IES-1248-51/51A/53 User’s Guide
138 Chapter 17 xDSL Profiles Setup
The following table describes the labels in this screen.
Table 25 Port Profile
LABEL DESCRIPTION
VC Profile Click VC Profile to open the VC Profile screen where you can configure virtual
channel profiles (see Section 17.5 on page 143).
Alarm Profile Click Alarm Profile to open the Alarm Profile screen where you can configure
limits that trigger an alarm when exceeded (see Section 17.6 on page 145)
IGMP Filter Profile Click IGMP Filter Profile to open the IGMP Filter Profile screen where you can
configure IGMP multicast filter profiles (see Section 17.8 on page 148).
Index This is the port profile index number.
Name These are the names of individual profiles. The DEFVAL profile always exists
and all of the DSL ports have it assigned to them by default. You can use up to
31 ASCII characters; spaces are not allowed.
Latency Mode This is the ADSL latency mode (Fast or Interleave) for the ports that belong to
this profile.
Down/Up Stream
Rate (kbps)
These are the maximum downstream and upstream transfer rates for the ports
that belong to this profile.
Select
Modify
Select a profile’s Select radio button and click Modify to edit the profile.
Select
Delete
Select a profile’s Select radio button and click Delete to remove the profile.
The rest of the screen is for profile configuration.
Name When editing a profile, this is the name of this profile. When adding a profile,
type a name (up to 31 characters) for the profile.
Latency Mode This field sets the ADSL latency mode for the ports that belong to this profile.
Select Fast mode to use no interleaving and have faster transmission (a “fast
channel”). This would be suitable if you have a good line where little error
correction is necessary.
Select Interleave mode to use interleave delay when transmission error
correction (Reed- Solomon) is necessary due to a less than ideal telephone line.
See Section 16.4 on page 120 for more on interleave delay.
Up Stream The following parameters relate to upstream transmissions.
Max Rate Type a maximum upstream transfer rate (64 to 4096 Kbps) for this profile.
Configure the maximum upstream transfer rate to be less than the maximum
downstream transfer rate.
Min Rate Type the minimum upstream transfer rate (32 to 4096 Kbps) for this port.
Configure the minimum upstream transfer rate to be less than the maximum
upstream transfer rate.
Interleave Delay Configure this field when you set the Latency Mode field to Interleave. Type the
number of milliseconds (1-255) of interleave delay to use for upstream transfers.
It is recommended that you configure the same latency delay for both upstream
and downstream.
Max SNR Type the maximum upstream signal to noise margin (0-31 dB).
Min SNR Type the minimum upstream signal to noise margin (0-31 dB). Configure the
minimum upstream signal to noise margin to be less than or equal to the
maximum upstream signal to noise margin.
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