User guide

Controlling and Provisioning Network Devices Port Management (non-iMAP Devices)
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AlliedView NMS Administration Guide
After a file is selected the test result viewer is displayed. The viewer window also has a View Exported Test button so that
additional tests can be displayed and compared. A maximum of eight (8) tests can viewed simultaneously from a single client,
in addition to the port details window. Refer to the following figure.
FIGURE 5-212 View Graph Results
5.7.3.9 Graphed Parameters
• Subcarriers - The same values are available for both upstream and downstream directions. Depending on the type of
port and actual mode of operation different subcarrier counts are used. The following table describes the possible values
• Bit Loading - Bits allocated per sub channel. Range is 0 to 15.
• Gain - Range is 0 - 4093/512.
• Quiet Line Noise - Noise on quite line. Range is -150 to -23 db/MHz.
• Signal/Noise Margin - The signal-to-noise ratio margin per band is the maximum increase in dB of the noise power
received at the xTU-R, such that the BER requirements are met for all bearer channels. The range is from -64 dB to +63
dB with 0.1 dB steps.
• Hlog(f) - The log of the characteristic function
TABLE 5-58 Values for Subcarriers
Card Types Actual Standard Actual Annex Upstream Carriers Downstream Carriers
VDSL24A, VDSL24B 512 512
ADSL24A/B, ADSL24AE
ADSL48A, ADSL48B,
ADSL2, ADSL2M ANNEXB,
ANNEXM
64 256
others 32 256
ADSL2+
ADSL2+M
ANNEXB,
ANNEXM
64 512
32 512