Synchronization Products - SSU-32 Network Synchronization Clock

(Only for sale in the Nordic countries) Today's telecommunication is digital. Whether we talk about voice, fax, TV-signals or data, whether we talk about fixed or mobile telecommunication, whether we talk about optical fiber, copper or radio transport networks, we come to the same basic element, synchronization. The more network traffic, the higher the importance of synchronization. A reliable telecommunication is based on synchronized data signals, which are paced with the same clock, everywhere in the network. In e.g. SDH and SONET networks, the master Cesium clock or the primary reference clock PRC is distributed in the network with the data stream and recovered in the network nodes. Normally you find also "Slave Clocks" or SSU:s (Synchronization Supply Units) in some network nodes, that could temporarily take over synchronization in the local node (holdover), if the central synchronization fails for some reason.

Our latest product line in development is SSU-32 for network synchronization, for example SDH or SONET or Digital Audio or DTV distribution networks. The SSU-32 derives its synchronization from the GPS satellites, which is a far more stable method than picking up an E1 or T1 data stream with high amount of jitter and wander. As long as the SSU-32 is locked to GPS, it performs as a PRC master clock. An atomic Rubidium slave clock offers excellent holdover properties, and gives PRC performance over several days also in holdover mode.

SSU-32 is a flexible modular and 1+1 redundant, high-stability synchronization supply unit. It can be equipped with an ultra-stable rubidium oscillator or a high-stability OCXO. The SSU-32 accepts synchronization input from multiple sources including redundant 2Mbps-lines, 2.048 or 5 MHz external clock inputs or even an optional built-in GPS-receiver.

The SSU-32 features up to 208 outputs (2 Mbps or 2 MHz) that are fully redundant and autonomous and more than 1400 with the SDU-33 clock distribution unit. Retiming units and hitless switching of input sync sources without any output phase jumps are extraordinary features. The 2Mbits outputs support SSM - Synchronization Status Message management.
The SSU-32 incorporates high-performance 1+1 redundant Rubidium and Quartz clocks with extensive monitoring of e.g. frequency. Jitter and Wander filtering exceeds the requirements in ITU-T G.823/G.825. The clocks can operate in locked, holdover, automatic, manual & majority modes. Other noticeable features are up to 64 Frequency feedback monitoring inputs and a number of masks for automatic conformance checking.

The LYNX RSNM (Remote Synchronization Network Manager) can monitor hundreds of SSU-32 simultaneously and lets the operator configure the SSU:s, detect faults and other events, monitor sync quality, control security and maintain inventory management. Communication with central host is made via PSTN, X25 or Ethernet (TCP/IP). SNMP protocol is supported. GPS-locked Rubidium clock for ultimate stability (PRC) Modular rack design with plug-in modules. Upgrade when need arises Safe operation: Alarm output, redundant power supplies, SW monitoring

from : http://www.xlmicrowave.com/