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Connect Cisco equipment to your communication devices over inexpensive CAT5e or CAT5 cable.

Price: $91.90

Sold As is with no warranty.

Product Features

  • Feature a fully mold-injected housing with soldered internal connections for durability.
  • Provide sync connectivity to SDLC communications servers.
  • Provide for out-of-band management of network devices and support reverse Telnet.
  • Guaranteed for life!
  • Details

  • Enable DTE/DCE connectivity between two routers to emulate HDLC or Frame Relay lab/classroom environments.
  • Support ATMs attached to routers using DLSw or STUN.
  • DTE models support async modem connections via DB60 or a high-end router DB25 auxiliary interface.
  • DTE models enable connectivity to digital or analog tail circuits.
  • The RS-232 DB25 model EHC311 supports console and auxiliary connectivity to terminal devices on high-end routers. It also enables you to attach 3X74 serial controllers to a router using DLSw or STUN, eliminating proprietary IBM® cabling.
  • An RJ-45 interface on the Smart Serial model enables connection to the ADT focus alarm panel on the Cisco low-speed serial interface.
  • Tech Specs

    NOTE: Cables with V.35 connectors and pinning are available as a custom order. For details, 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.


    Double Diamond Warranty Sold As is with no warranty. Diamond

    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.

    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.