Longitudinal Balance

Use this function to measure the active Longitudinal Balance on the pair. The 965DSP automatically goes off-hook to measure Longitudinal Balance.

Press the [Tab] key to go to Loss. Press the [Left Arrow] key to go to Noise. Press [Enter] to return to the dB menu. Press [Up] and [Down] to adjust the speaker volume. Use the Blue keys to send DTMF tones.

Wideband Loss

Use this function to measure the loss of a far end tone between 20k Hz and 200k Hz.

The screen displays the signal level in dBm, and the frequency of the tone in kilohertz.

Press [Enter] to return to the dB menu.

33

Page 33
Image 33
3M 965DSP-B instruction manual Longitudinal Balance, Wideband Loss