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SONET/SDH (14 results)
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ZDNet Dictionary Definition
- SDH
- Synchronous Digital Hierarchy The European counterpart to SONET. See SONET.
- Full SDH Definition >>
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- Converged Optical Ethernet: OnSite OS-10 Multi-Services Over SDH Provisioning
- Most service providers have existing SDH networks that have proven indispensable in serving revenue-critical TDM-based private line services. SDH is firmly established as the technology of choice for general-purpose transport in telecom networks because of its flexibility, reliability, ease of provisioning and multi-vendor interoperability. The advancements of SDH technology, embodied...
- White papers 2009-01-26
- Building High-End Ethernet Functionality Into SDH Networks
- For now, NG-SDH seems to have its roots firmly entrenched in Service Provider networks. Given the ubiquitous presence of SDH in the metro, incrementally offering high-end Ethernet services over this SDH network would be the best way of packetizing the metro. This approach ensures that the Service Provider can start...
- White papers 2008-03-05
- RIC-155GE Connects IP DSLAM Infrastructure Transparently Over Dedicated Leased SDH Circuits
- Telefonica Deutschland is a German provider of integrated data and telecommunication solutions for business users. The company wanted to transport any Ethernet traffic transparently over conventional SDH lines. The challenge was to enable broadband services, including ADSL 2+, and multimedia services, such as Triple Play, on an advanced, Ethernet-based DSL...
- Case studies 2005-10-09
- Extended Cross-Connect Capacity With Cisco ONS 15454 SDH Solutions
- Cisco ONS 15454 SDH solutions from Cisco Systems can be used in a multichassis configuration to offer extended cross-connect capacity. This paper describes this type of application and provides technical information about it. The carrier-class Cisco ONS 15454 SDH Multiservice Provisioning Platform MSPP solution offers unique benefits to service providers...
- White papers 2005-09-01
- Application Series SDH Testing and Maintenance
- SDH networks have been designed to transport PDH, T-carrier, and ATM payloads in an efficient, economical way by providing a Management System with maintenance, protection, and routing functions that fulfill the needs for a reliable transport technology with increased bandwidth. This paper describes the tools built into the SDH standard...
- White papers 2003-09-18
- Integrating SDH and ATM in UMTS (3G) Access Networks
- The deployment of cellular UMTS (Universal Mobile Telecommunications Systems, better known as 3G) is one of the most difficult challenges facing today's service providers network planning experts. They need to juggle with immature technologies, limited financial resources and uncertainties about future market demand. Furthermore, to make 3G services economical while...
- White papers 2003-02-01
- SDH Telecommunications Standard
- SDH Synchronous Digital Hierarchy is a standard for telecommunications transport formulated by the International Telecommunication Union ITU, previously called the International Telegraph and Telephone Consultative Committee CCITT. SDH was first introduced into the telecommunications network in 1992 and has been deployed at rapid rates since then. It's deployed at all...
- White papers 2001-09-06
- SDH Telecommunications Standard Primer: What is SDH?
- This document is intended as an introductory guide to the Synchronous Digital Hierarchy SDH multiplexing standard. Standards in the telecommunications field are always evolving. Information in this SDH primer is based on the latest information available from the ITU-T standardization organization. Use this primer as an introduction to the technology...
- White papers 2001-08-03
- TDM Traffic Over SDH and IP
- To address growing business demand, Shanghai Mobile is constantly adding more and more billing sites, even as transmission resources become increasingly expensive. The challenge was to find a way to transmit mission critical data over an IP backbone without sacrificing reliability and QoS guarantees. The solution was RAD's Megaplex-2100 integrated...
- Case studies
Additional Resources
- Packet Transport Solutions for Transportation Network Evolution: Increase Flexibility and Reliability While Optimizing the Convergence of New Ethernet/IP Services
- Transportation service operators manage multiple networks that enable a variety of operations and business applications. The majority of these networks were built on Time Division Multiplexing TDM, Synchronous Optical Network SONET, Synchronous Digital Hierarchy SDH, Asynchronous Transfer Mode ATM, or frame relay technologies. But Ethernet/IP-based applications are integrated to support...
- White papers 2009-05-15
- A 200-Mbps 2-Gbps Continuous-Rate Clock-and-Data-Recovery Circuit
- With the aid of wave-length division multiplexing technique, several optical communication systems, such as SDH/SONET and 10 GBased Ethernet, allow the information to be exchanged with different bit rates at the same time in the optical domain. The retiming circuits have to detect the bit rate from the incoming data...
- White papers 2009-02-27
- Multi-touch on the G1 (despite Apple's patent)
- Got a T-Mobile G1 and incensed that you can't run multi-touch on it? Well now you can. While Apple has threatened to flex its legal muscle against anyone that steals their IP (to borrow Tim Cook's words), it's possible to enable multi-touch today on an Android device...
- Blog posts 2009-02-03
- Migration to Ethernet Rings: High Capacity, High Availability Mobile Backhaul Aggregation Transport
- This paper provides guidelines for mobile operators who wish to deliver higher capacities over their aggregation wireless backhaul networks. The paper will show how wireless Ethernet Ring topologies facilitate much better availability than typical SONET/SDH and how cost-per-bit reduction and improved overall user experience can be achieved. In addition the...
- White papers 2008-09-01
- TheftNotifier for Symbian 1.0 (Mobile)
- TheftNotifier is an innovative lost & found anti-theft software program that sends the thief's contact number, location and other details containing IMEI, IMSI, Network Name, Network Identity, Cell ID, Country Code and Area Code to pre-defined mobile phone numbers when your device is lost or stolen! The program works quietly...
- Software downloads 2008-08-26
- RAD'S Ethernet NTU's Provide Interoute With End-to-End Customer Visibility
- Interoute owns and operates Europe's largest Next Generation network. The company wanted to deliver managed Ethernet services with challenging end-to-end SLAs over a network that spans several providers. Interoute's Ethernet Flex and Ethernet Clear offer customers private connections between sites, and it is here where RADs ETX-202 Ethernet network termination...
- Case studies 2008-05-22
- TheftNotifier For S60 v2.1 (Mobile)
- Mobile phone theft has been one of the common crimes on the street. With this software, you are adding some security to your mobile phones.TheftNotifier is an innovative lost & found anti-theft software program that sends the thief''s contact number, location and other details to pre-defined mobile phone numbers when...
- Software downloads 2008-03-22
- Cisco Network Solutions for the Telco DCN: SONET/SDH OSI Environments
- This paper is directed to Competitive Local Exchange Carriers CLECs, incumbent Local ExChange Carriers ILECs, and Post, Telephone and Telegraphs PTTs, collectively referred to as telcos short for telephone companies. This paper describes Cisco network solutions for transporting data between Synchronous Optical Network SONET and Synchronous Digital Hierarchy SDH and...
- White papers 2008-01-03
- Nortel Network Case Study: IT-AUSTRIA
- Financial institutions are increasingly centralising their systems and processes, requiring large volumes of data to be transferred from remote branches to major data centres. This placed new demands on the infrastructure of service provider iT-AUSTRIA, which delivers data centre services as well as voice and data services to high-profile financial...
- Case studies 2007-10-16
- An Algorithm for Traffic Grooming in WDM Optical Mesh Networks With Multiple Objectives
- This paper studies a traffic grooming in Wavelength-Division Multiplexing WDM mesh networks for the SONET/SDH streams requested between node pairs. The traffic could be groomed at the access node before converting to an optical signal carried in the All-Optical network. The paper designs a virtual topology with a given physical...
- White papers 2007-10-08
- MobiCam WebCam 1.8 (Windows)
- Use your mobile phone as a Webcam. Connects via Bluetooth. Supports : Nokia N70, N90, 3230, 6600, 6620, 6630, 6260, 6630, 6680-2, 7610; Panasonic X700/X800; Samsung SDH-D720; Lenovo P930. MobiCam is compatible with any Internet telephony systems (Skype, GoogleCall, Yahoo) as well as any Instant Messengers (MSN, Yahoo, ICQ, AIM)....
- Software downloads 2007-09-21
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