SYNCHRONOUS EQUIPMENT
STRATUM 3/3E CLOCK UNIT – SY10
SY10
Date: August 30, 2002
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INTRODUCTION
The SY10 - an accurate time and frequency source
that had been designed as a subsystem level module.
The module is designed to work within ATM, SONET,
SDH, and wireless systems where synchronization is
vital. The SY10 is an excellent synchronization
solution for timing, with jitter and wander compliance
per the specified within ITU-T Recommendations
G.812/G.813 and Bellcore GR-1244-CORE. The
SY10 is an enhanced version of SY01 and is
designed for Stratum 3 and Stratum 3E, but also
holds certain features that can make it useful for
SONET Minimum Clock (SMC) or other kinds of
system clocks.
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FEATURES
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A synchronization solution for timing, jitter and wander concerns in a single module.
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Complies with ITU-T Recommendations G.812/813 and Bellcore GR-1244-CORE for Stratum 3 and Stratum 3E
applications.
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Supports modes of operation: Locked, Holdover and Free-run.
√
Accepts reference inputs from up to six independent sources from 8KHz to 77.76MHz
√
Provides up to 3 output from 8KHz to 77.76MHz (Two user select and one fixed at 8KHz)
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Loop filtering utilizing specific software application in the digital signal processor (DSP).
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Continuously monitors and evaluate input reference signals.
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Phase build-out for output clock.
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Creates a history buffer for Holdover mode operation.
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Alarm and status signals and messages.
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Host interface SPI for configuring and remote monitoring.
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Supports Master/Slave configuration of two SY10 with minimum phase error between two clocks.
√
Provides “hit-less” switching during switching between the clocks.
√
Pin compatible with 18 pins SY01 module.
√
Small dimensions of 1.82 x 1.82 x 0.7 inch. (0.60 inch with no mechanical cover)
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APPLICATION
The SY10, a Synchronous Equipment Clock (SEC), fulfills clock regeneration function for STRATUM 3 and 3E
equipment for: ATM, SDH, PDH, and SONET networks. It was designed for network system manufacturers such as:
Access Switches, Core Switches, Cross Connects, Digital Multiplexers-Exchangers, and SDH/SONET equipment.
The unit is also suitable for PCS, WLL, and Wireless Base Stations. Wherever a Timing unit with high performance
specifications is required, the SY10 can be embedded within the network system and provide all necessary
frequencies and interfaces.
RALTRON ELECTRONICS CORP. ! 10651 N.W.19th St ! Florida 33172 ! U.S.A.
Tel: 305 593-6033 ! Fax: 305-594-3973 ! e-mail: sales@raltron.com ! Internet: http://www.raltron.com
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