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Sync Short-Haul Modem, Nonpowered, Multipoint (Sync SHM-NPR MP), DB25 Female  

The choice for multipoint sync applications.


1 YEAR DoubleDiamond™ Warranty (Standard)

Product Highlights

  • Versatile—use in point-to-point or multipoint applications.
  • Switch-selectable clocking.
  • Optional built-in surge protection.

  • Further Details

  • Carrier mode is selectable.
  • DC transformer isolation eliminates the threat of ground loops.
  • An optional 600-watt surge-protection sentry guards your equipment from harmful electrical surges.

  • Distance (Maximum) — 8.5 mi. (13.6 km)
    Operation — 4-wire half- or full-duplex
    Protocol — Synchronous
    Speed — 19.2 kbps at 3.5 mi. (5.6 km)
    CE Approval — Yes
    Interface — RS-232 (DCE)
    Connectors — ME737A-M; (1) DB25 M, (1) 5-screw terminal block;
    ME737A-F, ME729A-FSP: (1) DB25 F, (1) 5-screw terminal block;
    ME734A-FSP: (1) DB25 F, (1) RJ-11;
    ME735A-FSP: (1) DB25 F, (1) RJ-45
    Power — Pins 4 or 20, 6 VDC
    These products work with:
    • GigaBase® 350 CAT5e, 350-MHz Bulk Cables, 4-Pair, 1100-ft. (335.3-m), (EYN851A, etc.)
    Questions? Contact Tech Support.

    NOTE: Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 1-800-316-7107.

    Product Data Sheets

    Black Box Explains

    Double Diamond Warranty
    1 YEAR DoubleDiamond™ Warranty (Standard)

    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 Sync Short-Haul Modem, Nonpowered, Multipoint (Sync SHM-NPR MP), DB25 Female 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.

    You can find this product in the following subcategory(s)

    Add to Cart

    Price: $290.85

    On Back Order




    Please Note: Once ordered, this product cannot be cancelled or returned for credit.

    Shipping Info

    Weight: 0.15 lbs.
    HxWxD: 1.32 x 5.06 x 6.27 in.

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