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Communications Adapter Plus (CAP)  

Overcome any async data incompatibility!


Extended Double Diamond™ Warranty Available (3 Additional Year)

Product Highlights

  • Supports word structure, character set, data rate, and transmission-mode conversions.
  • Supports hardware or software buffer flow control.

  • Further Details

    With the Communications Adapter Plus (CAP), you can make your two mismatched async serial devices communicate by translating between two mutually unintelligible protocols.

    Configure the CAP's two RS-232 ports individually via DIP switches for the greatest conversion flexibility you'll find anywhere.

    The CAP converts word structure (number of data bits, parity, and stop bits), character sets (ASCII, EBCDIC, Baudot, transcode, and ticker tape), and flow control (DTR/CTS, X-ON/X-OFF, ENQ/ACK) bidirectionally between half- and/or full-duplex modes and speeds from 45.5 bps to 38.4 kbps. The flow-control buffer is 32 KB, enabling even slow machines to talk to fast ones.

    Controls Front-panel Reset
    Flow Control Hardware, X-ON/X-OFF, ENQ/ACK, DTR/CTS
    Memory 8 KB EPROM, 32 KB RAM
    Processor Z-80 CPU
    Protocol Async only
    Speed 45.5 bps to 38.4 kbps
    CE Approval CMA02A
    Interface RS-232, configured as DTE
    Connectors (2) DB9 F
    Power 115 VAC, 60 Hz, 95 mA, 11 watts
    Size 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm)
    Weight 1 lb. (0.5 kg)
    NOTE: 230-VAC, 50-Hz power supply available. For details, contact our FREE Tech Support.

    These products work with:
  • 12-Card Rack for CAP (RM010-CAP)
  • 9-Pin to AT® Cable (EHM025-0010)
  • 9-Pin to Modem Cable (EHM024-0010)
  • DB9 Extension Cable with EMI/RFI Hoods (EDN12H)
  • AT Adapter (Serial) DB9 Male to DB25 Female (FA521A-R3)
    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.

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

    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 Communications Adapter Plus (CAP) 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.

    Product SKU Price Quantity
    Communications Adapter Plus (CAP) CMA02A $416.10

    Add to Cart

    Price: $375.70

    Quantity Available: 16




    Shipping Info

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

    Weight: 0.7 lbs.
    HxWxD: 1.7 x 11.7 x 11.1 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.

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