SYNCHRONOUS EQUIPMENT
STRATUM 3 CLOCK UNIT WITH HF OUTPUTS – SY15-S3
SY15-S3
Date: 5/15/2001
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INTRODUCTION
The SY15-S3 is an accurate time and frequency source, with
high frequency, outputs that has been designed as a
subsystem level module. The module is designed to work
within ATM, SONET, SDH, and wireless systems
environments where synchronization is vital. The SY15-S3 is
an enhanced version of SY01 and is designed for Stratum 3
applications, 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
A synchronization solution for timing, jitter and wander concerns in a single module.
Complies with ITU-T Recommendations G.813 and ETSI-ETS 300 462-4 and Bellcore GR-1244-CORE for
Stratum 3 applications.
Supports three modes of operation: Locked to any of References (1-5), Holdover and Free-run.
Accepts reference inputs from up to five independent sources from
8 kHz to 77.76 MHz.
Provides three high frequency outputs
up to 622.08 MHz.
Loop filtering utilizing application specific software in the digital signal processor (DSP).
Continuously monitors and evaluate input reference signals.
Creates a history buffer for Holdover mode operation.
Manual or Automatic selection between timing modes.
Alarm and status signal.
Host interface and JTAG port.
Small dimensions of 1.8 x 1.8 x 0.60 inch.
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APPLICATION
The SY15-S3, a Synchronous Equipment Clock (SEC), fulfills clock regeneration function for STRATUM 3
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 designs where a high frequency outputs are required. Wherever a Timing unit with high
performance specifications is required, the SY15-S3 can be embedded within the network system and provide all
necessary frequencies and interfaces.
RALTRON ELECTRONICS CORP.
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10651 N.W.19 St
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Florida 33172
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U.S.A.
Tel: 305 593-6033
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Fax: 305-594-3973
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e-mail: sales@raltron.com
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Internet: http://www.raltron.com
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RALTRON [ Raltron Electronics Corporation ]
