State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of signal length and time of propagation in fibre, average power, attenuation and wavelength for system of fibre-optic transmission and of data transmission
Information technology. International standardized profile TAnnnn. Connection-mode transport service over connectionless-mode network service. Part 5. TA1111/TA1121 profiles including subnetwork-type dependent requirements for X.25 packet-switched data networks using virtual calls
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