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E1 G.703/G.704 Network Termination Unit (NTU) - V.35

Terminate E1 and get conversion to a V.35 network.


7 In Stock
1 Year Double Diamond™ Warranty (Standard)

*Required field

Product Features

  • Terminates E1 G.703/G.704 services for all nx64-kbps rates to 2.048 Mbps.
  • Provides conversion for connection to LANs with a V.35 interface, routers, FRADs, or CODECs.


  • Operates at distances up to 1 mile (1.6 km).
  • Offers 75-ohm dual coax and 120-ohm twisted-pair G.703 connections.
  • DIP switches provide quick configurations.
  • Flexible clocking, switch-selectable AMI/HDB3 coding, V.54/V.52 diagnostics, and user-selectable data rates.
  • Check status via front-panel LEDs.
  • Provides local and remote loopbacks.

  • Tech Specs

    CE Approval Yes
    Clocking Smooth clocking: internal, external or receive recover
    Connectors (1) RJ-48, (1) V.35
    Diagnostics Local/remote loopback, 511, 511d ERT
    Distance (Maximum) 1 mi. (1.6 km)
    Indicators E1 Link Status, TD, RD, Loss of Sync, Error, Test Mode
    Line Coding AMI or HDB3
    Line Framing G.703 (unframed), G.704/G.732 (framed)
    Power 120-240 VAC, 50-60 Hz, autosensing
    Size 1.5"H x 4.2"W x 5.8"D (38.1 x 10.7 x 14.7 cm)
    Speed 2.048 Mbps, nx64 kbps
    Weight 1 lb. (0.5 kg)

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.



    Double Diamond Warranty Diamond

    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The E1 G.703/G.704 Network Termination Unit (NTU) - V.35 comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.