OSA 3230 Cesium Clock The OSA 3230 as G.811 Reference Clock Source using the Digital Cesium technology Introduction Telecommunication networks require highly accurate clocks for the effective transmission of digital signals. One of the primary objectives of telecommunication networks is to guarantee, at the connection between different networks, a slip rate of less than one slip in 72 days. Meeting these stringent specifications requires the implementation of a Primary Reference Clock (PRC) that must generate signals with an accuracy better than 1E-11, at all times. Generally, this is achieved using Cesium clock technology, often combined with GPS receivers as backup sources. Unlike off-air receivers, Cesium clocks are autonomous, self-contained primary references immune from external influences. Highlights The Oscilloquartz’s 3230 Cesium Clock is specifically designed and produced with the latest technology to serve complex applications where an extremely accurate reference signal is needed in a minimum size. The OSA 3230 Cesium Clock offers a unique set of operational features and performance, including greatly enhanced professional and easy integration into industrial, time and frequency host systems. With its long life cesium tube, the OSA3230 will meet the requirements where G.811 performances are needed over a long period of time. Features Performances 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 — 3U high (133mm / 5.24’’) — less than 200mm depth, compatible with ETSI and 19’’ standards Typical Applications Front or Rear configuration) Primary Reference Source for PRC system requiring a signal conform to G.811/ Stratum 1 access connectors (depending on Single 10 MHz output Programmable 1 / 5 / 10 MHz TTL output Wireline / Wireless Operators Redundant DC power supply inputs Railways / Energy Companies Remote control and monitoring via RS232 (fully manageable locally and remotely using SyncView Plus management system. Utilities OSA3230 Rear access configuration Oscilloquartz SA / Rue des Brévards 16 / CH-2002 Neuchâtel Switzerland / Tel.+41(0)32 722 55 55 / Fax+41(0)32 722 55 56 [email protected] / www.oscilloquartz.com OSA3230 Front access configuration

Frequency accuracy Frequency deviation over full operating conditions Warm-up time Output level (Optionally the output can be squelched in case of Cs alarm) Operating conditions Atmospheric pressure (temperature range extended from Output level 0 / 5V HCMOS (square) Power feeds Power consumption Relay contacts Normal operation Standby mode + lx rear side) for local manage- ment and / or remotely using SyncView Plus™ Management Management Interface) Oscilloquartz SA reserves the right to change all specifications contained herein at any time without prior notice. A COMPANY OF THE SWATCH GROUP...