Data Communication Solutions
Carrier Ethernet Access | Mobile Backhaul | Multiservice Access | Last Mile (Local Loop) | Voice Trunking Gateway | TDM Pseudowire | TDM Converters

offers TDM pseudowire products that enable cellular backhaul of GSM and CDMA traffic over Ethernet and DSL connections, deployment of leased line services via Ethernet transport networks and telephony trunking over PSN backbones.

TDM pseudowire is a standardized technology for transporting E1, T1, E3, T3, STM-1, and OC-3 circuits across the packet-switched network, transparent to all protocols and signaling. TDM pseudowire takes TDM data streams and converts them into packets for transmission over IP, Ethernet and MPLS-based networks. At the destination site, the original bit stream is reconstructed when the headers are removed, payload is concatenated, and clock regenerated, while ensuring very low latency.


TDM Pseudowire Access Gateway: 4 x T1/E1, FE or GbE over Ethernet/IP

Main Features

  • Enables legacy service continuity over packet switched networks
  • Promotes CapEx savings by supporting all TDM pseudowire standards in a single device
  • Reduces OpEx by minimizing the number of leased lines required for network access
  • Supports legacy PBX, including proprietary features and signaling
  • Supports TDM service performance requirements by ensuring low latency and minimizing packet loss and jitter
  • Enables migration of cellular services to next-generation networks by allowing delivery of 2G/3G traffic over packet transport
  • Enhances performance with increased pseudowire capacity and service management capabilities
  • Comprehensive support for pseudowire/circuit emulation standards including TDMoIP, CESoPSN, SAToP, CESoETH and HDLCoPSN
  • Industry-leading adaptive clock recovery mechanism suitable for cellular backhaul over packet-based networks
  • Carrier-class/environmentally hardened device
  • Extensive OAM and performance monitoring capabilities
  • Three auto-detecting Gigabit or Fast Ethernet SFP- or UTP-based ports, and one, two or four TDM service ports