Adtran Dual E&M Plug-In Module
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Product Information for Adtran Dual E&M Plug-In Module

Highlights for Adtran Dual E&M Plug-In Module

  • Product Type:CSU/DSU Module
  • Form Factor:Plug-in Module

Marketing Information

E&M module provide a quick and simple upgrade path for TSU multiplexers requiring support for PBX's, KSU's, analog telephones, dial-up modem pools, fax machines and leased line modems.

Applications involving 2- or 4-wire E&M tie lines are supported in the TSU multiplexer with the E&M module. In addition to supporting Type I, II and V E&M signalling, the E&M module support legacy leased line modems in Transmit Only (TO) mode. Each dual port plug-in module supports the 2713Hz loop back tone.



  • Ports: 2 x 8-pin RJ-45 Physical
  • Environmental Conditions

  • Humidity: Up to 95% Non-condensing Relative Humidity
  • Temperature: 32F (0C) to 122F (50C) Operating
  • General Information

  • Product Type: CSU/DSU Module
  • Manufacturer Part Number: 1200105L3
  • Manufacturer Website Address:
  • Manufacturer: Adtran
  • Product Name: Dual E&M Plug-In Module
  • Brand Name: Adtran
  • I/O Expansions

    Media & Performance


    Additional Information

    TLP Levels:

  • -17dB to +7dB - Rx TLP (in 1 dB steps)
  • +13dB, +6dB to -17dB Tx TLP (in 1 dB steps)

    Other Features:

  • 2713 Hz Loopback capable

    Signalling Modes:

  • E&M : E-lead originate device, detects M-lead
  • Transmit Only

    Physical Characteristics

  • Dimensions: 1.25" Height x 7" Width x 10" Depth
  • Weight: 1.50 lb
  • Form Factor: Plug-in Module
  • Power Description

    Management & Protocols

  • Management:
  • Front panel or VT-100 terminal setup and monitoring through TSU Multiplexer
  • PC based configuration support via T-Watch PRO software
  • Technical Information

  • Impedance: 600 Ohm
  • Operating Mode: E&M 4-wire
  • Warranty

  • Standard Warranty: 5 Year