Adtran 1200127L1 Dual DSU III Module

Dual DSU III Module

The ADTRAN Dual DSU III Module is one of several expansion modules for the TSU Multiplexer family of products. This module should be selected when the customers data terminal equipment (DTE) needs to be connected to the Digital Data Service (DDS) or the Switched 56 network using a T1 line. The module installs in the expansion slot of the TSU and is subject to the units operation and control. A plug-on version of the Dual DSU III is also available for any of the other TSU expansion modules. Both the expansion module and the plug-on module provide two DTE interfaces each. Additional features of the Dual DSU III module include a DTE-to-service rate-matching feature for both dedicated and switched modes, and various anti-streaming time-out values used to disable streaming terminals on a multi-point circuit. Private networks and modem tail circuits can be accommodated through clocking/timing options.

This Adtran 1200127L1 Dual DSU III Module is in refurbished condition and is fully guaranteed by our 90-day warranty. Please feel free to contact us regarding our inventory of refurbished Adtran networking equipment, or if you have any additional questions regarding this 1200127L1 Dual DSU III Module.

United States of America Shipping


Orders for this Adtran 1200127L1 unit which qualify for Free Super-Saver Shipping are shipped at our discretion via the lowest cost method. We use FedEx, UPS, and US Postal Service as shipping carriers. We cannot ship this Adtran 1200127L1 within the USA by billing directly to your shipper account number. All shipping charges must be pre-paid at checkout.


International / Foreign Shipping


Adtran 1200127L1 Dual DSU III Module units which are shipped internationally have a mandatory 4-10 business day security holding period between payment being received and shipment processing. This security policy is to allow funds to fully clear our bank account. International transport costs can be charged directly to your FedEx or UPS account number. We cannot ship internationally using your TNT account number; however you can coordinate with TNT to have them pick up the shipment from our location.


Expedited and Rush Shipping can usually provide expedited (1 or 2 day shipping) for Adtran products; however there is an additional rush fee per unique Adtran 1200127L1 Dual DSU III Module unit in addition to the product cost and expedited carrier shipping charges. If we can offer expedited shipping for an item, expedited shipping costs will be shown at checkout. If we cannot provide expedited shipping for an item, then you will not be presented with these options during the cart checkout process.

  • Manufacturer: Adtran
  • Part Number: 1200127L1
  • Units in Stock: 2
  • Condition: Refurbished
  • Warranty: 90 Days
  • Description: Adtran 1200127L1 Dual DSU III Module

  • Usually ships next business day.
    Expedited shipping not available.
  • Price: $87.95