What is EoV?
Ethernet over VDSL (Very high bit rate Digital Subscriber Line) or EoV technology enables the creation of high-speed links of up to 15Mbps full duplex, over standard telephone cables. The Ethernet over VDSL product line delivers standard Ethernet traffic over VDSL transport, which reaches distances of up to 1,200 meters (4,000 feet), in parallel to the standard telephony (POTS) or ISDN service carried on the same local-loop.
EoV is a two-band QAM (Quadrature Amplitude Modulation)-based VDSL physical medium used as a transport for Ethernet as the layer-2 protocol. The basic upload channel frequency is between 0.9 Mhz to 3.75 Mhz and the basic download channel frequency is between 3.75 Mhz and 8.0 Mhz. EoV transmits in the basic “power spectrum density” (PSD) of –60 dBm/Hz. The Ethernet carrier uses standard Ethernet frames, and supports the full range of Ethernet features supported in the OptiSwitch™ such as Ethernet switching, Spanning Tree and Virtual LANs (VLAN).
Who Uses EoV?
Carriers looking to deploy high-speed broadband services have benefited tremendously from EoV technology. EoV technology provides the simplicity and cost-effectiveness of Ethernet at the back-end network, with inexpensive Customer Premises Equipment (CPE). The most common deployments of EoV are in Multiple Tenant and Multiple Dwelling Units (MTU/MDU), where the existing copper wiring can simply be used to provide direct Ethernet service. EoV is also widely used in the hospitality industry, to provide business travelers with Ethernet connectivity directly in their hotel rooms without rewiring the hotel. Finally, EoV can be used as a Ethernet service solution, providing high-speed data services to small businesses, and even directly to residences.
How is EoV Deployed?
Ethernet-over-VDSL uses several components. First, the head-end, or Network Termination (NT) side is connected to an Ethernet network using the OptiSwitch™ product. Modules are available for all standard Ethernet protocols. The OptiSwitch EoV NT modules provide the head-end capability, and control the Line Termination (LT) side. The LT, or subscriber, side can either be another OptiSwitch™ with LT modules, or can be an Ethernet-over-VDSL modem, which provides a standard 10/100Mbps Ethernet port in addition to the EoV LT port.
In the case that the wiring is also delivering telephony or ISDN services at the same time, MRV provides a series of splitters, which decouple the EoV technology from the POTS or ISDN technology. The EoV modem provided by MRV also has an RJ-11 connection for a telephone.
A special model of the system delivers long-range VDSL transmission, which can reach distances of up to 2.4 Km (8,000 feet), with 4 Mbps, full duplex traffic. This solution includes a special OptiSwitch module and special Long range CPE that uses a higher PSD on an upload channel between 0.6 Mhz and 2.0 Mhz and a download channel between 2.3 Mhz and 4.8 Mhz.
EoV Links
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Technology
