ZyXEL Communications IES-1248-71, Руководство пользователя

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Chapter 41 Diagnostic
IES-1248-71/73 User’s Guide
268
41.3 LDM Test Parameters
The following table lists the line diagnostics test parameters that display, see the ITU-T’s
G.992.3 for more information.
THERMO OVER
TEMPERATURE: dev:<id>
threshold:<threshold>
(degree C)
value:<temp>(degree
C)! WARN
The temperature was too high at one of the temperature
sensors.
<id> -
0: sensor near the ADSL chipset
1: sensor near the CPU
2: thermal sensor chip itself
<threshold> - threshold temperature
<temp> - temperature when the entry was logged
THERMO OVER
TEMPERATURE released:
dev:<id>
threshold:<threshold>
(degree C)
value:<temp>(degree
C)! INFO
The temperature at one of the temperature sensors has come
back to normal.
<id>
0: sensor near the ADSL chipset
1: sensor near the CPU
2: thermal sensor chip itself
<threshold> - threshold temperature
<temp> - temperature when the entry was logged
THERMO OVER VOLTAGE:
nominal:<nominal>(mV)
value:<voltage> mV)! WARN
The voltage went outside of the accepted operating range.
<nominal> - nominal voltage of the DC power
<voltage> - voltage of the DC power when logged
THERMO OVER VOLTAGE
released:
nominal:<nominal>(mV)
value:<voltage> (mV)! INFO
The voltage is back inside the accepted operating range.
<nominal> - nominal voltage of the DC power
<voltage> - voltage of the DC power when logged
Table 87 Log Messages (continued)
LOG MESSAGE TYPE DESCRIPTION
Table 88 LDM Test Parameters
LABEL DESCRIPTION
number_of_
subcarries Discrete Multi-Tone (DMT) modulation divides up a line’s bandwidth into sub-
carriers (sub-channels) of 4.3125 KHz each.
The first number is the total number of DMT sub-carriers the ADSL connection
is using. The second number indicates how many upstream DMT sub-carriers
the ADSL connection is using.
hlinScale:
The channel characteristics function is represented in linear format by a scale
factor and a complex number. These are the maximum upstream and
downstream scale factors used in producing the channel characteristics
function.
latn:
This is the upstream and downstream Line Attenuation (in .1 dB).
satn: This is the upstream and downstream Signal Attenuation (in .1 dB).
snrm:
This is the upstream and downstream Signal-to-Noise Ratio Margin (in .1 dB). A
DMT sub-carrier’s SNR is the ratio between the received signal power and the
received noise power. The signal-to-noise ratio margin is the maximum that the
received noise power could increase with the IES-1248 still being able to meet
its transmission targets.
attndr:
This is the upstream and downstream Attainable Net Data Rate (in bit/s).