DS1

Digital Signal, Level 1

DSL

Digital Subscriber Line

DSR

Data Set Ready

DSX

Digital Signal Cross-connect

DTE

Data Terminal Equipment

DTR

Data Terminal Ready

DX

Duplex Signaling

E1

Digital 2.048 Mbps line rate, widely used in countries outside the U.S. and Canada.

EFCI

Explicit Forward Congestion Indicator

ELAN

Emulated Local Area Network

EPROM

Electronic Programmable Read-Only Memory, stores firmware on plug-in modules of the system.

ES

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Glossary

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Zhone Technologies IMACS-200 manual DS1, Dsl, Dsr, Dsx, Dte, Dtr, Efci, Elan, Eprom