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3. Configuration Options
3-26 December 2002 9000-A2-GB31-00
SDSL Network Interface
The FrameSaver DSL 9783 CSU/DSU and Router have an SDSL network
interface.
Table 3-11. SDSL Network Physical Interface Options
Line Rate Mode
Possible Settings: Hunt, AutoRate, Fixed
Default Setting: AutoRate
Specifies the mode to be used for rate selection.
Hunt – The unit attempts to train at rate specified by DSL Line Rate. If that fails, the unit
attempts to train at the next higher rate, and, if unsuccessful, cycles through all the rates
until training is successful or the unit is reset.
AutoRate – The unit automatically detects the line rate from the network interface.
Fixed – The unit uses the line rate specified by DSL Line Rate.
DSL Line Rate (Kbps)
Possible Settings:
– If DSLAM Type is set to Paradyne, or if DSLAM Type is set to Nokia and Line Rate
Mode is set to Fixed: 144, 192, 208, 256, 272, 384, 400, 512, 528, 768, 784,
1024, 1152, 1168, 1536, 1552, 2320
– If DSLAM Type is set to Alcatel (NewBridge): 208, 400, 784, 1168, 1552, 2320
– If DSLAM Type is set to Nokia and Line Rate Mode is set to Hunt: 192, 384, 768,
1152, 1536
– If DSLAM Type is set to PairGain: 144, 192, 208, 256, 272, 384, 400, 512, 528,
768, 784, 1024, 1152, 1168, 1536, 1552, 2320
Default Setting:
– If DSLAM Type is set to Alcatel (NewBridge) and Line Rate Mode is set to Hunt: 208
– If DSLAM Type is set to Nokia and Line Rate Mode is set to Hunt: 384
– If DSLAM Type is set to PairGain and Line Rate Mode is set to Fixed: 784
– (If DSLAM Type is set to Paradyne, Line Rate Mode is set to AutoRate and DSL
Line Rate does not appear)
Determines the rate on the DSL network interface (if Line Rate Mode is Fixed), or the rate
the device will first use to attempt to train (if Line Rate Mode is Hunt).
Display Conditions – DSL Line Rate does not appear if DSL Line Rate Mode is set to
AutoRate.
144 – 2320 – The DSL line rate is set to the specified rate in Kbps.
SNR Margin Alarm Threshold (dB)
Possible Settings: –5, –4, –3, –2, –1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Default Setting: 3
Specifies the level in decibels at which a Signal to Noise Ratio (SNR) margin alarm
condition is declared.
–5 – 10 – Specifies the threshold level in dB.