Oscilloquartz SA – Rue des Brévards 16 – CH-2002 Neuchâtel – Switzerland – Tel. : +41 32 722 55 55 – Fax : +41 32 722 55 56 – [email protected] - www.oscilloquartz.com OSA 453x Series Highly Compact GPS and GPS-less Synchronisation Receivers and Re-Timers The existing and emerging standards in the world of mobile telecommunications and digital broadcasting demand the highest quality of synchronisation. A proper timing signal therefore becomes more and more important for media centres as well as for cellular networks where location services such as E911 will have more importance. Oscilloquartz has built the engine of its highly successful OSA 5581C GPS-SR into a single casing format complete with an integrated power supply (12V or 24V / 48V), so as to provide a flexible Time & Frequency solution to customers requesting a highly compact single input/output timing unit or needing a one traffic channel retiming unit. The unique architecture of the OSA 453x Series is designed to maintain the strict CDMA holdover specifications. The OSA 453x Series are also a natural choice as a synchronisation source for UMTS, WCDMA and cdmaOne, as well as GPRS, CDMA and TDMA base station and mobile switches. Their 1 PPS and 10MHz outputs make them ideal for synchronising DAB/DVB equipment. Common features: All models provide standard 1 PPS, 10 MHz and TOD (Time Of Day) outputs referenced to UTC1. All models include a highly accurate ovencontrolled oscillator, which filters the reference signal and provides a holdover quality comparable to that of an SSU in case of loss of external reference. The OSA 4530/1/2 GPS are GPS Receivers providing E1/DS1/2.048 MHz outputs according to ITU-T G.703-X. Models 4531/2 also accept an auxiliary E1/DS1/MHz reference as a robust alternative to GPS. The OSA 4533/4 GPS and OSA 4535/6 RTM are Re-Timing Modules that re-time one E1 or DS1 traffic signal. Models 4533/4 take GPS as reference, while 4535/6 smooth out timing impairments from the traffic signal and therefore need no external reference. Control software All equipment of the OSA 453x series are manageable via the OSA Control and Monitoring (CM) software that gives full control on all their functionalities via an intuitive MS-Windows based graphical user interface. As an example, 4533/4/5/6 Re-timing Modules, together with the unit's operational state, allow to examine the number of slips counted during the last hour / day / week by the equipment. All units feature an alarm relay contact which allows to activate a local or remote alarm system when no serial management link is available. Highlights : .. Economic, reliable and compact, in the standard 5” x 4” x 2” format .. Possibility for one auxiliary input: E1, DS1 , or frequency (4531/2 models) .. Various output options: ITU-T G.703-X compliant E1/DS1/ 2.048MHz .. Models with GPS can provide UTC-derived timing information through: - UTC-locked 1 PPS output - TOD compliant to NMEA0183 .. Re-timing of one E1 / DS1 traffic signal .. Integrated high stability holdover functionality: - Frequency stability < 1 x10-10 /day (typical) .. ITU- T G.811 / ST1 compliant when locked to GPS .. ITU-T G.812 (I, V, VI) compliant holdover .. ITU- T G .812 (I, V, VI) filtering of auxiliary input OSA 453X Series 1 When the system is locked on GPS, except models 4535/6 that are GPS-less

Oscilloquartz SA – Rue des Brévards 16 – CH-2002 Neuchâtel – Switzerland – Tel. : +41 32 722 55 55 – Fax : +41 32 722 55 56 – [email protected] - www.oscilloquartz.com Technical specifications 453x Typical Applications Performance when locked to GPS-signal: .. G.703-x outputs compliant to ITU-T G.811/ST1 .. 1 PPS accuracy: < 100 ns pp (at constant temp.) < 150 ns pp (at variable temperature, -5°C to +55°C) .. ADEV < 10-12 (10’000 seconds) Environmental characteristics (OSA 453x GPS-SB ): .. Operational: -5°C to +55°C .. Storage: -40°C to +85°C .. Humidity: 95% non-condensing .. CE mark: EN50081/...