NetComm NCT480 manual Maximum SNR Margin, Transmit power to get a noise margin below this limit

Item

Description

Maximum SNR Margin	This specifies Maximum SNR Margin which the ATU-R receiver shall try to sustain. If
	the noise margin is above this level, the ATU-R shall request the ATU-C to reduce the
	transmit power to get a noise margin below this limit.
	Valid values: 0 ~ 310 (dB/10)
Minimum SNR Margin	This specifies Minimum Noise Margin which the ATU-R receiver shall tolerate. If the
	noise margin falls below this level, the ATU-R shall request the ATU-C to increase the
	ATU-C transmit power. If an increase to ATU-C transmit power is not possible, a loss-of-
	margin (LOM) defect occurs, the ATU-R shall fail and attempt to reinitialize.
	Valid values: 0 ~ 310 (dB/10)
Tx Rate and Delay (ATUC/ATUR)
Minimum Tx Rate	Configured Minimum Transmit rate for ADSL line channels, in bps.
	Valid values (ATU-C Downstream): 32 ~ 28000 (kbps)
	Valid values (ATU-R Upstream): 32 ~ 2784 (kbps)
Maximum Tx Rate	Configured Minimum Transmit rate for ADSL line channels, in bps.
	Valid values (ATU-C Downstream): 64 ~ 28000 (kbps)
	Valid values (ATU-R Upstream): 0 ~ 2784 (kbps)
Maximum Interleave Delay	Configured maximum Interleave Delay for this channel. Interleave delay applies
	only to the interleave channel and defines the mapping (relative spacing) between
	subsequent input bytes at the interleave input and their placement in the bit stream at
	the interleave output. Larger numbers provide greater separation between consecutive
	input bytes in the output bit stream, allowing for improved impulse noise immunity at
	the expense of payload latency.
	Valid values: 0 ~ 255 (mSec)
Power Management
Power Management mode	Power Management-related parameter used by ATU-C to set the allowed link states.
	Both bit values can be given simultaneously in the input.
L2 Entry Rate (Kbps)	Power Management configuration parameter. L2 state entry data rate.
	Valid values: 0 ~ 30000
L2 Minimum Rate (Kbps)	Power Management configuration parameter, related to the L2 low power state. This
	parameter specifies the minimum net data rate during the low power state (L2).
	Valid values: 8 ~ 1024 (kbps)
L2 Entry Time (sec)	Power Management configuration parameter. Min L2 entry rate time
	Valid values: 900 ~ 65535
L2 Exit Rate (Kbps)	Power Management configuration parameter. L2 state exit data rate.
	Valid values: 0 ~ 30000
	Table 4-2 Monitoring Line Profile Configuration

NCT480 IP DSLAM User Guide	YML856 Rev3
58	www.netcomm.com.au