Fluke 990DSL, Руководство пользователя

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990DSL
Users Guide
4-56
Running a VF Longitudinal Balance Test
After you select the
VF Long. Balance
function and either dial (either
automatically or manually) a C.O. Quiet Termination phone number as
described earlier, the tester waits for a fixed post-dialing interval, then
automatically measures the VF Longitudinal Balance of the line.
After the test is completed, the tester displays a screen similar that shown in
Figure 4-28 (VF Longitudinal Balance Results Screen).
You can now press
A
(
Contin. VF Long. Bal.
) to monitor balance in real-time.
To drop the switch connection and hang up, press
M
from the VF Long.
Balance results screen, and the
Select Dialing Mode
screen is again displayed.
Running a Number ANI Test
The Number ANI (Automatic Number Identification) test allows you to
capture and either display, or announce via speaker, the telephone number of
the test line.
After you select the Number ANI function and dial (either automatically or
manually) a C.O. ANAC (Automatic Number Announcement Circuit) phone
number (as described earlier), the tester begins monitoring the line for ANAC
DTMF response digits.
Any valid digits received within 20 seconds from the completion of dialing are
displayed by the tester and correspond to the telephone number of the line
under test.
If the ANAC device is a voice-response-only unit, the tester’s internal speaker
is connected to allow you to hear the announced number.
The CopperPro tester is compatible with Voice-only, DTMF-only, and Voice /
DTMF combination ANAC devices.
The switch connection is automatically dropped after a DTMF ANI number
has been received, but
not after the number announcement of a Voice-only
ANAC device type. In this case, you must manually hang up by pressing
M
.