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This article reviews the challenges brought forth by the advent of 40G transmission and describes the importance of each test, as well as where and how they should be performed.

Learn about a new approach that retains the benefits of a standard OTN signal, such as frame structure and line speed, while adopting a cost-efficient mapping solution for 10 GigE LAN PHY client signa...

The key trend is toward IP-fixed/mobile network convergence, which significantly stresses transport backbones that have been built on 10G wavelengths, and is driving the need for upgrades to 40G and 1...

Changes in modulation formats bring huge challenges to manufacturers and carriers, as these modulation schemes cannot be characterized using traditional test instruments.

EXFO's SyncWatch-110 provides support for legacy synchronization as well as new Ethernet-based synchronization—in a single, compact package.

This article examines a case in point in which the CENX and EXFO partnership has created an end-to-end, service-assurance solution that provides visibility to the end user over multiple networks.

Synchronization distribution has been widely available through the physical layer of all of these technologies, and equipment vendors and network operators alike have had the luxury of utilizing this ...

In response to the telecom industry’s need for increased bandwidth, the IEEE High Speed Study Group (HSSG) was formed to commence development of both the 40 GigE and 100 GigE standards.