Modem/DSU Commands

This results form contains the following fields:

Bit Error Rate

Displays the ratio of the number of bits in error to the number of bits received.

Receive Level

Displays the measured receive level. A normal received signal level is ±16 dB, ±4 dB.

Signal/Noise

Displays the measured signal-to-noise ratio. An acceptable signal to noise ratio is 24 dB or greater.

Retrains

This field is reserved for future use.

Blown Startups

This field is reserved for future use.

A sample Circuit Quality results form for a COMSPHERE 3900 Series modem is shown in Figure 2-22.

Figure 2-22. Circuit Quality Results Form for 3900 Series Modems

6800-A2-GB31-20

January 1997

2-85

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Image 108
Paradyne 6800 manual Bit Error Rate, Retrains, Blown Startups