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Home Products DSL VDSL LAN Extender with PoE

LAN Extender with PoE

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VDTU2A-104-4PH Ethernet Extender with PoE

VDTU2A-104-4PH Ethernet Extender with PoE

The VDTU2A-104-4PH is a high performance LAN extender that utilizes a single pair of copper telephone wire and features remote power feeding ability with 4-port PoE switch (40watts maximum all ports). VDTU2A-104-4PH solves two problems in LAN extension applications; it overcomes the Ethernet 100 meters (330ft) UTP limitation and installs a remote device without any extra power required. Two application can instantly benefit from the application of VDTU2A-104-4PH; IP surveillance with remote PoE IP cameras or VoIP application with remote PoE IP phones. VDTU2A-104-4PH is able to extend Ethernet to 1200 meters (3960ft) on a single copper pair and remotely power the 4-port PoE PSE switch. Data transmission, at 1200 meters, still has a respectable 28M/6.5Mbps DL/UP rate. VDTU2A-104-4PH is perfect when power is either unavailable or cost prohibitive at remote locations.

VDTU2A-104-4PH Ethernet Extender with PoE schematic


  • High Power deliver up to 40W by 1.2KM phone line
  • Support remote side Ethernet Port1~4 IEEE802,3at (40W for total PoE Power budget )
  • Power and data extend the distance up to 1.2KM by existing twisted pair phone line (24AWG)
  • Long Distance Speed up to 6.5M/28M (UL /DL ) @1.2KM
  • Wide transmission bandwidth data transmission
  • Surge Protection ,Reverse polarity protection ,Shirt circuit protection, IP30 Protection case
  • Desk and Wall mount
  • Operating Temperature -20 to 50°C



  • IEEE802.3 10BASE-T
  • IEEE802.3u 100BASE-TX
  • IEEE802.3x Flow Control and Back pressure
  • IEEE802.3af/at PoE

Data Architecture: Store and Forward
PoE RJ-45 pin assignment (only for VDTU2A-104R-4PH):

  • RJ-45 port 1~ 4 support IEEE 802.3at/af
  • Positive (VCC+): RJ-45 pin 4, 5
  • Negative (VCC-): RJ-45 pin 7, 8
  • Data (1,2,3,6)

PoE standard (only for VDTU2A-104R-4PH): IEEE802.3at/af

  • RJ11 x 1 or Terminal block x 1 for Twisted pair Phone line
  • 4 Port RJ-45 for 10/100Base T(X) Ethernet ,and IEEE802.3 af/at PoE (PoE port only for VDTU2A-104R-4PH)

Ethernet Cable: UTP/STP above Cat. 5e cable , EIA/TIA-568 100-ohm (100m)
Phone line cable: Phone twisted pair above AWG24
Power delivery:

  • Distance : 1200Meter by Twisted pair Phone line
  • PoE 40Watt totally
  • Support PTZ IP cam

Power feeding Watt: Power feeding by Phone line up to 40W for Total @1,200KM, Support Per Ethernet port up to IEEE802.3at 30W maxium.

Performance and Power feeding:


Power Input (Local side): 100~240VAC (VDTU2A-104L-4PH)



  • RJ-45 Per port 1~4: Link/Active (Green)
  • Power: Green (ON: Device Power ON )
  • CO LED OFF: Act as CPE, ON: Act as CO
  • Link(Phone) On: Link, Flash: Linking on going, Off: disconnect

Operating Temperature: -20 ~ 50°C

  • VDTU2A-104L-4PH : 200 x 190 x 48 mm(W x D x H)
  • VDTU2A-104R-4PH : 170 x 170 x 44 mm(W x D x H)

Housing: Metal Case

  • 2.3KG (For 1 pair,VDTU2A-104L-4PH + VDTU2A-104R-4PH)
  • 1.3KG (For VDTU2A-104L-4PH)
  • 1.0KG (For VDTU2A-104R-4PH)

Operating Humidity: 5 ~ 95% (Non-condensing)
Installation: Desk and Wall Mounting
Short circuit protection: Present (Phone line Power feeding short circuit protection)
Surge protection for Phone, Network Line: EN61000-4-5 Level 3 Criterial B (Line to Ground 2KV)
Reverse polarity protection:

  • Phone line DC Power feeding Polarity protection
  • RJ-45 Network Line PoE DC Power polarity Protection

Certification: CE ,FCC
EMI: FCC Part 15 Subpart B Class B, EN 55022 Class B