Glossary of Terms

 

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The telecommunications and fiber industries are full of terms and acronyms. Our glossary of terms attempts to capture some of them.

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E

Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA): An approximate measure of a company's operating cash flow based on data from the company's income statement. Calculated by looking at earnings, which are calculated by subtracting opex and SG&A from net revenues, before the deduction of interest expenses, taxes, depreciation and amortization. This earnings measure is of particular interest in cases where companies have large amounts of fixed assets which are subject to large depreciation.

EBITDA: See Earnings Before Interest, Taxes, Depreciation, and Amortization.

EDD: See Ethernet demarcation device.

EPON: See Ethernet Passive Optical Network.

ESRI: ESRI (www.esri.com) is the global leader in geographic information systems.

Ethernet Demarcation Device: he transceiver device that terminates the optical network at the customer premises. OHIvey prefers the term access portal or AP.

Ethernet Passive Optical Network (EPON): One of the family of PON offering downstream capacities of up to 1.25 Gbps and upstream capacities of up to 1.25 Gbps, shared among a limited number of end users.

EV-DO: See Evolution-Data Optimized.

Evolution-Data Optimized (EV-DO): A 3G wireless radio broadband data standard that enables faster speeds than are available in existing CDMA networks or other services, such as GPRS or EDGE.


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