Nokia DNT2Mi-fp - Manual (Page 37)

Maintenance
DN0445814 © Nokia Corporation 37 (60)
Issue 2-0 en Nokia Proprietary and Confidential
7.4 Checking measurements and statistics
The parameters that can be viewed through the Q1 menus Measurement (main
menu branch 7 and Statistics (main menu branch 8) are listed below.
Measurements via Q1
• Noise margin
• Rx level
• Tx level
• Line attenuation
• Line voltage (remote-powered)
Attenuation can be 0 to 41 dB.
DNT2Mi-fp statistics
Signal qualities of the selected 15-minute periods (100) and 24-hour periods (30)
and since the last reset, according to Rec. G.826, are indicated by the quality
parameters in the table below.
Monitoring a line
Tx level
Line 1 or 2: xx dBm xx = +7.5 to +14.5 dBm
Rx level
Line 1 or 2: xx dBm xx = +14.5 to -35 dBm
Noise margin
Line 1 or 2: xx dB xx = 0 to +15 dB
Noise margin
+15...1 dB, expected BER < 10 -7
0 dB, expected BER 10
-7
Attenuation
Line 1 or 2: xx dB xx = 0 to 50 dB