Sdu-2000E Synchronization Distribution Unit - Symmetricom SSU-2000e User Manual

Chapter 1 Product Overview

SDU-2000e Synchronization Distribution Unit

Figure 1-12. SDU-2000e Synchronization Distribution Unit
Each expansion shelf in the system can support an additional 10 summed pair
Output modules, 2048 kHz, Composite Clock (CC) or framed 2048 kbit/s (E1) or
DS1 Output modules in any combination and two Buffer modules. Each pair of
Output modules produces 20 redundant or protected outputs. Each expansion
chassis can provide 100 summed (1:1 protected) output signals. Up to four
expansion chassis can be daisy chained together to produce 400 summed output
signals for large scale system applications.
All output signals generated by the Output modules in each expansion shelf
conform to specifications for International, European and North American
applications as a primary reference source (PRS) and slave clock (SSU/TSG). The
SSU-2000e, which drives the SDU-2000e expansion chassis, allows the integration
of a variety of synchronization reference schemes including GPS and land line
2048 kbit/s (E1)/DS1 network sources.
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