Send tone (tx) – EXFO VDSL2 User Manual
Page 129
Wideband Tests
Copper, VDSL2, ADSL2+ and IP Triple-Play Test Set
121
Send Tone (TX)
Send Tone (TX)
The wideband Send Tone (TX) test
allows you to configure and transmit a
tone to a downstream device in the
loop.
Each parameter and button on the
pane is described below.
³
Frequency (kHz) is the frequency
of the transmitting tone. Specify a
value between 20 and 30000.
³
Level (dBm) is the tone level. Specify a value between -10 and 10.
³
Termination Impedance defines the impedance of the dummy load
connected to the line. Select either 100 or 135 Ohms.
³
Apply is used to confirm any changes to parameter values.
To start/stop test:
1. Press the up/down arrow keys to highlight the desired test parameter.
2. Press
to select the value.
3. Press the left arrow key to erase the existing value, and then use the
alphanumeric keypad to enter a value. To cancel the entry, press
.
4. Press
to accept the value.
5. Change other parameter values as required.
6. Press the right arrow key, then use the up/down arrow key to highlight
the Apply button. Press
to confirm any changes.
7. Press
to start/stop the test.
Test results are displayed on the screen as they are completed.