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Adtran ISU 128 1202029L2 128 kbps ISDN Service Unit
Only $30.00
Adtran ISU 128 1202029L2 128 kbps ISDN Service Unit Adtran ISU 128 1202029L2 128 kbps ISDN Service Unit
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Adtran ISU 128 1202029L2 128 kbps ISDN Service Unit

SKU 17210 Refurbished (Grading Guide)
Sale Price $30.00
Regular Price $137.99
You Save $107.99
Status In Stock
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Item Information
Adtran ISU 128 1202029L2 128 kbps ISDN Service Unit


  • Provides for dial-up or leased line access
  • An ISDN network termination device that terminates an ISDN BRI U-interface and provides V.35 and EIA-530/232 DTE serial interfaces.
  • Synchronous DTE rates from 2400 bps to 128 kbps
  • Asynchronous DTE rates from 300 bps to 115.2 kbps
  • Dialing via front panel, stored numbers, DTR assertion, AT commands, V.25 bis, or RS-366
  • Multilink PPP or BONDING protocols for aggregating 64 kbps B-Channels
  • Remote configuration over the ISDN line
  • Switch type support includes National ISDN-1, Lucent 5ESS, Nortel DMS-100, and NEC


  • These items have been refurbished
  • Refurbished items have been cleaned, tested, and confirmed to be fully functional
  • These items may have minor blemishes on their housings which cannot be removed during the refurbishing process
UPC: 00607565000447

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Rest assured, if you order the wrong items, don't like the model, or just don't need it anymore we accept returns with NO restocking fees. Whether you want something different or just a credit, we have you covered! This policy goes hand in hand with our company culture of delivering outstanding customer satisfaction.

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  • Item(s) must be returned within 30 days from invoice date.
  • Item(s) must be received in original condition preferably in the same packing materials.
  • Item(s) should be securely packed for safe return.
  • The purchaser is responsible for all shipping costs and insurance.


  • Products usually ship within two business days after payment. If you have a rush order, or need an item delivered on Saturday please call to request faster shipping.
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