• The Black Box Store
  • Welcome
  • Talk to an Expert
    Close
    Get answers
    from an Expert any way you want.


    Helping our customers find exactly what they need is what makes Black Box different.

    Reach us any way you want.



    We'll call you

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



    (

    (U.S. and Canada Only)

    Reach us by telephone
    724.746.5500
    Answered in 30 seconds or less!


    Send us a Fax
    800.321.0746
    Answered in 15 minutes or less!


    Send an e-mail
    Shoot us an email and we will answer in 60 minutes or less!


  • Account
  • View Cart

Search Tips...

Keyword Search
Our search engine uses any or all keywords typed in the text box to give you product search results.
For instance, typing in kvm will give you a broader set of results than kvm switch cables.

Note, however, that keywords in quotes are treated as a single phrase and will not be evaluated individually.

Booleans (AND, +, OR, NOT, -) are not supported.

Also, some keywords will not return results, and may automatically correct to a similar keyword.

Part Number Search Selection
Select this Search in the drop down box to search by part number instead of keywords.

Wild Card Search
The * character is only supported in a limited capacity. Using whole words is the best approach whenever possible.

"New Search" Radio Button
Search the entire section that you are currently in.

"Search Within Results" Radio Button
Enter keywords or a part number to limit your results within the previously searched results.


Other features

A list of all matching product categories or resources will appear in the upper left corner of the results page, when applicable, to help you further narrow your results, if you desire.

Use the "sort by" drop-down menu on the results page to sort by "most popular" and price (low to high or high to low)
in the store section.


Need technical advice? Call 1-877-877-2269 for an expert in less than 30 seconds.

Datacom > Modems & CSUs

click photo to enlarge

ME375A-R2

Photo may show similar product

Other views

Async/Sync RS-232 2-Wire Short-Haul Modem  

Blast off! Transmit async or sync data at rocket speeds!

ME375A-R2

Extended Double Diamond™ Warranty Available
(Three years for two)

Product Highlights

  • Transmits async data up to 38.4 kbps and sync data up to 128 kbps using 2B1Q line coding.

  • Description

    Async/Sync RS-232 2-Wire Short-Haul Modem


    Quick Facts

  • Transmits async data up to 38.4 kbps and sync data up to 128 kbps using 2B1Q line coding.

  • Further Details

  • Adaptive equalizer provides noise immunity and high performance over low-quality lines.
  • Full diagnostics include internal BERT and local and remote loopbacks.
  • Full-duplex operation using echo cancellation.
  • Single sync/async channel.
  • 2-wire, twisted-pair operation.
  • Transmits at over 3 miles (5.4 km)—even at maximum speeds.

    The Async/Sync 2-Wire Short-Haul Modem runs at amazing speeds—async data goes 38.4 kbps; sync data travels at 128 kbps. And you get this astounding data rate even at this modem’s maximum distance of 3.4 miles (5.4 km) over your existing, inexpensive, 2-wire twisted-pair lines! Because of the short-haul modem’s adaptive echo-cancelling technique, full-duplex is possible over only two wires.

    Perform diagnostics on local analog loopback as well as local and remote digital loopback. You can test both the local and remote modems and the line at either end when you’re in the digital loopback mode. And you can control the loopbacks with a manual switch or through the DTE interface.

    This short-haul modem is coupled to the line through an isolation transformer that protects against AC or DC overvoltages, and internal, external, and receive clocking keep your data moving smoothly.

  • Technical Specifications for Async/Sync RS-232 2-Wire Short-Haul Modem:

    Clocking — Internal, external, receive
    Distance (Maximum) — 3.4 mi. (5.4 km) over 26 AWG wire
    Operation — Full-duplex
    Protocol — Async or sync
    Speed (Maximum) — Async: 38.4 kbps;
    Sync: 128 kbps
    Interface — RS-232 (DCE)
    Connectors — (1) DB25 F, (1) 4-screw terminal block, (1) RJ-45
    Power — 115 VAC, 60 Hz (230-VAC, 50-Hz version on request)
    NOTE: Must be used in pairs.

    This product works with:
    • GigaBase® 350 CAT5e, 350-MHz Bulk Cable, 4-Pair (EYN851A-PB-1000)
    • Standard RS-232 Low-Noise Cable, 25-Conductor (ECM25T, ECM25C)
    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 Async/Sync RS-232 2-Wire Short-Haul Modem:


    Connect your Async/Sync RS-232 2-Wire Short-Haul Modem 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 One year warranty is included.

    Extended Two years for one Warranty Available


    Protect your purchase with an additional Two years for oneDouble Diamond™ warranty!
    Cost: $73.00

    Extended Three years for two Warranty Available


    Protect your purchase with an additional Three years for twoDouble Diamond™ warranty!
    Cost: $145.99

    Diamond

    Double Diamond™ Warranty (Standard)

    Coverage:

    The most complete product warranty exclusively from Black Box

    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 products come with a one- or two-year warranty. Some products, such as copper cables, manual switches, cabinets, and racks, are guaranteed for life! Standard Warranty features are as follows:

    Worry-Free Purchases

    If your new Black Box® brand products are accidentally damaged, you're covered with this no-questions asked warranty. FREE

    Coverage

    Double Diamond™ is the standard warranty that comes with your new Black Box® brand product. Most products come with a one- or two-year warranty.

    Lifetime Guarantees

    Many products, such as copper cables, manual switches, cabinets, and racks, are guaranteed for life.

    Fast Service

    During the warranty period, Black Box® Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!

    Extra Coverage

    Extend your warranty or protect a previously purchased Black Box® brand product* for an additional year for only 10% of the current retail price! And when you do, we give you the second year of extended coverage free! FREE Tech Support Hotline. No cost. No contracts. No kidding!

    No-Risk 45-Day Return Policy

    If it's not right, send it back.
    (Excludes custom built products)

    * 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! Forget It.
    Tech Support Hotline 100% FREE! $$$
     

    Add to Cart

    Price: $729.95

    Quantity

    Warranty

    Total

    Shipping Info

    Usually Ships in 3-5 days


    45-day return policy


    Share It   




    Your shopping cart is empty

    Got Questions?

    chat with a rep

    Talk to Black Box

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



    (

    (U.S. and Canada Only)

         



    Print
    Black Box 1-877-877-2269
    Black Box Network Services