STM-S3-19.44MHZ

Application Specific Clock/Timing Overview

The STM-S3-19.44MHZ is a Stratum 3 timing module manufactured by Connor-Winfield, designed to function as a complete system clock for telecommunications infrastructure. It complies with Bellcore GR-1250-CORE (Stratum 3) and ITU-T G.810 standards. The module provides redundant reference inputs and synchronous outputs ranging from 8 kHz to 77.76 MHz. It features a 40-second filtered holdover history capability, ensuring stable timing during reference loss. This component serves as a simplified control timing solution for SONET/SDH networks.

Application Specific Clock/Timing Feature Summary

• Compliant with Bellcore GR-1250-CORE Stratum 3 and ITU-T G.810 standards
• Provides redundant reference inputs for enhanced reliability
• Offers multiple synchronous output frequencies from 8 kHz to 77.76 MHz
• Includes 40-second filtered holdover history for stability

Application Specific Clock/Timing Applications

• SONET/SDH network synchronization
• Telecommunications system clock modules
• Base station timing units

Application Specific Clock/Timing Part Context

This part belongs to the STM-S3 series of Stratum 3 timing modules from Connor-Winfield. These modules are engineered to replace discrete timing circuits in telecom equipment, offering a compact, board-level solution that meets strict international synchronization standards for digital hierarchy systems.