But now, there are several plesiochronous digital hierarchy (PDH) network ports in the world. A key issue to operators and providers is realizing the transition or update of the network. Ethernet over ...

The longevity of Plesiochronous Digital Hierarchy/Synchronous Digital Hierarchy (PDH/SDH) communications networks in the utility industry is remarkable. Used for decades to monitor and control the ...

Sonet/SDH and plesiochronous digital hierarchy (PDH) systems can take advantage of a timing-chip duo to achieve exceptional performance. The ZL30106 digital phase-locked loop ...

Ethernet dominates the local-area network (LAN) space. However, carriers continue to use legacy plesiochronous digital hierarchy (PDH) T1/T3 formats. Also, Sonet and synchronous ...

San Jose, Calif., July 8, 2004 ¦¡Altera Corporation (NASDAQ: ALTR) today announced the addition of Aliathon to the Altera Megafunction Partners Program (AMPP¢â). Customers now have access to ...