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38890-R2

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Asynchronous Local Fiber Optic RS-232 Muxes  

The clarity and speed of fiber optics for your local communications.

38890-R2

Extended Double Diamond™ Warranty Available
(3 Additional Year)

Product Highlights

  • Time-division multiplexors with built-in fiber optic line drivers.

  • Description

    Async Local Fiber Optic RS-232 Multiplexor, 8-Port


    Quick Facts

  • Time-division multiplexors with built-in fiber optic line drivers.

  • Further Details

  • The 4-port model supports speeds up to 64 kbps per port, the 8-port model supports speeds up to 38.4 kbps per port, and the 16-port model supports speeds up to 19.2 kbps per port.
  • Duplex operation at distances up to 10,000 feet (3048 m) over point-to-point fiber cabling.
  • Have dual ST multimode fiber connectors on their composite interfaces.

  • Our Async Local Fiber Optic RS-232 Muxes are time-division multiplexors that support 4- or 16-channel speeds up to 64 kbps with the 4-port, up to 38.4 kbps with the 8-port, and up to 19.2 kbps with the 16-port muxes.

    If you're looking for an economical alternative to leased-line modems and statistical mulitplexors, a BLACK BOX® Async Local Fiber Optic RS-232 Mux is what you need. Get speed and savings in your async environment.


    Technical Specifications for Asynchronous Local Fiber Optic RS-232 Muxes:

    Distance (Maximum) 10,000 ft. (3048 m) over duplex multimode fiber
    Multiplexing Technique Time division
    Operation — Full-duplex
    Protocol Async
    Speed (Maximum) 38888-R2: 64 kbps per port;
    38890-R2: 38.4 kbps per port;
    38892-R2: 19.2 kbps per port
    Interface Channel: RS-232 DCE;
    Composite: Dual ST® multimode fiber optic
    Connectors Channel: (4), (8), or (16) RJ-45;
    Composite: (1) pair of ST
    Power 115-VAC, 60-Hz external power supply
    Size 38888-R2, 38890-R2: 1.7"H x 7"W x 5.3"D (4.3 x 17.8 x 13.5 cm);
    38892-R2: 2.2"H x 7"W x 5.3"D (5.6 x 17.8 x 13.5 cm)
    NOTE: These muxes do not support hardware flow control. Software flow control (X-ON/X-OFF) is passed through on the data lines.

    NOTE: Must be used in pairs.

    These products work with:
    • Multimode, General-Purpose Fiber Optic Bulk Cable (EXN062A)
    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 Asynchronous Local Fiber Optic RS-232 Muxes:


    Connect your Asynchronous Local Fiber Optic RS-232 Muxes with:

    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: $63.40

    Extended 3 Year Warranty Available


    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $126.79

    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.

    Product SKU Price Quantity
    Asynchronous Local Fiber Optic RS-232 Muxes 38888-R2 $601.95
     
    Asynchronous Local Fiber Optic RS-232 Muxes 38892-R2 $985.95
    You can find this product in the following subcategory(s)
     

    Price: $649.95

    Quantity Available: 0

    To order please call
    1-877-877-2269

    Shipping Info

    call 1-877-877-2269

    Weight: 3.281 lbs.
    HxWxD: 3.25 x 9 x 15.8 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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