Extend your LAN across the parking lot or down the road.  The Ethernet Extender bridges two LAN locations up to a mile apart using standard old telephone or RS-232 wiring.  Depending upon the characteristics of the wire and its length, the link may be as high as 50 Mbps.

Ethernet Extender - Connect Ethernet Networks Over Copper Wire 

Picture of Ethernet-Extender

  • No configuration, one simple two position switch
  • Transparent to network protocols
  • Protocol independent
  • Uses either one or two phone wire pairs.
  • 10/100BaseT Auto-Negotiation, auto-MDI-MDIX
  • Span distances up to 1900 meters
  • Self-configures from 1 Mbps to 50 Mbps depending upon cable characteristics
  • Available with optional   DIN rail mount
  • Powered by 12VDC from a 120 to 240 VAC power supply
  • LEDs indicate available speed
  •  Industrial aluminum case, -20C to 60C temperature range


Lan Connection
Data Port


Download the User Manual

Download a .pdf Data Sheet

How To Order



The  Ethernet-Extender extends 10/100 baseTx ethenet circuits up to 6,000 feet.  The Ethernet-Extender uses straight pair copper wire, either a single pair or for more speed, using two pairs in combination.Speeds are automatically maximized by the unit upon power up.  and range from 1Mbps up to 50 Mbps.  

Now you can utilize older RS-232 or telco wiring 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 single switch, indicating that one unit is the rmote and one is the local.  That's all there is to it.  

Power input is 12VDC supplied by the included 120-240 VAC power supply.  Other power supply options are available.




LEDs to indicate power and auto-configured  link speed. 


One DIP switch for Local or Remote.

RJ-11 Extender Port

Speed: 1/3/5/10/15/20/25/30/40/50 Mbps

Distance: Up to 1900 meters (6,000ft)

Cable: Telephone line (1 or two pair wire 24 AWG or larger) 

RJ-45 LAN Connection


Front Panel Indicators

Seven LEDs to indicate power and RJ-45 LAN 10/100BaseTx connection status

Top Panel Indicators

LED Color Speed Typical Distance
1 Green 1 Mbps 1900 meters
1 Amber 3 Mbps 1800 meters
2 Green 5 Mbps 1600 meters
2 Amber 10 Mbps 1400 meters
3 Green 15 Mbps 1200 meters
3 Amber 20 Mbps 1000 meters
4 Green 25 Mbps 800 meters
4 Amber 30 Mbps 700 meters
2 & 4 Amber 40 Mbps 600 meters
3 & 4 Amber 50 Mbps 300 meters

Physical / Electrical

Regulatory Compliance


UL60950-1, EN60950-1, IEC60950-1
FCC Part 15, Class A, EN61000-6-3, EN55022, EN61000-3-2, EN61000-3-3


EN61000-4-2 (ESD Standards)
  Contact: + / - 4KV; Criteria B
  Air: + / - 8KV; Criteria B
EN61000-4-3 (Radiated RFI Standards)
  10V/m, 80 to 1000MHz; 80% AM Criteria A
EN61000-4-4 (Burst Standards)
  Signal Ports: + / - 4KV; Criteria B
  D.C. Power Ports: + / - 4KV; Criteria B
  A.C. Power Ports: + / - 4KV; Criteria B
  EN61000-4-5 (Surge Standards)
Signal Ports: + / - 1KV; Line-to-Line; Criteria B
  D.C. Power Ports: + / - 0.5KV; Line-to-earth; Criteria B
  A.C. Power Ports: + / - 2KV; Line-to-earth; Criteria B
EN61000-4-6 (Induced RFI Standards)
  Signal Ports: 10Vrms @ 0.15~80MHz; 80% AM Criteria A
  D.C. Power Ports: 10Vrms @ 0.15~80MHz; 80% AM Criteria A
  A.C. Power Ports: 10Vrms @ 0.15~80MHz; 80% AM Criteria A
EN61000-4-8 (Magnetic Field Standards)
  30A/m @ 50, 60Hz; Criteria A       EN61000-4-11 (Voltage Dip Standards)
  A.C. Power Ports: 30% Reduction for 0.5 period; Criteria B

Environmental :

IEC60068-2-6 Fc (Vibration Resistance)
  5g @ 10~150KHz, Amplitude 0.35mm (Operation/Storage/Transport)
IEC60068-2-27 Ea (Shock)
  25g @ 11ms (Half-Sine Shock Pulse; Operation)
  50g @ 11ms (Half-Sine Shock Pulse; Storage/Transport)
IEC60068-2-32 Ed (Free Fall)
  1M (3.281ft

Front View
Front View 

Rear Panel
Rear View



Download a pdf version of the manual from 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
Voice: 217-897-6600
Toll Free: 800-4-DCB-NET
Toll Free: 800-432-2638
Email: Contact Page
Web: www.dcbnet.com
Fax: 217-897-1331
Shopping cart is
HACKER SAFE certified sites prevent over 99.9 of hacker crime.
All DCB web pages copyright ©1995--2016 Data Comm for Business, All rights reserved.
EtherPath®, EtherSeries®, EtherPoll®, EtherBridge® and EtherModem® are Registered Trademarks of Data Comm for Business, Inc.