TELECOM NETWORKS PROFESSIONAL COMMUNICATION TIME & FREQUENCY Telecom networks which are out of synchronization often suffer from bit errors and slow transmission rates. Without precise timing, transmissions can lose some information during transport, particularly in the realm of optical transport data networks and broadband systems. As new standards emerge in the world of mobile telecommunications and digital broadcasting, the high quality of the synchronization signal becomes increasingly important for cellular operators and media centres. The OSA 5581C GPS is a GPS synchronization receiver and distributor specially designed to eliminate these problems. All critical parts in the OSA 5581C GPS, including the GPS input and holdover unit, can be duplicated to ensure high availability. Precision, Stability, Innovation, Support

Synchronization Receiver Input & Holdover The OSA 5581C GPS can be equipped with dual redundant GPS input and holdover modules to provide unparalleled reliability. Each module features one GPS receiver and one auxiliary input reference accepting E1 or T1 signals or an auto detected frequency (1.544, 2.048, 5 or 10 MHz). Thanks to its modularity, the equipment can also be configured with only one GPS input and holdover module for lower cost applications. Upgrading to a fully-redundant dual channel solution at a later stage is made possible by simply inserting the necessary modules in their respective...

Synchronization Receiver There are many applications for the OSA 5581C GPS: ■ It is ideal as a low cost ITU-T G.811 Primary Reference Clock. ■ Its excellent internal oscillators attenuate the GPS-specific jitter and wander and deliver a frequency signal complying to ITU-T G.811, even under harsh temperature conditions. ■ A GPS receiver used as the central PRC of an SDH or SONET-based synchroni- zation network is required to have a high availability for these applications. The Dual GPS receiver configuration is the appropriate solution. OSA 5581C GPS can also be used as a telecom node clock to...

Synchronization Receiver Physical dimensions (HxWxD): ■ Up to 2 power supplies in any combination of Time-code output: ■ Network Time Protocol (RFC 1305)/SNTP(RFC2030) Antenna cables: ■ Longer distance: contact your OSA representative Output signals: ■ Up to 64 (32 protected) output1 selectable in groups of 16 among2: Retiming of up to 24 traffic-carrying El/Tl signals Local Manager through RS-232 connection Remotely manageable through any IP network via the SyncView™pius Synchronization Management System Up to 2 x auxiliary inputs (choice of): Oscillators, GPS input and holdover ■ GPS-xl-B:...