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Home > Networking Hardware > Network & Interface Modules > Adtran 2-Port Line Interface Unit (LIU)

Adtran 2-Port Line Interface Unit (LIU)

2 x T1 - Interface Module

Adtran 2-Port Line Interface Unit (LIU)
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Adtran 2-Port Line Interface Unit (LIU)
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Item No.  227757
Mfg Part No.  1180009L1
Product Condition:  New
Manufacturer:  Adtran

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Highlights for Adtran 2-Port Line Interface Unit (LIU)

Marketing Information

The Adtran Total Access 1500 Dual T1 Line Interface Unit (LIU) is a common module plug-in unit that connects the channel bank to a T1 line at the DSX-1 level. All data formatting and line encoding, as well as backplane timing and control, are performed by the ACT LIU. The LIU can be provisioned locally with on-board switches, remotely through the SCU craft interface, or remotely through network management.

General Information

  • Manufacturer: Adtran
  • Manufacturer Part Number: 1180009L1
  • Product Name: 2-Port Line Interface Unit (LIU)
  • Manufacturer Website Address: www.adtran.com
  • Product Type: Interface Module
  • Brand Name: Adtran

Media & Performance

  • Data Transfer Rate: 1.544Mbps T1

Management & Protocols


Additional Information

  • AMI or B8ZS line code formats
  • Local and remote loopbacks
  • Front panel Bantam jacks for monitoring T1s
  • Front panel indicators showing the status of the unit


    Total Access 1500 Chassis

    Power Description

    Environmental Conditions

    Physical Characteristics

  • Dimensions: 3" Height x 0.9" Width x 9.72" Depth
  • Weight: 2 lb



  • Interfaces/Ports: 2 x T1
  • Interfaces/Ports Details: 2 x T1

I/O Expansions

Processor & Chipset





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Adtran 2-Port Line Interface Unit (LIU)

2 x T1 - Interface Module

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