Black Box Ethernet Extender - short-haul modem
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Black Box Ethernet Extender - short-haul modem
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Black Box Ethernet Extender - Short-haul modem - Ethernet, Fast Ethernet - 10Base-T, 100Base-TX - 8 ports - RJ-48 / RJ-45 - T-1/E-1 ( pack of 2 )

Item#:  8581057  | Model#: LR0308A-KIT
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Black Box Ethernet Extender - short-haul modem Product Details

Multiplexes 10BASE-T/100BASE-TX Ethernet across eight Fractional T1/E1 lines.

The pair of extenders included with this kit act as a bridge, enabling you to link two Ethernet networks across eight T1/E1 lines. Because you're using leased lines provided by your telco, there are no distance limitations - you can extend your network anywhere you can get a T1 line.

The T1/E1 Ethernet Network Extender converts protocols and data from Fractional T1/E1 to 10BASE-T/100BASE-TX Ethernet and supports both framed and unframed modes with line codes.

The extenders multiplex data onto all eight lines and automatically maintain the connection if a T1/E1 line goes down. When the line comes back into service, the extenders automatically restore it.


   Packaged Quantity:  2 (specifications are for single item)
   Device Type:  Short-haul modem
   Form Factor:  External

   Ports Qty:  8
   Connectivity Technology:  Wired
   Cabling Type:  10Base-T, 100Base-TX
   Data Link Protocol:  Ethernet, Fast Ethernet
   Data Transfer Rate:  15.872 Mbps
   Line Rate:  T-1/E-1
   Status Indicators:  Port status, link activity, power
   Features:  Auto-uplink (auto MDI/MDI-X)
   Compliant Standards:  IEEE 802.3

Expansion / Connectivity
   Interfaces:  2 x Ethernet 10Base-T/100Base-TX - RJ-45 ¦ 8 x T1/E1 - RJ-48 ¦ 1 x serial - RS-232 input - 9 pin D-Sub (DB-9) female

   Power Device:  External power adapter
   Voltage Required:  AC 120/230 V ( 50/60 Hz )

Dimensions & Weight
   Width:  10.2 in
   Depth:  5.9 in
   Height:  1.7 in

Environmental Parameters
   Min Operating Temperature:  32 °F
   Max Operating Temperature:  122 °F
   Humidity Range Operating:  5 - 95%
  • Manufactured by: Black Box Corporation
    Warranty provided by: Black Box Corporation
    UPC No:
    Mfg Part No: LR0308A-KIT
  • Box Size: ( Length:0, Width:0, Depth:0)
    Shipping Weight: 9.0600 pound(s)
    Click here for full warranty and support information
  • Black Box Corporation logos are registered trademarks of Black Box Corporation. All others trademarks and copyrights mentioned herein are the property of their respective owners.
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