensure the maintenance of the
power units.
The present document takes into account the characteristics of access network equipment for which the limits of
responsibility in the installation or design of the power plants are very different than for equipment of telecom centre: it
goes from "complete integration of the power plant in the TE" till "remote power feeding from a distant power plant".
The present document applies for the powering of all equipment of the access network (copper, fiber or radio networks)
located outside telecommunications centres. The access network is defined as the part of the telecommunications
network, which is comprised between the customer terminal installation and the first exchange (switching unit). The
customer terminal and the switching unit are excluded of the application field of the present document.