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MSAP2000 AAMS User's Guide
The following table describes the fields in this screen.
Table 22
LABEL
Line Performance
counters. Line Data Click Line Data to display an ADSL port's line bit allocation.
Port
Refresh
Port Name
The rate fields display the transmission rates. "Line Down" indicates that the ADSL port is
not connected to a subscriber.
Down/up Stream
Rate
Down/up Stream
Noise Margin
Down/up Stream
Attenuation
Down/up Stream
Attainable Rate
Service Mode
Trellis Encoding
Down Stream
Interleave Delay
Up Stream
Interleave Delay
Down Stream
Output Power
Info
a. At the time of writing, the MSAP2000 AAMS always uses Trellis coding.
Line Rate Information
DESCRIPTION
Click Line Performance to display an ADSL port's line performance
Use this drop-down list box to select a port for which you wish to view information.
Click Refresh to display updated information.
This field displays the name of the ADSL port.
These are the rates (in Kbps) at which the port has been sending and
receiving data.
These are the DSL line's downstream and upstream noise margins.
Measured in decibels (dB).
These are the reductions in amplitude of the downstream and upstream DSL
signals. Measured in decibels (dB).
These are the highest theoretically possible transfer rates (in Kbps) at which
the port could send and receive data.
This field displays the ADSL standard that the port is using: G.dmt, G.lite
or ANSI T1.413 issue 2, ADSL2, ADSL2+, ETSI
This field displays whether Trellis encoding is turned on or off. Trellis
encoding helps to reduce the noise in ADSL transmissions. Trellis may
reduce throughput but it makes the connection more stable.
This field displays the number of milliseconds of interleave delay for
downstream transmissions.
This field displays the number of milliseconds of interleave delay for
upstream transmissions.
This field displays the amount of power that this port is using to transmit to the
subscriber's ADSL modem or router. The total output power of the transceiver
varies with the length and line quality. The farther away the subscriber's ADSL
modem or router is or the more interference there is on the line, the more power
is needed.
The Info Atur fields show data acquired from the ATUR (ADSL Termination
Unit – Remote), in this case the subscriber's ADSL modem or router, during
negotiation/ provisioning message interchanges. This information can help in
identifying the subscriber's ADSL modem or router.
The Info Atuc fields show data acquired from the ATUC (ADSL Termination
Unit – Central), in this case AAM, during negotiation/provisioning message
interchanges. The vendor ID, vendor version number and product serial number
are obtained from vendor ID fields (see ITU-T G.994.1) or R-MSGS1 (see
79
a
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