OSA 5335 PTP Grandmaster
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Product Overview The OSA 5335 Modular PTP Grandmaster is a scalable and high-performance IEEE 1588v2 standard compliant Grandmaster Clock for distribution of frequency, phase and time synchronization over packet-based network infrastructure including IP/MPLS, Carrier Ethernet, PON and DSL networks. Its carrier-class design provides high client capacity and a wide range of redundancy options to deliver scalable performance and maximum availability. The OSA 5335 is designed to deliver precise and reliable frequency, phase and time-of-day information in markets including telecommunications, media broadcast and power utility communications. Reliable Clock Performance Reliable and accurate delivery of frequency, phase and time has become increasingly critical in many applications building on distributed intelligence and processing. In order to meet this increasing industry trend, the OSA 5335 comes with universal input modules accepting a wide range of input signals. It can be equipped with up to two GNSS input modules, each supporting GPS and GLONASS to achieve precise synchronization, therefore enabling operators to meet Stratum 1 requirements without the need to install and manage external receivers or Cesium reference clock sources. The synchronization distribution hierarchy can consequently be attened, resulting in reduced overall provisioning, operations and maintenance costs. Auxiliary input signals serve as an alternative frequency reference to guarantee maximum synchronization service availability and enable operation in locations without GNSS. Active reference input autoselection between GNSS and auxiliary input interfaces can be triggered by quality level, priority settings or performance threshold masks. Jitter and wander on input interfaces is filtered by high-quality oscillator and DDS technology, utilizing Rubidium or Double Oven Quartz (OCXO) technology. The unique output module design of the OSA 5335 provides two 1PPS outputs and 20 autoconfigurable output interfaces. Ten universal output groups can be configured exibly to support unprotected and protected interfaces. Modular Architecture The OSA 5335 modular design accommodates up to three high-capacity PTP modules enabling a total capacity of more than 3,000 remote PTP slave clients. Each high capacity PTP module includes a hardware-based PTP engine with highly accurate time-stamping and supports more than 1,000 PTP slave clients in IP unicast mode according to the ITU-T G.8265.1 Telecom Profile. The OSA 5335 also supports generation of Synchronous Ethernet timing signals including the Ethernet Synchronization Message Channel (ESMC). Management and Performance Assurance The SyncView™Plus management software provides powerful fault, configuration, inventory, performance and security management of the OSA 5335 through an intuitive graphical user interface either locally or from a remote location. Active inputs are constantly measured against the current output reference with 1ns resolution. MTIE, MRTIE, TDEV and Ym curves are compiled and used for input selection. Results can be compared to standard masks and trigger alarms when limits are exceeded. All results are forwarded to SyncView™Plus for display, user validation and storage. Local alarm indication is provided by means of an internal buzzer, electrical relay contacts and status LEDs on the front panel. Features & Benets • ITU-T G.8272 Primary Reference Time Clock • Stratum 1 Primary Reference Source for GPS and GLONASS • Expandable system supporting a total capacity of more than 3,000 remote PTP slaves • Full redundancy for every module and function • Compliant with ITU-T G.8265.1 Telecom Profile • Supports Synchronous Ethernet and optional NTP server • Intuitive graphical user interface enabling full management via SNMP and TL1

Technical Information Overall Architecture • Up to 2 input signal modules • Up to 2 GNSS module • Up to 6 output modules – Max. 3 high capacity PTP modules for 1,024 remote clients each (TCC PTP V2) – Optional legacy PTP module (TCC PTP V1) – Optional NTP server module (TCC NTP) • All input modules can be 1:1 protected • Up to 4 line inputs, optionally 1:1 protected, 4 inputs per module • Input types: E1, 2.048MHz, 5 MHz, 10 MHz individually SW-selectable • Up to 2 GNSS inputs (1 per module), active L1 antenna • E1 inputs can be “terminated” (75Ω) or “bridged” (high impedance, kΩ) Input...