| Description | The minimum Noise Margin the xTU-C receiver shall tolerate.
If the noise margin falls below this level, the xTU-C shall
request that the xTU-R increase the xTU-R transmit power.
If an increase of xTU-R transmit power is not possible, a loss-
of-margin (LOM) defect occurs, the xTU-C shall fail and attempt
to re-initialize and the NMS shall be notified. The minimum
noise margin ranges from 0 to 310 units of 0.1 dB (physical
values are 0 to 31 dB). A value of 0 means that there is no
minimum. |