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RS-232 to RS-423/449 Adapter, 449 DCE to 232 DTE

Convert to RS-423.


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

Product Features

  • The converter for DEC equipment.
  • Nonpowered—use it anywhere!
  • Easy to use.


  • DTE and DCE versions available.

  • By using RS-449 pinning assignments, you can convert from RS-232 to RS-423, making the RS-232<–>RS-423/449 Adapter from Black Box your best choice for DEC™ equipment.

    Set handshaking with the adapter's two-position switch—it's easy. The adapter is interface powered, so you can use it anywhere, and you don't need to stay near an outlet.

    Choose an adapter with appropriate interface configurations. The adapter configures the RS-232 for DTE (data-terminal equipment) and the RS-449 for DCE (data-communications equipment).

    Tech Specs

    CE Approval Yes
    Connectors (1) DB25 serial F, (1) DB37 parallel M
    Power From the interface
    Signals Supported All data, handshake, and timing
    Size 0.9"H x 3.1"W x 3.4"D (2.3 x 7.9 x 8.6 cm)
    Weight 0.3 lb. (0.1 kg)
    This product works with:
    • DB37 Interface Cable, Male/Male (EDN37J)
    Questions? Contact Tech Support.

    * 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: $27.50

    Extended 3 Year Warranty Available

    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $54.99


    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 RS-232 to RS-423/449 Adapter, 449 DCE to 232 DTE 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.