Adtran 1180207L4

SKU: 1959 Category:



The Dual FXO/DPT/TO access module provides for two individual interfaces between a Total Access 1500 Pulse Code Modulation (PCM) backplane and a 2-wire voice frequency (VF) transmission and signaling facility.

Additional information

Weight 0.00 lbs
Dimensions 0.00 × 0.00 × 0.00 in


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  • The features of the Total Access 1500 Dual FXO/DPT/ TO include the following:


  • Nominal 600 ohm or 900 ohm (+2.16 µF) 2-wire VF interface with DC isolation
  • Network Build Out Capacitance (NBOC) settings from 0 µF to 126 µF
  • Ring Ground Disable (RGD) when in Ground Start or TR08 Universal Voice Grade
  • Trunk Processing Busy/Idle selection
  • Provides loop reverse battery signaling for DID PBX extensions (DPT mode)
  • Transmit and Receive attenuation settings that are adjustable in 0.1 dB increments
    • TX = -7.0 dB to +9.0 dB
    • RX = -9.0 dB to +0.0 dB


  • Supports the following protocols:
    • TR08 Single Party (SP)/POTS (LS)
    • TR08 Universal Voice Grade (UVG) (LS)/SPOTS (LS/GS)


  • Compliant with Voice Frequency characteristics and signaling of Telcordia TR-NWT-000057
  • Supports Calling Number Delivery and other common (CLASS™) service offerings according to TR TSY 000030 Section
  • Extended temperature range: -40°C to 65°C
  • UL 60950 compliant
Adtran 1180207L4 Total Access 1500 Dual FXO DPT TO Access Module