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Datacom > Modems and CSUs


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ME251A-R3

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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.


  • Description

    SME-4M (for RS-232), 38.4 kbps Standalone


    Quick Facts

  • 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.


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

    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 877-877-2269.

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


    Connect your Synchronous Modem Eliminator (SME-4M) for RS-232, Standalone with:

    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

    Standard Manufacturer's Warranty


    A warranty is included.

    Extended 1 Year Warranty Available


    Protect your purchase with an additional 1 Year Double Diamond™ warranty!
    Cost: $31.00

    Extended 3 Year Warranty Available


    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $61.99

    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 no-questions-asked warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    Most of our products come with a one- or two-year warranty. Some products—such as copper cables, manual switches, cabinets, and racks—are even guaranteed for life!

    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.

    * Certain products may not be eligible.

    Warranty Compared

    Black Box® Double Diamond™ Warranty The Competition
    Warranty Length One Year to Lifetime, Depending on the Product. Read the fine print.
    Guaranteed for Life! Black Box® Brand Copper Cables, Manual Switches and More! No.
    Accidental Damage 100% Covered! No.
    Water Damage 100% Covered! No.
    Power Surges 100% Covered! No.
    Warranty Replacements No Questions Asked! ?
    Tech Support Hotline 100% FREE! $$$

    What’s more, we also have a 45-day, no-questions-asked 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: $319.95

    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, no-questions-asked 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.


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