Nokia DNT2Mi sp/mp user manual Default values, Noise margin, Bit error ratio

		Data Network Terminal Single-port and Multiport Operating Instructions
Table 3.	Monitoring a line (Continued)
Line voltage: xx V			Alternatives: 55 to 155 V + no remote power
Signal quality			Signal quality monitored during 1 period of 15 minutes to
Last 15 min			max. 4 (with front panel menus) or 100 (with Q1 menus)
			successive periods of 15 minutes.
			Front panel menus give you absolute values and Q1
			menus both absolute and relative values.
Signal quality			Signal quality monitored during 1 period of 24 hours to
Last 24 hours			max. 4 (with front panel menus) or 30 (with Q1 menus)
			successive periods of 24 hours.
			Front panel menus give you absolute values and Q1
			menus both absolute and relative values.
Table 4.	Explanation of noise margin
Noise margin			Bit error ratio
+15 dB
+1 dB			Expected BER < 10-7
0 dB			Expected BER 10-7

6.9Default values

The following default values can be recalled, for example from the Q1 menu path

6,6:

Table 5.	Global parameters
Timing source		Line
Front panel operation rights		Testing and configuration allowed
Q1 address *)		2
Q1 management path		Q1 via line: on
		LM interface: on
Control and test loop limit		10 minutes
Q1 password for settings		No protection, password: DNT2Mi
Equipment ID		DNT2Mi
Use of front panel		Full menu

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