| Course | Title | Description |
| Sync 401 | Future Directions in Network Synchronization |
What is the best reference source for sync and timing? Currently, GPS is the leading candidate, but other options are in development. First, we'll take a look at Galileo, a proposed satellite constellation designed to complement, or even replace, GPS.
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| Sync 402 | Evolving Components for Synchronization |
Sync Status Messaging (SSM) and Asynchronous Transfer Mode (ATM) are addressed in Sync 402. In chapter 1, we'll look at SSM's role in SONET networks - primarily, this technique is used to prevent timing loops. In chapter 2, we'll address the often-overlooked requirements for sync in "asynchronous" networks, such as ATM and other cell/packet networks.
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| Sync 403 | Synchronization for New Services |
Recently, we have seen significant strides in technologies. The synchronization requirements for Internet Protocol (IP), Dense Wavelength Division Multiplexing (DWDM) and emergency location services (E-911) are explored in Sync 403. Is there another hot topic you'd like to see included here? Email your suggestions to syncu@symmetricom.com.
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| Sync 404 | Synchronization Implications of FTTH and FTTP Architectures |
This course will focus on ATM passive optical networking applications and the associated synchronization requirements. Synchronization is a key element for broadband architecture deployments designed to support real time services. Real time services depend on high-quality synchronization to ensure smooth transmission. As traffic passes across the network boundaries between the access network and the supporting transport and switching networks, synchronization to a common, accurate clock is needed to minimize slips - slips that cause packet loss or retransmission - and to reduce buffering, which introduces additional latency and jitter. APONs provide support for high quality of service (QoS) for all types of traffic that real time broadband access technology must transport.
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| Sync 405 | Synchronization for Improving VoIP Quality |
This course examines influences that contribute to the Quality of Service (QoS) issues surrounding Voice over Internet Protocol (VoIP) and the deployment of Next Generation Networks (NGNs).
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| Sync 406 | Synchronization in UMTS (3G) Networks |
This course begins by briefly describing synchronization in 2G networks and it goes on to introduce the UMTS architecture, the various UMTS synchronization standards and the synchronization issues facing 3G operators. It also presents examples of best practices for UMTS network synchronization based on experience gained from service providers who have implemented 3G networks.
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