Adtran ISU 512 ISDN Inverse Multiplexer - 4 x ISDN BRI (U) Network, 1 x DTE, 1 x DTE, 1 x Dial - 512Kbps ISDN BRI

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Product Model:
ISU 512
Shipping Weight:
Manufactured by:
Out of stock
Genuine and factory sealed in box.
Valid for Canada only.
  • $2,898.00 CAD Regular Price:
  • $521.01 CAD You Save:
Not available
$2376.99 CAD

Marketing Information

The ISU 512 is designed to operate in a dual port mode for videoconferencing at 112/128 Kbps. This allows end-to-end compatibility when communicating with a video system utilizing two Switched 56 DSUs or a dual port ISDN terminal adapter. For this application, 56/64 Kbps is transmitted over the V.35 interface and the RS-530 interface. A special RS-366 Y cable provides the two RS-366 interfaces for this application. For convenience in communicating with multiple video sites, the ISU 512 can be configured to transparently switch between the dual port mode at 112/128 Kbps and the single port mode of 384 Kbps without user intervention and reconfiguration of the unit.

General Information

Product Type Inverse Multiplexer
Manufacturer Part Number 4202086L1
Manufacturer Website Address
Manufacturer Adtran
Product Model ISU 512
Product Name ISU 512 ISDN Inverse Multiplexer
Brand Name Adtran

Technical Information

Number of Data Channels 8
Number of Voice Channels 4


Interfaces/Ports 4 x RJ-45 ISDN BRI (U) Network
  1 x DTE RS-530
  1 x DTE V.35
  1 x Dial RS-366
  2 x RJ-45 Management

Media & Performance

Data Transfer Rate 56 Kbps to 512 Kbps ISDN BRI V.35 Full-duplex

Physical Characteristics

Dimensions 2.3" Height x 8.8" Width x 11.0" Depth
Weight (Approximate) 4.00 lb


Package Contents
  • ISU 512 Inverse Multiplexer
  • RS-530 Cable
  • RS-366 Y Cable
  • 4 x RJ45 Telephone Cables (7 Feet)
  • User Manual
  • Disclaimer

    This product is shipped only within Canada and Warranty valid for Canada only.

    Computer Valley makes every effort to provide accurate specifications, descriptions, images and price on all products that are found on

    However for complete and updated descriptions, compatibilities, specifications and actual photo we recommend our clients to consult with manufacturer's websites or simply call us for proper clarifications. Computer Valley is not responsible and will not accept returns for items purchased that are not compatible with your system. Please ensure that you have verified compatibility and actual photo with your system by visiting the manufacturer's web site prior to purchase or give us a call to make sure what you are purchasing.

    For more information, visit our Shipping and Return policy.

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