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What is a SONET?
Synchronous Optical NETwork is a transmission system for high-speed digital traffic. It is a method for communicating digital information using lasers or LEDs over optical fiber.
total search18 articles
2005-08-02 TCXO touts tight stability, small size
Fordahl said it has introduced the industry's smallest wide temperature range Stratum III and Sonet temperature compensated crystal oscillator.
2001-03-29 Synchronizing Network Elements On SONET/SDH Rings
This paper describes the complexity of the high-speed networks by analyzing different popular architectures and takes a look at the challenges in synchronizing various systems, such as ADMs, terminal multiplexers, cross connects, line cards and other network elements.
2001-07-03 Synchronizing Network Elements On SONEH/SDH Rings
This paper describes the complexity of the high-speed networks by analyzing different popular architectures and takes a look at the challenges in synchronizing various systems, such as ADMs, terminal multiplexers, cross connects, line cards and other network elements.
2006-04-03 Switching lines play up Metro Ether
Cisco Systems Inc. and Extreme Networks Inc. are expanding their metro Ethernet switching strategies to meet carriers' need for resiliency.
2004-06-21 Startup combines protocols for service aggregation
Mangrove Systems debuted a traffic aggregation system that unifies Ethernet and Sonet with a unique double-encapsulation scheme.
2003-12-16 SONET/SDH framers gird for multiservice
New framer ICs bring two important innovations to the SONET/SDH market that distinguish them from their predecessors: virtual concatenation and generic framing protocol.
2004-07-01 SONET CMOS transceiver hits 10Gbps
Xignal develops a single-chip full-rate 4:1 Serdes chip consuming <1W in a standard 0.13?m CMOS technology.
2004-11-02 Solution provides ITU-T O.172 jitter accuracy maps, NG SONET capability
Agilent announced what it claims as the first test solution to provide repeatable jitter with ITU-T O.172 jitter accuracy maps and advanced NG SONET capability.
2004-01-27 Parama IC reduces equipment, network costs
Parama Networks has introduced a system level solution for the design of next-gen SONET/SDH transport equipment.
2004-07-26 Opnext hands over transceiver production to Fabrinet
Manufacturing services company Fabrinet has inked an agreement with optical transceiver developer Opnext, under which Fabrinet will handle the manufacturing of Opnext's 2.5- and 10Gbit optical transceivers for Sonet/SDH and WDM applications.
2002-03-25 NEC ATM, POS chip packs four 622Mbps SONET/SDH framer channels
The 5PD98413 ATM and POS PHY chip from NEC integrates four 622Mbps SONET/SDH framer function channels on one chip, enabling faster 3G mobile basestations, DSLAM, and WAN edge equipment.
2003-07-01 Meeting requirements of multiservice nets
Multiservice network requires scalable network devices supporting a wide range of interfaces, features, and services.
2004-01-16 Innovation thrives in optical transports
Our contributors show that while optical-transport markets may still be stuck in the doldrums, innovation continues in making that transport as efficient as possible.
2004-10-01 Fine-grain switching goes from core to edge
Lowering capital expenditures in providing mixed-voice/data services require finer traffic grooming closer to the network edge.
2005-04-11 Exar to acquire Infineon's optical networking line
Exar Corp. has entered into a definitive agreement with Infineon Technologies North America Corp. in which Exar has agreed to acquire for cash a significant part of Infineon's optical networking(ON) business unit.
2002-05-27 Exar multifunction, multichannel PHY interface chips debut
Exar Corp. has launched four single-chip PHY ICs that combine an LIU with a desynchronizer and a jitter attenuator, and four additional LIU ICs with just the jitter attenuator.
2004-04-01 Blast through the barriers to Ethernet in the metro
To deliver truly 'carrier-worthy' Ethernet over SONET/SDH, aggregation techniques must be combined with adequate flow control.
2005-04-29 Acterna rolls out testing solution for SONET/SDH networks
Acterna's new multi-port, multi-technology and multi-channel solution enables carriers to test for efficient and reliable handling of voice, data and video traffic over SONET/SDH networks.
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