23-Tone Test; 23-Tone Results Display; 4-Wire Signaling Mode Selection - Textron Greenlee Communications DataScout 10G User Manual

Poor return loss is indicated by a single digit reading, the higher the number the better
the return loss and impedance match.
To turn off Return Loss tap the TxComplex button and select OFF.

23-Tone Test

The recommended transmit level of 23-tone sequence is -8dBm which prevents tone
clipping on PCM facilities.
Press the TxComplex button and select 23-tone to activate transmission. The
DataScout 10G will transmit a complex 23-tone waveform at -10dBm on the 4-Wire TX
(output) port of the test set. To turn off the 23-tone generator simply the TxComplex
button and then Off.

23-Tone Results Display

To view 23-tone results tap on the View 23-tone button. Use the Dialog buttons to view
the desired results. Receive level is displayed in dBm from 0dB to -50dBm.
The following results are displayed:
Envelope Delay Distortion (EDD) – is the difference in the transit delay
►
transmitted over a transmission facility) is displayed in microseconds (uS ) 0 to
12,000uS.
Inter-modulation Distortion (IMD) – is the result of two signals interacting in a
►
non linear device to produce unwanted signals and displays 2
dB.
Signal to Total Distortion (S/TD) – is the ratio of power of multiple tone signal
►
to spurious signals and is displayed in dB.
Signal to Noise Ratio (SNR) – is the ratio of power of multi-tone to background
►
noise and is displayed in dB.

4-Wire Signaling Mode Selection

Users Manual
DataScout 10G & 10Gx
nd rd
and 3 IMD in
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