OSA 3230B Cesium Clock

G.811 Reference Clock Source using the Digital Cesium technology

Meeting the increasingly stringent synchronization requirements of today’s and future applications requires the implementation of a primary reference clock (PRC) source at central network office locations that generates ITU-T G.811/Stratum 1 frequency signals with accuracy greater than ±1 x 10-11 at all times. Our OSA 3230B can do even more.

Next-generation telecommunication networks such as radio access networks for mobile communication require precise synchronization for active interference management, effective transmission of voice, video and data services and must guarantee a superior user experience. Also legacy networks depend on an accurate frequency signal to minimize pointer adjustments originating from frequency misalignment in the SONET/SDH payload.

Our OSA 3230B provides a frequency source with accuracy better than ±1 x 10-12 during its entire lifetime and is ideal for enhancing overall network performance and preventing up-stream network clock errors from propagating across the entire network.

  • Performance exceeding ITU-T G.811/Stratum 1 PRC
  • Accuracy better than ±1x10-12 during entire life
  • Long life 10 years cesium tube
  • Extremely compact size
  • 10MHz and 5MHz low noise outputs
  • 100kHz to 50MHz programmable sine wave analog output
  • 3xoutputs configurable between 1pps/1MHz/5MHz/10MHz-TTL level
  • 1PPS external synchronization input
  • Optional Signal Expansion, providing 5 additional outputs
  • Redundant DC power supply inputs or mixed AC+DC power supply
  • Control and monitoring via alarm contacts and RS 232 communication
  • TCP/IP Remote management port for TL1 and/or SNMP management


Oscilloquartz SA
Avenue des Pâquiers 1 ▪ 2072 Saint-Blaise ▪ Switzerland
Tél: +41 32 722 55 55 ▪ Fax: +41 32 722 55 56