The Definitive Guide on Ethernet Extenders
What are Ethernet Extenders? - Ethernet Repeater / CAT5 Extender / Ethernet Bridge / Network Bridge / LAN Extender
Ethernet Extension devices were first pioneered by Enable-IT, Inc. (Ethernet Extension Experts) in 1997 and employ both powered and un-powered use of transmission technologies for use over CAT-2 untwisted copper wire up to Cat-6 UTP, telephone wire, coax, alarm circuit,
Dry pair or Wet Pair cabling. Ethernet extenders (Ethernet Repeater) are LAN modules that can be used on almost any wiring to transparently drive Ethernet communications beyond the IEEE 802.3 specifications for distance limitation of 328 feet or 100 meters.
Ethernet extenders drive longer range, high-speed data communication between geographically separated LANs or LAN devices and create very cost effective bridged-Ethernet connections. Ethernet Extenders can be used for Point-to-Point (Backbone) runs or Point-to-Multipoint (Ethernet DSLAM - Digital subscriber line access Mux) and are typically deployed in Commercial, Residential, Industrial and Hospitality High Speed Internet Access environments. Ethernet Extenders can be referred to as Network extenders, LAN extenders, Ethernet repeater, CAT5 extenders, Ethernet Bridge, Network Bridge and Ethernet cable extenders and use a variety of transmission technologies over physical media such as copper or fiber. Extenders that use copper wiring operate on 1 or 2 pair unconditioned wiring (POTS) up to category rated twisted pair (CAT3...CAT6).
Some technologies commonly used in Ethernet Extension are: VDSL (Very high data rate DSL) is an xDSL technology providing data and voice transmission up to a theoretical limit of 52 Mbit/s downstream and 12 Mbit/s upstream over a single twisted pair of wires. Currently, the standard VDSL uses up to 4 different frequency bands, two for upstream (from the client to the telco) and two for downstream. The standard modulation technique is either QAM (Quadrature amplitude modulation) or DMT (Discrete multitone modulation) which are not compatible, but have similar performance. The current mostly used technology is DMT. The available bit rates range from about 26 Mbit/s symmetric for a loop of about 1500 m, up to 100 Mbit/s symmetric for a few hundred meters. These fast speeds mean that VDSL is capable of supporting new high bandwidth applications such as HDTV, as well as telephone services (Voice over IP) and general Internet access, over a single connection. A new VDSL standard is now available, named VDSL2 that delivers data and voice transmission at theoretical maximum of 250 Mbit/s full duplex.
Why use Ethernet Extenders?
Ethernet Extenders eliminate the need for installing expensive 802.3 repeaters (Ethernet Repeater) , twisted pair (CAT5/CAT6) cabling, or fiber and associated fiber transceivers. Ethernet Extenders provide the most cost
effective solutions for any LAN extension project, including Wireless Access Point installation, POE (Power over Ethernet), IP Security Camera and POS (Point of Sale) applications.
Ethernet Extenders create effective seamless LAN connections across disparate LANs in office parks, across streets, around college campuses, joining remote buildings or within large enterprise businesses. Data communication in extreme environments such as diving bells, mining shafts, outdoor entertainment venues, movie theaters, Cruise ships, remote island neighbors, Antarctic remote monitoring stations, Marinas, International Space Station and Military troops in the field have all benefited from the use of Ethernet Extender Kits.
What to look for in buying an Ethernet Extender Kit !
When researching and shopping for an Ethernet Extender, there are several key factors you should always keep in mind and feel comfortable with before committing to buy. These key factors will save you lots of time, grief and money not to mention any lost productivity and downtime later on.
||- Full wire speed does not have to cost a fortune and cheap gear can cost you in downtime and support issues - Beware!|
Cheap Chinese made products often have design flaws, typically have low throughput with unsatisfactory performance and have a high failure rate.
||- Throughput should be one of your key requirements for Full LAN speed - don't settle for low bandwidth!|
Make sure to understand and inquire the true throughput for the wire type you plan to use. Many low cost products fail to perform at satisfactory
||- Ease of Installation should be Plug and Go, country specific power adapters, no configuration setup or programming|
All Ethernet Extenders should be plug and play with no parameters to adjust. Be aware of having to do any setup or programming as this is an
indication of inherent latency delays built into the communications. Make sure you can get your country specific power adapter otherwise you will be
searching for compatible ones and you could void your warranty if you goof and apply the wrong power.
||- Research community user opinions and reviews|
Ask for references that match your industry. It is not surprising that the cheap Chinese clone units on the market have a high failure rate.
||- Look for responsive, informative, and creative solutions|
Look for globally available and timely support to assist you when you need Pre or Post sales support is key. A professional company will have a
support portal where you can research FAQ lists, product manuals and application guides. Thier RMA department should have a web-based
trouble ticket system and details reports to protect your investments.
||- Find a company that will listen to your needs and create new products or solutions to meet or exceed your needs.|
Only one manufacturer has consistently created new products to meet custom needs of its customers. OEM board level solutions all the way
to integrating features into standard product offerings.
||- Industry standard is 90 days. Look for a minimum of 2 to 3 year coverage!|
Industry standard warranty is approx 90 days. Any product worth looking at should at least be a one (1) year warranty. Ethernet Extenders are highly
susceptible to lightning because of installation wiring so we recommend to look into an extended warranty.
||- Be smart, get a money back satisfaction guarantee!|
Only one manufacturer in the industry believes enough in their equipment and offers a money back guarantee, so if this is important to your
evaluation or purchase it is definitely the extra benefit to have.