ADTRAN T200 FNID Table C. Definition of Screen Abbreviations, Abbreviation Definition

Table C. Definition of Screen Abbreviations

Abbreviation	Definition
ES	Errored seconds
	DS1 (SF)	Second in which a BPV or frame bit error occurs
	DS1 (ESF) ....	Second in which a BPV or CRC error occurs
	DSL	Second in which a CRC error occurs
SES	Severely errored seconds
	DS1 (SF)	Second in which 1554 BPVs or 8 frame bit errors occur
	DS1 (ESF) ....	Second in which 1544 BPVs or 320 CRC errors occur
	DSL	Second in which 165 CRC errors occur
UAS	Unavailable seconds
	DS1	Second in which there is a loss of signal or sync
	DSL	Second in which there is a loss of signal or sync
SF	Superframe format
ESF	Extended superframe format
B8ZS	Binary 8-zero substitution
AMI	Alternate mark inversion
LBO	Line build-out
BPV	Bipolar violation
	DS1	Second in which a bipolar violation occurs
NIU	T1 network interface unit
S/N	Serial number
15M	Fifteen-minute period
24H	Twenty-four-hour period

From the Main menu the following screens can be accessed.

1.Current System Status

2.Performance History

3.ADTRAN Information

4.Loopback Options

5.Self Test

6.Provisioning

7.Troubleshooting

Current information for the DSL and DS1 interfaces is consolidated on this screen. A key to the information provided is found in the center of the screen. Arrows indicate the key applies to both the FT1 DP and FNID.

LOSS	Pulse Attenuation Measurement
SYNC	HDSL Loop 1 Sync Status
ES 15M/24H	Errored Seconds
SES 15M/24H	Severely Errored Seconds
UAS 15M/24H	Unavailable Seconds

The Current System Status screen, illustrated in FigureÊ7, provides quick access to status information for both the FT1-DP and FNID. The Elapsed Time display indicates the period of time since the unit began collecting performance information.

For example: ES 012/264 indicates that 12 errored seconds have occurred in the current 15-minute period while a total of 264 errored seconds have occurred in the last 24 hours.

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