SY15-S3 Raltron, SY15-S3 Datasheet

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SY15-S3

Manufacturer Part Number
SY15-S3
Description
Manufacturer
Raltron
Datasheet
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.
SY15-S3
Tel: 305 593-6033 ! ! ! ! Fax: 305-594-3973 ! ! ! ! e-mail: sales@raltron.com ! ! ! ! Internet: http://www.raltron.com
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
Provides three high frequency outputs
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.
APPLICATION
RALTRON ELECTRONICS CORP. ! ! ! ! 10651 N.W.19
STRATUM 3 CLOCK UNIT WITH HF OUTPUTS – SY15-S3
up to 622.08
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
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.
MHz.
INTRODUCTION
ATM,
th
SONET,
8 kHz to 77.76
St ! ! ! ! Florida 33172 ! ! ! ! U.S.A.
SYNCHRONOUS EQUIPMENT
SDH,
MHz.
and
wireless
Date: 5/15/2001
systems

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SY15-S3 Summary of contents

Page 1

... 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. ...

Page 2

... The history data is determined while the device is locked to an external reference signal. The stability of the output signal in holdover mode depends primarily on the stability of on-board oscillator and environment effects where the clock is mounted. The SY15-S3 uses an OCXO as an on-board oscillator but other types of oscillators are available. ...

Page 3

... For other standards please contact the factory. Control The external control is available for the user to control the operation of the SY15-S3. The three external inputs CNT1, CNT2 and CNT3 provide this feature. Below, the truth table shows behavior of the SY15-S3 module according to the control inputs states ...

Page 4

... Drift DPLL bandwidth Lock Time Lock accuracy RALTRON ELECTRONICS CORP 10651 N.W.19 Tel: 305 593-6033 ! ! ! ! Fax: 305-594-3973 ! ! ! ! e-mail: sales@raltron.com ! ! ! ! Internet: http://www.raltron.com STRATUM 3 CLOCK UNIT WITH HF OUTPUTS – SY15-S3 2”(D)x2”(W)x0.75”(H) Hermetically Sealed Metal box 1.8”(D)x1.8”(W)x0.60”(H) Module on PCB 5VDC Regulated +3 ...

Page 5

... OUT1 OUT1 GND PIN ASSIGNMENT On the picture below it is shown the pin-out for the SY15-S3. The design is done in such a way that is can support basically any other pin-out without changes in the hardware. For other pin-out requirement please contact the Raltron. Pin # Name ...

Page 6

... MECHANICAL DIMENSIONS Figure 3. shows the mechanical dimension of the SY15-S3 module. The module can be supplied in two different types of packaging: - Metal box - Module without packaging The dimensions shown on figure are valid for first and second type of packaging, the actual dimensions for the third type are 1.8 x 1.8 x 0.60” ...

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