ADTRAN INC | 1200065L1
TSU Drop & Insert Plug-In Module

MFR PART #  1200065L1
PART #  397169
Minimum 1 EACH
Call for Availability


The Adtran Drop and Insert (D&I) Module provides a secondary T1 (1.544 Mbps) interface to TELCO or to private T1 facilities. By adding the D&I Module to a TSU multiplexer, the user has the capability to support 2 independent T1s for data, voice, or video, eliminating the need for a second multiplexer. The module provides the capability to selectively insert and extract channels between the primary T1 interface on the TSU multiplexer and the secondary T1 interface on the module. This allows for the connectivity of two remote sites through a central site. The module operates with either AMI/B8ZS coding or D4/ESF framing.


  • Provides secondary T1 interface
  • Allows data insert and extraction between primary and secondary T1 circuits
  • D4 or ESF framing
  • AMI or B8ZS coding
  • Full performance information
  • T-Watch PRO monitoring and control
  • Easy configuration from front panel or VT 100 terminal
  • Industry-leading five-year North American warranty


UNSPSC Code 55101515

Spec Sheet

Spec Sheet

Shipping and Fulfillment Policy

When you order products from, the order is processed within one to two business days. Orders received during non-business days are processed on the next business day.

You have several shipping options for parcel shipping: standard ground 5 to 7 business days, 2 to 3 business days, or next business day. orders ship to addresses within the United States. orders do not currently ship to addresses outside the United States or military/government APO/FPO locations. We are also not able to ship to Post Office Box addresses. If you wish to ship to an address outside the United States or a military/government location, please contact your local Anixter sales representative to discuss your options.

In addition, offers Less-Than-A-Truckload “LTL” option for products that cannot be shipped via parcel shipping. For products that will be shipped via LTL, you will be provided with a set of Accessorials to select from to provide Anixter with additional shipping considerations, such as residential delivery, inside delivery, liftgate or limited access.

  • Residential Delivery - A residential delivery charge applies to shipments to a home or private residence, including locations where a business is operated from a home, or to any shipment in which the shipper has designated the delivery address as a residence.
  • Inside Delivery - When requested, freight carrier unloads shipments from or to areas that are not next to the trailer, such as shopping malls or office buildings. An elevator must be available to provide service to floors above or below the trailer.
  • Liftgate - Freight carrier provides liftgate service, if needed, to load and unload a shipment when loading/unloading docks are not available.
  • Limited Access Locations - A limited access location is a site where pickup or delivery is restricted or limited.

Shipping charges are calculated based on the shipping option you select, and is prepaid by you at the time of shipment.