Auto Test>Vacant Wideband
Use Vacant Wideband to perform an automatic sequence
of tests on Vacant Wideband circuits. The tests include: DC
Voltage, AC Voltage, DC Resistance, Opens, % Capacitance
Balance, Load Coil, Voice Band Loss, Voice Band Noise, Power
Influence, Longitudinal Balance, Slope, Resistance Balance
(loop) and Resistance Balance (% diff).
Note: You must use a 3M FED to use the Vacant WideBand
function.
Insertion Loss Frequencies and Sweep Frequencies by Service Type
Insertion
Loss
Sweeps
Single
Frequency*
Sweep Frequencies
Pots 1004 Hz 404, 804, 1004, 1204, 1404, 1604, 1804, 2004,
2804, 3004 (Hz)
56k 28 kHz 20, 28, 32, 40, 48, 82 (kHz)
64k 32 kHz 20, 28, 32, 40, 48, 82 (kHz)
ISDN 40 kHz 20, 28, 32, 40, 48, 60, 70, 82 (kHz)
HDSL 196 kHz 20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
T1 772 kHz 200, 400, 500, 700, 772, 1024 (kHz)
E1 1024 kHz 200, 400, 500, 700, 772, 1024 (kHz)
ADSL 138 kHz 20, 30, 50, 69, 90, 110, 138, 276, 400, 600,
800, 1000, 1100 (kHz)
H2/4ACC 196 kHz 50, 80, 130, 196, 250, 300, 350 (kHz)
H4RACC** N/A 20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
H4NACC*** N/A 20, 30, 50, 70, 90, 110, 130, 196, 400 (kHz)
* Pass/Fail provided for Single Frqeuency when measuring just Single Frequency or in Sweep Mode.
** Pass/Fail provided for 50 kHz, 90 kHz and 130 kHz
*** Pass/Fail provided for 50 kHz, 90 kHz, 130 kHz and 196 kHz