ADC Modem MM701G, Руководство пользователя

Страница: 58 / 108

Managing DSL
52 MM701G User Manual
Quick Configuration
From the SHDSL Standard page, do one of the following:
• Select G.SHDSL - Annex A
• Select G.SHDSL - Annex B
Save your changes by selecting Save Current Configuration from the Main Menu as described in
“Saving the Current Configuration” on page 60 .
Advanced Configuration
From the G.SHDSL Advance Configuration Setting page, type the number of the G.shdsl field to
configure, then reference the table below for assistance in changing and selecting the parameter
value.
G.shdsl Advance Configuration Setting
1. ExecMode CPE 12. MinBaseRate 1
2. Standard G.shdsl-AnnexB 13. MaxBaseRate 36
3. StartupMargin 2dB 14. MinSubRate 0
4. ClockOffset (ppm) 0 15. MaxSubRate 1
5. PowerBackoff Enable 16. WirePairMode SinglePair
6. UpFrameSync 13727 17. AsymmetricPSD SymmetricPSD
7. UpStuffBits 15 18. BitRateMode AdaptiveRate
8. DownFrameSync 13727 19. TestBitRate 2320K
9. DownStuffBits 15 20. SNRMarginLimit (dB) 4
10. EncoderCoeffA 366 21. Apply
11. EncoderCoeffB 817
Enter Parameter to edit (Return to exit) ->
SHDSL Parameter Description Values
ExecMode Operational mode of the modem. If you are implementing
a back-to-back configuration, configure one modem in
CO mode and the other in CPE mode. Otherwise, select
CPE. CPE, CO
Standard Select Annex A or Annex B (Default: Annex A). Annex A, Annex B
StartupMargin Currently only 0 dB is supported. 2 to 15
ClockOffset Used for a low frequency wander and jitter between
network and DSL system clock. Only set on the CO side.
(Default: 0) -100 to 100 ppm
PowerBackoff Select Enable to activate Power Backoff or Disable to
deactivate Power Backoff. (Default: Enable) Enable, Disable