Terminal Equipment (TE) - Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTNs) of TE supporting the voice telephony service in which network addressing, if provided, is by means of Dual Tone Multi Frequency (DTMF) signalling
Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; -- Part 2-8: Specification of environmental tests; Stationary use at underground locations (ETSI EN 300 019-2-8 V2.2.1 (2020-03))
Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; -- Part 2-3: Specification of environmental tests; Stationary use at weatherprotected locations (ETSI EN 300 019-2-3 V2.5.1 (2020-10))
Environmental Engineering (EE); Power supply interface at the input of Information and Communication Technology (ICT) equipment; -- Part 3: Up to 400 V Direct Current (DC) (ETSI EN 300 132-3 V2.2.1 (2021-07))