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Adtran Atlas 550 Dual EIA-530 USSI Module 4200754L2


Compare at: $1,067.99

(You save $178.00)

SKU: 4200754L2
Condition: Refurbished
In Stock

A-Stock: Great cosmetic condition.

B-Stock: May contain cosmetic blemishes such as surface scratches, worn or yellowed buttons, etc...

These phones have been tested and are fully functional. All phones are refurbished and come individually boxed with new curly cords, new designations, and a one year warranty!


The Adtran USSI Module 4200754L2 is an Atlas 550 module that features dual EIA-530 universal synchronous serial interface (USSI) ports that can be combined with other Atlas modules to provide different solutions. This USSI module is only compatible with Atlas 550 gateways.

Adtran 4200754L2 Features:

  • Provides two EIA-530 synchronous serial ports
  • Each module supports one interface type on both ports
  • Each port supports Nx56/64 Kbps operation up to 2.048 Mbps
  • Supports Frame Relay emulation and passthrough
  • Includes adapter cables for DB-37, DB-25, or DB-15 depending on interface type


  • (1) Adtran 4200754L2 Atlas 550 Dual EIA 530 USSI Module
  • 1 Year Warranty
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