EXFO CableSHARK P3 VF/DSL Cable Qualifier - Manual (Page 186)

VF / DSL Cable Qualifier
174
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 units unique 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 SPECTRAL DETECTIVE from the pop-up menu. The following setup
screen will appear.
EDIT /
SELECT MAIN
MENU
Test Type:
Reference Imp :
Measurement Units:
Noise Filter :
E F CHG
SPECTRAL DETECTIVE 2.2 MHz
WARNING
Note: telephone cables may have dangerous A.C. or D.C.
voltages on them, therefore caution should be taken when
connecting this test set.
!
SELECT
NEXT
100 OHMS
dBm
NONE (disturber ID on)
F IGURE 9B – S PECTRAL D ETECTIVE T EST S ETUP M ENU
The Spectral Detective Test Setup menu has the following configuration options.
TEST TYPE: Options are SPECTRAL DETECTIVE 2.2 MHz and SPECTRAL DETECTIVE 6.0
MHz
REFERENCE IMP. To measure the proper noise level it is desirable to know what the cable is
typically terminated at. This provides the CableSHARK with the proper conversion
factor for voltage to power. Examples: ADSL uses 100 ohm termination, SHDSL
uses 135 ohm termination.
MEASUREMENT
UNITS Allows the user to specify the measurement units for the test. The choices are
dBm and dBr n.