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Quarra PTP Ethernet Switches

Connect » Real-Time Signal Transfer » Intra-Facility Connectivity » IP networks and switches and SDVN »

Video signals have always depended on precise synchronization along the entire delivery chain from camera to consumer display, whether in analog, digital or compressed formats. Timing drives every aspect of signal delivery, particularly synchronizing video to audio to achieve “lip sync.”

With the transition to IP networks for all aspects of the signal processing path, accurate timing becomes more difficult, due to the fundamentally asynchronous, non-deterministic nature of packet-based networks. Fortunately, a solution is available, in the form of IEEE 1588 Precision Time Protocol (PTP). When used properly, this technology can synchronize device clocks to within nanoseconds across a large network with many hundreds of nodes. When these clocks are derived from GPS (Global Positioning System) signals, PTP can provide a very accurate and stable timebase for all types of signals within modern media operations.

The Quarra line of PTP IP solutions compliment Artel's media delivery portfolio offering end users an excellent solution set for delivering real-time media IP network. As the broadcast industry continues to migrate toward all-IP networks, providing reliable solutions to manage IP-based workflows becomes paramount to maintaining efficiencies and ensuring the delivery of mission-critical multimedia streams.

The Quarra PTP Ethernet switches provide leading-edge precision timing protocol switch technologies and have become de-facto standards for the AES67/ SMPTE ST-2059-2 (IEEE1588) audio market. Designed for Carrier Class applications where accurate timing and control is required, Quarra switches are aimed at the professional markets of Audio/Video Broadcast, Defense & Security, Finance, Utilities, Telecom, and Enterprise IT. The Quarra switches are designed as either a standard 1RU rackmount unit with dual power supplies, or a half-width 1RU unit with a single power supply, the switches are available in several configurations of 1 Gigabit and 10 Gigabit interfaces, supporting a best-in-class layer 2 IEEE 1588v2 algorithm. A 1pps external reference input from GPS is included as standard, and options include an internal layer 1 Synchronous Ethernet module. The Quarra switches support SMPTE Standards-based Timing ST 2110-10 and ST 2059-2 and are RAVENNA AES67 approved. The Quarra switches also support IGMP v2/3, QoS, protection switching, VLAN, MEF service delivery and network OAM.

Ideal for:
• Live video/audio broadcast/production over IP utilizing IEEE1588 timing, QoS and Multicast filtering.
• Broadcast DTT/DTV IP distribution, utilizing IEEE1588 and SyncE timing to replace or backup GPS timing at base stations.
• Telecom networks, providing high level of network timing.
• Financial/trading networks, utilizing our IEEE1588 precise nanosecond time synchronization.



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