1. The calculated or measured noise power, within the bandwidth being used, at the receive end of a circuit, channel, link, or system.
2. The absolute power of the noise measured or calculated at a receive point.
Note: The related bandwidth and the noise weighting must also be specified.
3. The value of noise power, from all sources, measured at… (Read More →)

The signal level at a receiver input terminal.
Note 1: The signal bandwidth and the established reference level must be specified.
Note 2: The RSL is usually expressed in dB with respect to 1 mW, i.e., 0 dBm.

The sink or terminator of any signal on a transmission medium. [T1.408-1990]

The time interval from (a) the instant a step rf signal, at a level equal to the receiver threshold of sensitivity, is applied to the receiver input to (b) the instant the receiver output amplitude reaches 90% of its steady-state value.
Note: If a squelch circuit is operating, the receiver attack-time delay includes the time for the receiver to break… (Read More →)

Synonym lockout.

The maximum acceptable value of the received average optical power consistent with a bit error ratio (BER) of 1 x 10-10 or better. [T1.646-1995]

The time interval from removal of rf energy at the receiver input until the receiver output is squelched.

The minimum value of average received power to achieve a 1 x 10-10 bit error ratio. It includes power penalties caused by use of a transmitter under standard operating conditions with worst-case values of extinction ratio, pulse rise and fall times, optical return loss, receiver connector degradations, and measurement tolerances. [T1.646-1995]

The switch or network to which a subscriber's directory number has been ported. [T1.711-1999]

Reclamation refers to the process by which service providers are required to return numbering resources to the NANPA (FCC 00-104, §
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2. 15 (i) (1))