
SmartRG Inc., an ADTRAN company. All Rights Reserved. © 2019 17
3. To reset the counters, click Reset Statistics at the bottom of the page.
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.
Traffic Type Connection type. Options are ATM,PTM and ETH.
Status Status of the connection. Options are Up,Disabled,NoSignal, and Initializing.
Link Power State Current link power management state (e.g., L0, L2, L3).
Downstream and Upstream columns
Line Coding (Trellis) State of the Trellis Coded Modulation. Options are On and Off.
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]
Attenuation (0.1 db) The signal attenuation is defined as the difference in dB between the power
received at the near-end and that transmitted from the far-end. [2]
Output Power (0.1
dBm)
Transmit power from the gateway to the DSL loop relative to one Milliwatt (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:
lSingle frame bearer and single latency operation
lSignal-to-Noise Ratio Margin (SNRM) to be equal or above the SNR Target Mar-
gin
lBER not to exceed the highest BER configured for one (or more) latency paths
lLatency not to exceed the highest latency configured for one (or more)
latency paths
lAccounting for all coding gains available (e.g., trellis coding, RS FEC) with
latency bound
lAccounting for the loop characteristics at the instant of measurement [2]
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 and Upstream columns for DSL-specific fields only
B (# of bytes in Mux
Data Frame)
The nominal number of bytes from frame bearer #n per Mux Data Frame at Refer-
ence Point A in the current latency path.
M (# of Mux Data
Frames in FEC Data
Frame
The number of Mux Data Frames per FEC Data Frame in the current latency path.
T (Mux Data Frames
over sync bytes)
The ratio of the number of Mux Data Frames to the number of sync bytes in the cur-
rent latency path.
R (# of check bytes in The number of Reed Solomon redundancy bytes per codeword in the current