The present document specifies technical characteristics and methods of measurements for the following types of equipment: Type 1 equipment: SRDs in data networks: Type 1a: Terminal nodes Type 1b: Network nodes Type 1c: Network access points Type 1a terminal nodes and type 1b network nodes are fixed SRDs, operating up to 500 mW e.r.p. and with adaptive power control, which are intended to operate in association with other SRDs to form data network topologies supporting the intended application. Type 1c network access points are specific fixed SRDs, operating up to 500 mW e.r.p. and with adaptive power control, supporting interconnection of a network of SRDs with an external network or service.