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PDF SY01-S3T Data sheet ( Hoja de datos )
| Número de pieza | SY01-S3T | |
| Descripción | SYNCHRONOUS EQUIPMENT TCXO BASED STRATUM 3 CLOCK UNIT | |
| Fabricantes | Raltron Electronics Corporation | |
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SY01-S3T
SYNCHRONOUS EQUIPMENT
TCXO BASED STRATUM 3 CLOCK UNIT – SY01-S3T
Date: April 1 , 2002
• INTRODUCTION
The SY01-S3T is an accurate time and frequency source that
has been designed as a module level subsystem.
The module is designed to work within ATM, SONET, SDH, and
wireless systems where synchronization is vital.
The SY01-S3T is an excellent TCXO based synchronization
solution for timing, designed for Stratum 3 applications while
maintaining certain features that can make it useful for, SONET
Minimum Clock (SMC) or other kinds of system clocks.
• FEATURES
An economically designed TCXO/Software 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 four modes of operation: Locked to Reference 1, Locked to Reference 2, Holdover and Free-run.
Accepts reference inputs from two independent sources from 8 kHz to 77.76 MHz.
Provides two outputs up to 77.76 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.
Alarm and status signal.
Host interface and JTAG port.
Small dimensions of 1.80X1.80X 0.65 inch (open pkg)
• APPLICATION
The SY01-S3T performs clock regeneration as a Synchronous Equipment Clock (SEC), or STRATUM 3 in ATM, SDH,
PDH, and SONET networks. It is designed for manufacturers of network equipment, especially 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
SY01-S3T can be integrated into the network system and provide all necessary frequencies and interfaces. The input
stage can receive two different input reference signals at various rates from 4 kHz to 77.76 MHz. An optional
RALTRON ELECTRONICS CORP. § 10651 N.W.19th St § Florida 33172 § U.S.A.
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SYNCHRONOUS EQUIPMENT
TCXO BASED STRATUM 3 CLOCK UNIT – SY01-S3T
00
01
10
11
Free-run
Locked to REF1
Locked to REF2
Holdover
• SPECIFICATIONS
General
Specifications
Input Signals
Output Signal
Signal Quality
Performance
Frequency Output
Performance
Mechanical
Power Supply
Warm Up Current Supply
Steady State Current Supply
Operating Temperature
Storage Temperature
Humidity
Internal Oscillators
Number of Inputs
Input reference frequency
Signal Level
Time Reference characteristics
Number of Outputs
Output 1
Output 2
Signal Level
2” (D) x 2” (W) x 0.75” (H)
1.85” (D) x 1.85” (W) x 0.7” (H)
1.8” (D) x 1.8” (W) x 0.65” (H)
5VDC
900mA max
400mA max.
-20°C to 70°C
-40° to 85°C
5% to 95% non-condensing
TCXO
2
8kHz to 77.76MHz
HCMOS/TTL Compatible
2
8kHz to 77.76MHz
8kHz to 77.76MHz
HCMOS
Jitter Tolerance
Phase Transient Tolerance
Wander Generation
Wander Tolerance
Jitter Generation and Transfer
Wander Transfer
Free run accuracy
Holdover frequency stability
Initial Offset
Temperature
Drift
DPLL bandwidth
Lock Time
Lock accuracy
±4.6ppm
±3.7x10-7 for 24hours
±50x10-9
±0.28x10-6
±1.0x10-6
±40x10-9
0.1Hz
<30sec
±1x10-11
Hermetically Sealed Metal box
Metal Box
Module on PCB
Regulated
Other ranges available on request
User selectable
Bellcore: GR-1244-core 3.2.1.R3-1
User define
User define
Depend of the frequency output
Bellcore: GR-1244-core 4.2
ITU-T: G.813
Bellcore: GR-1244-core 4.4
Bellcore: GR-1244-core 5.3
ITU-T: G.812
Bellcore: GR-1244-core 4.3
ITU-T: G.812
Bellcore: GR-1244-core 5.5
ITU-T: G.812
Bellcore: GR-1244-core 5.4
ITU-T: G.812
GR-1244-core 5.1
ITU-T: G.812
Bellcore: GR-1244-core 5.2
ITU-T: G.812
25°C ±10°C
Bellcore: GR-1244-core 5.2
ITU-T: G.812
Or adjustable
GR-1244-core 3.7
RALTRON ELECTRONICS CORP. § 10651 N.W.19th St § Florida 33172 § U.S.A.
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