LIGHTNING PROTECTION - TELECOMMUNICATION LINES -- PART 1: FIBRE OPTIC INSTALLATIONS.
€81.00
Attachment requirements for Data Terminal Equipment (DTE) to connect to public networks that have physical and electrical network presentations based upon the ITU-T V-series of Recommendations.
€96.00
Speech Processing, Transmission & Quality Aspects (STQ); QoS parameter definitions and measurements; Part 1: Parameters for voice telephony service required under the ONP Voice Telephony Directive 98/10/EC.
€77.00
Telecommunications Security. A guide to specifying requirements for cryptographic algorithms.
€69.00
Business TeleCommunications (BTC); 34 Mbit/s and 140 Mbit/s digital leased lines (D34U, D34S, D140U, D140S); Network interface presentation.
€79.00
Business TeleCommunications (BTC); 34 Mbit/s digital leased lines (D34U and D34S); Connection characteristics.
€84.00
Lightning protection - Telecommunication lines -- Part 2: Lines using metallic conductors.
€102.00
Transmission of audio and/or video and related signals using infra-red radiation -- Part 6: Video and audio-visual signals.
€64.00
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 4-2: Low voltage decoupling filters - Safety requirements.
€26.00
Automatic weather stations networks. Format of weather recordings exchange. Metadate.
€28.00
Automatic weather stations networks. Characterization of the instrumentation. Automatic weather stations maintenance criteria and sensor calibration.
€35.00
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 2-3: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 2-2: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in industrial environments
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 2-1: Immunity requirements for mains communications equipment and systems operating in the range of frequencies 95 kHz to 148,5 kHz and intended for use in residential, commercial and light industrial environments
€62.00
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz -- Part 4-4: Low voltage decoupling filter - Impedance filter
€47.00
