Telrad Does EOPDH

SHELTON, Conn. -- Telecom vendors can now rapidly deploy EoPDH (Ethernet over Plesiochronous Digital Hierarchy) technology through CPE (Customer Premises Equipment) and an AMC (Advanced Mezzanine Card) module developed jointly by TranSwitch® Corporation (NASDAQ: TXCC - News), a leading provider of carrier-class semiconductor solutions, and Telrad Networks, a carrier-grade communications equipment vendor. The TAG-10c, available from Telrad, is a 1U CPE platform for EoPDH at the customer site, and the TAG-10a is a standard AMC module, easily integrated into telecommunications equipment.

Telrad provides next generation solutions for connectivity between TDM networks and all IP networks. The TAG-10a and TAG-10c can be used for wireless backhaul and SMB/MTU/DSLAM access and these products are based on TranSwitch's EtherMap®-PDH device. These solutions allow the transport of native Ethernet frames over the well-established PDH (E1/T1/J1, wideband DS3 or channelized DS3) telecommunications infrastructure, which is particularly valuable to carriers worldwide. "EoPDH paves the pathway for interoperability and the gradual migration of carriers to Ethernet networks," said Meir Bass, CTO of Telrad Networks. "Our TAG-10a and TAG-10c are capable of transporting legacy and next-generation Ethernet services simultaneously over a channelized DS3 signal. This unique functionality, enabled by TranSwitch's EtherMap-PDH, will allow carriers to offer new revenue-generating services without cannibalizing legacy ATM/FR/leased line services."

TranSwitch and Telrad are pioneers in the standards-compliant EoPDH technology, bringing cost-effective Ethernet services closer to the subscriber. This technology allows the complete reuse of existing infrastructure, both equipment and physical medium like copper or fiber. EtherMap-PDH, using GFP/VCAT/LCAS, is a carrier-grade, VLSI device with a robust protocol, better latency, and it delivers higher network availability when compared to ML-PPP.

TranSwitch Corp. (Nasdaq: TXCC)

Telrad Networks Ltd.