Fluke 990DSL - Page 69

POTS Testing and Fault Location
POTS Auto-Test
4
4-5
Table 4-1. User-Selectable Tests for the POTS Auto-Test (continued)
Test Description Settings (default in bold)
VF Noise Measures Metallic Noise
and Power Influence (P.I.)
on spare or working pairs.
Measures Dial-up Noise if
QT number entered in
Setup screen 2.
Select Y to enable the test
Select N to disable the test.
VF Loss Measures Dial-up VF
Loss on working POTS
pairs, if Milliwatt number
entered in Setup screen 2.
Select Y to enable the test
Select N to disable the test.
(N/A on spare pairs)
VF Noise Quiet
Term. #
Quiet Termination phone
number. (Setup screen 2)
Enter number to enable test
on working POTS pairs.
VF Loss Milliwatt # Milliwatt or N-Tone sweep
number. (Setup screen 2)
Enter number to enable test
on working POTS pairs.
VF Noise Test
Delay
Post-dialing delay prior to
running VF Noise test.
(Setup screen 2)
Enter number of seconds to
delay after dialing, prior to
running test.
VF Loss Test Delay Post-dialing delay prior to
running VF Loss test.
(Setup screen 2)
Enter number of seconds to
delay after dialing, prior to
running test.
Cable Type Required by Opens test Select from Cable Type list
Cable Gauge Required by Load test Select from Cable Ga. list
Cable Temperature Required by Load test Enter Cable Temperature
Measurement
Mode
Required by S&G Test Select Normal for cables
with normal levels of P.I.;
Select High AC Rejection
for cables with high P.I, or
when the sheath is
conducting high AC current
such as that caused by
unbalanced 3-phase power
loading in the vicinity.