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T1 Rate Converter - V.35, AC


Please call 877-877-2269 for a replacement product or part.
Extended Double Diamond™ Warranty Available (3 Additional Year)


  • Data transmission is synchronous and full duplex.
  • AC- and DC-powered models plus Rackmount Cards available.
  • Enable you to convert from V.35 or RS-530 to T1.
  • Feature two techniques of line coding each and three methods of clocking.

  • Two ways to T1 speed.
    Our T1 Rate Converters support unframed operation, enabling you to take advantage of T1’s 1.544-Mbps speed in a single channel. Data transmission is synchronous and full duplex.

    Two techniques of line coding can be used for T1 transmission: B8ZS or AMI. Line impedance is rated at 100 ohms across the T1 channel.

    Three timing methods can be used. Clocking can be received from the T1 line, managed externally from the network device connected on the other end of the V.35 or RS-530 link, or performed internally from the converter's oscillator.

    For diagnostics, local analog loopbacks can be activated from the T1 or DTE interfaces. Three front-panel LEDs show when data is transmitted to the link, when data is received from the link, and when no data is received from the link. A fourth LED indicates active loopback. A fifth LED shows when the unit is powered up.

    Three models each are available for T1 to V.35 conversion and T1 to RS-530 conversion. Choose from AC- or DC-powered standalone units or Rackmount Cards. The Rackmount Cards fit in our RackNest 2/14.

    Tech Specs

    Clocking Received, internal, external
    Connectors (1) RJ-48C and either (1) M/34 F or (1) DB25 F
    Line Impedance Unbalanced: 100 ohms
    Power AC and Rackmount Card versions: 100 to 240 VAC, 47 to 63 Hz; DC version: -48 VDC
    Size 1.5"H x 7.4"W x 6.2"D (3.8 x 18.8 x 15.7 cm)

    * 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

    Extended 1 Year Warranty Available

    Protect your purchase with an additional 1 Year Double Diamond™ warranty!
    Cost: $62.00

    Extended 3 Year Warranty Available

    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $123.99


    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 T1 Rate Converter - V.35, AC comes with a standard 1 YEAR warranty 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.