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3. To reset the counters, click
The fields on this page are explained in the following table.
Field Name
Description
Last Synchronized
The date and time that the gateway was last synchronized.
Retrain Count
The number of times the gateway was synchronized.
Mode
xDSL mode that the modem has trained under, such as ADSL2+, G.DMT, etc.
Connection type. Options are ATM , PTM and ETH .
Traffic Type
Status of the connection. Options are Up , Disabled , NoSignal , and Initializing .
Status
Link Power State
Current link power management state (e.g., L0, L2, L3).
Downstream
Upstream
and
State of the Trellis Coded Modulation. Options are On and Off .
Line Coding (Trellis)
SNR Margin (0.1 db)
The signal-to-noise ration margin (SNRM) is the maximum increase (in dB) of the
received noise power, such that the modem can still meet all of the target BERs
over all the frame bearers. [2]
The signal attenuation is defined as the difference in dB between the power
Attenuation (0.1 db)
received at the near-end and that transmitted from the far-end. [2]
Output Power (0.1
Transmit power from the gateway to the DSL loop relative to one Milliwatt (dBm).
dBm)
Attainable Rate (Kbps) The typically obtainable sync rate, i.e., the attainable net data rate that the
receive PMS-TC and PMD functions are designed to support under the following con-
ditions:
Rate (Kbps)
The current net data rate of the xDSL link. Net data rate is defined as the sum of all
frame bearer data rates over all latency paths. [2]
Downstream
Upstream
and
B (# of bytes in Mux
The nominal number of bytes from frame bearer #n per Mux Data Frame at Refer-
Data Frame)
ence Point A in the current latency path.
M (# of Mux Data
The number of Mux Data Frames per FEC Data Frame in the current latency path.
Frames in FEC Data
Frame
T (Mux Data Frames
The ratio of the number of Mux Data Frames to the number of sync bytes in the cur-
over sync bytes)
rent latency path.
R (# of check bytes in
The number of Reed Solomon redundancy bytes per codeword in the current
SmartRG Inc., an ADTRAN company. All Rights Reserved. © 2019
Reset Statistics
at the bottom of the page.
columns
Single frame bearer and single latency operation
l
Signal-to-Noise Ratio Margin (SNRM) to be equal or above the SNR Target Mar-
l
gin
BER not to exceed the highest BER configured for one (or more) latency paths
l
Latency not to exceed the highest latency configured for one (or more)
l
latency paths
Accounting for all coding gains available (e.g., trellis coding, RS FEC) with
l
latency bound
Accounting for the loop characteristics at the instant of measurement [2]
l
columns for DSL-specific fields only
17
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