Fluke 990DSL, Руководство пользователя

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POTS Testing and Fault Location
Dial-Up Test Group
4
4-57
Running an On-Hook Caller ID Test
The On-Hook Caller ID test enables the tester to receive a call on the test line
from another line, then capture and display Caller ID calling party information.
1. Select the On-Hook Caller ID function and then press
L
.
The tester waits indefinitely (in an on-hook condition) for an incoming
phone call, which must be placed from another POTS line to the POTS
line under test.
If the test line is equipped with the Caller ID feature, the tester detects the
incoming Caller ID information (sent by the C.O. switch) after the first
ringing interval. It then displays the received Phone number along with the
associated Name, Date, and Message (if included).
2. Press
A
(
Timing Details
) to view the following CID signal information:
•
Ringing Duration
•
Ringing to CD (Carrier Detection) Delay
•
CD to Seizure Delay
•
Seizure Duration
•
Seizure Bytes
•
Mark (frequency) Duration
•
Data Duration
•
Data Bytes
3. Press
B
(
Raw Data)
to view the raw hexadecimal CID data digits.
If the test line was not equipped with the Caller ID feature, the tester continues
to wait until you press
M
. If the CID data was garbled, the tester displays an
error message after the first ringing interval.