Chapter 7
DS0 VF Test Commands
Description of VF test commands
CT-650 Command-Line Reference Guide
Release 9.4
71
TLStatus
Displays a screen showing the current status of a
Listen
or
Talk/
Listen
session.
Syntax
TLStatus <
This syntax is available to all users.
TLStatus <
This syntax is available to supervisors.
Remarks
– Talk/Listen results (
Port State
and
Last Act/Sta
) are reset
only on a new Listen.
– This command is available after issuing the
Listen
command.
VF_DI_Measure
Executes an intrusive drop and insert test on the chosen channel.
Syntax
VF_DI_Measure <
> <
>
<
>
Available measure
tests
Using the
VF_DI_Measure
command, you can test a variety of char-
acteristics of a VF signal.
lists the measurements you can
perform on VF signals. Use the syntax in the Syntax column of
for the
vf_test_type
parameter. For example, to fully specify an
echo return loss test using a -13 dB signal for a continuous test period,
type the following command:
VF_DI_Measure 10 Echo_Return -13 Continuous
Table 4
VF measure tests
Test
Syntax
Description
3 kHz flat
noise mea-
surement
3k_Flat
Investigates the presence of idle channel noise,
such as crosstalk, white noise, and impulse
noise. The results appear in dBrn, and range
from 20 dBrn to 70 dBrn. A quiet termination at
the circuit’s originating end is required.
Summary of Contents for CT-650
Page 1: ...CT 650 Wideband Test Unit Release 9 4 Command Line Reference Guide ...
Page 2: ......
Page 3: ...CT 650 Wideband Test Unit Release 9 4 Command Line Reference Guide ...
Page 4: ......
Page 22: ...Contents xxii CT 650 Command Line Reference Guide Release 9 4 ...
Page 240: ...Appendix D Customer Services and Support Training options 214 CT 650 User s Guide Release 9 3 ...
Page 247: ......