Screen Abbreviations; Table 8. Screen Abbreviations - ADTRAN T200 HTU-R Installation And Maintenance Manual

Screen Abbreviations

Table 8 lists the abbreviations used in the screen examples shown in
Abbreviation Definition
ES Errored Seconds
• DSX/DS1
• HDSL
SES Severely Errored Seconds.
• DSX/DS1
• HDSL
UAS Unavailable Seconds
• DSX/DS1
• HDSL
SF Superframe Format
ESF Extended Superframe Format
B8ZS Binary 8 Zero Substitution
AMI Alternate Mark Inversion
LBO Line Build Out
BPV Bipolar Violation
• DSX/DS1
NIU T1 Network Interface Unit
S/N Serial number
15M Fifteen-Minute Period
24H Twenty-Four-Hour Period
61247026L1-5A

Table 8. Screen Abbreviations

– SF: Second in which a BPV or frame bit error occurs
– ESF: Second in which a BPV or CRC error occurs
– Second in which a CRC error occurs
– SF: Second in which 1544 BPVs or 8 frame bit errors occurs
– ESF: Second in which 1544 BPVs or 320 CRC errors occur
– Second in which 165 CRC errors occurs
– Second in which there is a loss of signal or sync
– Second in which there is a loss of signal or sync
– Second in which a bipolar violation occurs
User Interface
Figures 4 through 15.
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