10Base-T/100Base-TX/E3 Converter
Operating Manual
IOA170-1A V
January 2006
A list of used abbreviations
NUAL Non-urgent
alarm
UAL Urgent
alarm
ES
Errored Seconds
ES15
ES 15-minute errored second counter
ES24
ES 24-hour errored second counter
HDLC
High Level Data Link Control
IEEE
Institute of Electrical and Electronics Engineers
ITU-T
International Telecommunication Union – Telecommunication
Standardization Sector
LOS
Loss Of Signal
LOL
Loss Of Lock – loss of the recovered clock’s frequency stability
MDI
Medium Dependent Interface
MII
Medium Independent Interface
SES
Severely Errored Seconds
SES15
SES – severely errored seconds during a 15-minute period
SES24
SES – severely errored seconds during a 24-hour period
