EXFO VDSL2 - Manual (Page 73)

Copper, VDSL2, ADSL2+, and IP Triple-Play Test Set 65
5 DMM Tests
The purpose of the digital multimeter (DMM) tests function is to detect
AC/DC voltages and currents, and measure resistance and capacitance in a
loop. These tests allow you to make basic electrical safety checks
(AC volts), check from “crossed” or coupled battery voltages, assess basic
loop continuity and quality with resistance measurements, and measure
total electrical length with capacitance.
The DMM Tests menu includes the
following tests:
³
DMM
³
In-service pair, rectified loop, and
water detection
³
Resistive balance
DMM
The DMM function allows you to perform the following tests:
³
Voltage
³
Resistance (also known as shorts meter)
³
Isolation (also known as stress/leakage)
³
Capacitance (also known as opens meter)
³
Current
³
VF Noise
³
Longitudinal Balance
³
POTS Dialer
To view DMM test tabs:
From the DMM pane use the F1, F2, or F3 key to view the various tabs. To
view any available additional tabs, use the function arrow keys on either
side of the F1 and F3 keys.