Synchronize your Network!
When a precise frequency or exact time stamping is required to enable critical functions in your network, an accurately synchronized network becomes crucial to your core business. This is especially the case in Telecom, Industrial, and Utility networks, where network optimization is part of daily life.
Synchronization is the process of aligning the time scales of transmission and switching equipment, so equipment operations occur at the correct time and in the correct order. Synchronization requires the receiver clock to acquire and track the periodic timing information in a transmitted signal.
The transmitted signal consists of data that is clocked out at a rate determined by the transmitter clock. Signal transitions between zero and peak values contain the clocking information and detecting these transitions allows the clock to be recovered at the receiver. The recovered clock is used to write the received data into a buffer, also called an elastic store or circular shift register, to reduce jitter. The data is then read out of the buffer onto a digital bus for further multiplexing or switching.
Synchronization at AimValley
Synchronization has been a fundamental technology building block within AimValley for many years already. Practically every service provider network requires it, not because networks require synchronization but mainly to provide, (at the edge of the network), a frequency or phase/Time of Day synchronization signal to end-customers.
The performance of the traditional wired T1/E1, SONET, and SDH networks are based upon constrained clock control theory and PLL design and deliver a frequency synchronization to the edge of the network. Also, Circuit Emulated Services (CES) require frequency synchronization at the edge of the network to recover the emulated service via Differential Clock Recovery (#dcr) methods.
In today’s networks, end equipment, like 4G and 5G base stations, require Time of Day (ToD) synchronization which allows synchronizing all base stations to a common wall clock. Also, standards like Audio Video Bridging (#AVB) and Time Sensitive Networking (#TSN) require ToD synchronization at the edge of the network to overcome Packet Delay Variation (#PDV) and recover signals based on a provisioned ‘presentation time’.
The synchronization signal is disciplined by electronic circuits to provide the frequency accuracy, stability, phase movement control, wander filtering, and edge jitter (phase noise) levels specified in volumes of various Standards documents. Each ‘end customer service’ has a specific set of performance requirements detailed in these documents. This performance is defined by the various international standards bodies and is well understood.
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Synchronization Standards
Within the synchronization architecture, a vast number of standards have been defined.
AimValley's Synchronization Expertise
AimValley provides a wide range of expertise regarding synchronization. From helping you to interpret and understand the various Standards to architectural support for:
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Talk to one of our engineers to find out how AimValley's Synchronization solutions help you with your next turnkey product development.