Solution is designed for TDM circuit emulation

TranSwitch Corp. announced the PacketTrunk-4 Plus, a single-chip solution for implementing circuit emulation service (CES) interfaces and systems. CES, which is complementary to VoIP, offers a migration path for transporting T1, E1, T3 and E3 circuits over packet-switched networks (PSN).

PacketTrunk-4 Plus allows the implementation of multi-port CES gateway functionality for carrier and enterprise applications across the network.

This single-chip solution incorporates G.823/G.824 "synchronization interface" (<15 ppb, 1s) clock recovery, encapsulation (IPv4, IPv6, MPLS, L2TPv3, Ethernet), jitter compensation, Layer 2/3/4 QoS support, and support for transport of structured and unstructured TDM signals over a PSN. The device serves as a building block for CES over IP, MPLS and switched Ethernet networks.

Typical applications include: cellular backhaul and/or network synchronization; TDM services over metro Ethernet, CATV, or broadband wireless networks; IP-DSLAM synchronization; enterprise private line/toll bypass over an IP/MPLS MAN; HDLC-based data trunking over IP/MPLS and SS7 transport over IP/MPLS.

The PacketTrunk-4 Plus is compliant with industry specifications and standards including Internet Engineering Task Force Pseudo-Wire Edge-to-Edge Emulation, Internet drafts for TDMoIP, Structure Agnostic TDM over Packet and Circuit Emulation Services over Packet Switch Networks, and derivative standards and specifications from the Metro Ethernet Forum, ITU-T and the MPLS/Frame Relay Alliance.

PacketTrunk-4 Plus is now available with an RTOS-independent hardware-abstraction layer, evaluation kit, TDMoIP calculator spreadsheet, BSDL and IBIS models, and documentation. The product is backward compatible to the first generation PacketTrunk-4. The device is packaged in a 256-pin 27-by-27mm plastic ball-grid array. Power supply voltages are 1.5V core and 3.3V I/O.