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Solution provides ITU-T O.172 jitter accuracy maps, NG SONET capability

Posted: 02 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:agilent technologies? sonet/sdh? omniber optical transport network? omniber otn? ng sonnet?

Agilent Technologies Inc. announced what it claims as the first test solution to provide accurate and repeatable jitter with ITU-T O.172 jitter accuracy maps and advanced next-generation SONET/SDH (NG SONET) capability within a single instrument.

According to the company, enhancements to its OmniBER optical transport network (OTN) family of communications performance analyzers reduce the cost of ownership for chipset designers, network equipment manufacturers (NEM) and service providers by integrating NG SONET and jitter into one instrument.

The OmniBER OTN now supports interface rates up to 2.5Gbps and 10Gbps. Agilent said it is the only test instrument to combine generic framing procedure (GFP), virtual concatenation (VCat), Ethernet payload, and link capacity adjustment scheme (LCAS) measurement capabilities with the most accurate and repeatable jitter, plus O.172 jitter accuracy maps for measuring 10Gbps SONET/SDH and G.709 OTN jitter.

"Manufacturers have been pushing the limits to reduce the size and cost of pluggable optics, such as XFP and SFP, and an unintended consequence is potential increased jitter," shared David Taylor, the company's chairman for its ITU-T O.172 Jitter Study Group. "Jitter leads to data errors, which can cost money in wasted bandwidth due to re-transmission and lost data. In addition to jitter measurement, our customers require NG SONET capabilities to support data transport across core and metro SONET/SDH networks and with Ethernet payloads, in particular."

"Agilent's new integrated OmniBER OTN with NG SONET and jitter lowers capital equipment costs and provides faster insight into NG SONET design conformance, aiding multi-vendor interoperability for network manufacturers," Taylor added.

The OmniBER OTN provides ITU O.172 Appendix VII-based accuracy maps as standard on jitter products, plus a receiver-only fixed accuracy error of <15mUI at 10Gbps. According to the company, this gives much greater assurance of conformance to the 100mUI industry standard.


The OmniBER OTN is a second-generation NG SONET/SDH and jitter analyzer, scalable to 40Gbps, and is designed to have extremely low intrinsic jitter, a key enabler of greater measurement accuracy. The device provides both functional and jitter conformance testing in a single product.

The J7233A and J7231B OmniBER OTN are already available at prices starting from $86,198. The J7233A is available up to 2.5Gbps with NG SONET/SDH plus jitter, and the J7231B is available up to 10Gbps with NG SONET/SDH plus jitter.

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