Extend your LAN across the parking lot or down the road.  The Ethernet Extender bridges two LAN locations up to 1.4 KM apart using standard old telephone or RS-232 wiring.  Depending upon the characteristics of the wire and its length, the link speed may be as high as 100 Mbps.

Ethernet Extender - Extend Ethernet Networks Over Copper Wire 

Picture of Ethernet-Extender

  • Minimal configuration network extender, set one for master(CO) and one for slave(CPE)
  • Network range extender transparent to all network protocols
  • Protocol independent
  • Uses one or two phone wire pair for an ethernet cable extension
  • 10/100BaseT Auto-Negotiation, auto-MDI-MDIX
  • Span distances up to 1400 meters
  • The best ethernet network extension with a simple 4 position DIP switch configuration
  • Available with optional   DIN rail mount
  • Powered by 5VDC from a 120 to 240 VAC power supply
  • LED indicators for VDSL , ethernet, power
  •  Industrial metal case, 0C to 50C temperature range


Lan Connection
Data Port


Download the User Manual

How To Order



The  Ethernet-Extender is a wired network range extender that extends 10/100 baseTx ethenet circuits up to 1,400 meters. The Ethernet-Extender uses twisted-pair telephones wires (AWG24 or better) up to 1.4km. Speeds are automatically maximized by the unit upon power up may be as high as 100 Mbps.  

Now you can utilize older telco wiring as an ethernet extension cable or ethernet cord extender to extend your ethernet LAN throughout the facility.  

The Ethernet-Extender is used in pairs (and sold in pairs).  The only configuration is to set a four position DIP switch, indicating that one unit is the remote and one is the local, and the profile to use. That's all there is to it.  

Power input is 5VDC supplied by the included 120-240 VAC power supply.  Other power supply options are available.



DIP Switch & Functionally


LED Indicators (6)


Performance (Downstream / Upstream)


Switch Specification

Network Cables

Standard Conformance

Regulation Compliance Standards Compliance


These are used to extend 10/100BaseT ethernet LANs using existing copper wire pair. While it won't work modernizing every old installation of telephone wire, it's amazing how many installations work well with telephone cables that has been installed for years.


Download a pdf version of the manual from here.

Installation is quite simple. Download a quick start guide here.

How to Order

The standard product is shipped in pairs for a single LAN extension  installation.  If you need a spare, please contact us..

Need it fast?  Buy on-line or call toll free 800-432-2638!

Item Number Description Price Buy Now!
Ethernet-Extender Ethernet Extender via Copper wire (12 VDC  with supplied 120 VAC power supply)
 (One pair of units for a single link)
$695 Qty:
9902090 Optional DIN rail mounting clips $ 5 Qty:

Data Comm for Business Inc.
2949 County Road 1000 E
Dewey, Il 61840
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Toll Free: 800-4-DCB-NET
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Web: www.dcbnet.com
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