Loading
  • Black Box Products
Prices listed do not include shipping and/or tax charges. Please call for quote.

Datacom > Modems and CSUs


click photo to enlarge

ME251A-R3

Photo may show similar product

Other views

Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone  

IBM compatibility and sync or async operation.

ME251A-R3

Extended Double Diamond™ Warranty Available (3 Additional Year)

Product Highlights

  • Connect equipment up to 100 feet (30.4 m) apart.
  • Provides clocking to both DTEs.
  • Operates in either sync or async modes.


  • Further Details

  • Runs at 38.4 kbps.
  • Operates full- or half-duplex.
  • Has two DB25 connectors and six LEDs (TX, CTS, and DSR for each of the two ports).

  • We've tailored our SME-4M for your IBM equipment. Use it to regenerate the RS-232 signals, so you can send data up to 100 feet (30.4 m). Then you can put your sync (or async) devices where you want them.

    Use the SME-4M to provide clocking to your system, instead of a pair of modems or line drivers to connect controllers or other systems to your front-end processor. You can monitor the operating status easily with a glance at the front-panel LEDs.

    Because the SME-4M is so small and lightweight, it minimizes logistics problems and simplifies installation and replacement in the field. No special tools are required either. It's definitely designed for do-it-yourself installation.

    Distance Up to 100 ft. (30.4 m) total
    Operation Full- or half-duplex
    Protocol Synchronous or asynchronous
    Speed 38.4 kbps
    Interface RS-232
    Connectors (2) DB25 F
    Indicators (6) LEDs: TX, CTS, DSR for each of the two ports
    Power 115 VAC, 60 Hz (230-VAC version on request)
    Size 1.8"H x 5.5"W x 8.6"D (4.6 x 14 x 21.8 cm)
    Weight 2 lb. (0.9 kg)
    These products work with:
  • RS-232 Cable, 25-Conductor, Male/Male (ECM25C)
    The ME251C-R3 works with:
  • 12-Card Rack (RM008).
    Questions? Contact our FREE 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.

  • Accessory: ECM25T-0010-MM

    Standard RS-232 Low-Noise Cable, 25 Conductors—Pins 1–25, Male/Male, 10-ft. (3.0-m)

    Standard RS-232 Low-Noise Cable, 25 Conductors—Pins 1–25, M/M, 10-ft. (3.0-m)

    Double Diamond Warranty
    Extended Double Diamond™ Warranty Available (3 Additional Year)
    Diamond

    Double Diamond™ Warranty (Standard)

    Coverage:

    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 Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone 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: $369.65

    Quantity Available: 3

    Quantity

    Warranty

    Total

    Shipping Info

    In Stock - orders received before 5PM ET ship same day

    Weight: 2.3 lbs.
    HxWxD: 4.3 x 6.5 x 13.1 in.

    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.


    Share It   




    Got Questions?

    Call 1-800-316-7107
    ...or have us call you.

    An expert will call you in
    30 seconds. It's live and it's free.









    (U.S. and Canada Only)

         
    Close






    You have added this item to your cart.

    Important message about your cart:

    You requested more of "" than the currently available. The quantity has been changed to them maximum quantity available. View your cart.

    Print
    Black Box 1-800-316-7107 Black Box Network Services