EXFO CableSHARK P3 VF/DSL Cable Qualifier - Manual (Page 197)

CableSHARK P3 User Guide
185
Section 11 SHDSL Data Rate Prediction
The SHDSL test is unique in that it is independent of any modem or line coding being carried on the line.
This makes the EXFO CableSHARK ideally suited for use in qualifying any twisted copper pair lines in the
local loop to carry xDSL technologies.
This test is similar to our Patented End-to-End ADSL DMT test and Patent Pending Single-End DMT test.
The G.SHDSL Data Rate Prediction test uses the CableSHARK’s Single-End Frequency Response and
PSD test to determine the probable achievable SHDSL data rate. Data rates will be reported from 192 kbps
to 2312 kbps.
This option can be ordered from EXFO. A special alphanumeric software key will be sent to the purchaser
based upon each CableSHARK’s unique serial number. To determine the options currently installed in the
CableSHARK or to view the serial number, go to SYSTEM SETUP and select the OPTIONS function key
(see Section 6.4). Once the key is properly entered, the user can exit to the MAIN MENU, select CABLE
TESTS, and then select SHDSL from the pop-up menu. The following setup screen will appear.
EDIT /
SELECT MAIN
MENU
SHDSL Evaluation:
SHDSL Noise Margin dB:
Max. Cap. Imbalance (%):
Cable Type:
VOP:
VOP (m/us):
E CHG
ITU-T Annex A
WARNING
For Single End Test pleaseensure that the cable to be
tested is not terminated at the far end.
Note: telephone cables may have dangerous A.C. or D.C.
voltages on them, therefore caution should be taken when
connecting this test set.
!
AUTO
10.0
AUTO
0.660
198
SELECT
NEXT
F
F IGURE 11A – SHDSL T EST S ETUP M ENU
The SHDSL Test Setup menu has the following configuration options.