White Rabbit Z16
The reliable precise time fan-out for White Rabbit distribution on 1G Ethernet-based networks.
Reliable & precise time fan-out solution for White Rabbit (basis for the new IEEE-1588-2019 High Accuracy Default profile) distribution on 1G Ethernet-based networks.The WR-Z16 is a standalone device with 16 SFP connectors which provides sub-nanosecond accuracy time over plug-and-play optical fiber links.The WR-Z16 provides very precise IEEE 1588-2008 (PTP) in all its optical interfaces and supports NTP interoperability. Picosecond-level frequency distribution is available through a fully digital clock.The WR-Z16 incorporates failover mechanisms which combine multi-source redundancy and holdover capabilities to ensure continuous operation.
The WR-Z16 implements the White-Rabbit (WR) protocol, an high-accuracy extension of PTP based on SyncE, that allows to easily distribute sub-nanoseconds timing within Metro Area Network distances and beyond. Worth to mention, that a timing network using WR protocol is not affected by the traffic load nor the number of hops.
Placed at the top of the rack the WR-Z16 can distribute standard PTP IEEE 1588-2008 for the last hop through its 16x fiber ports using the most common profiles such as Telecoms profiles (G.8265.1, G.8275.1) & Power profiles (IEEE C37.238-2011). It also provides NTP interoperability and 10MHz/PPS distribution.
Resiliency of Time & Frequency
To ensure continuous operation the WR-Z16 incorporates a failover mechanism. It provides a safer version of the “Best-Master-Clock” algorithm as it only allows switching over multiple (predetermined) timing sources when a failure is detected. Additionally, an optional Holdover oscillator can be included to maintain high accuracy (1.5us < 24h) even if all timing references are down.
High Energy Physics (HEP)
Ensuring accurate timing is crucial for the proper functioning, optimization, and safety of particle accelerators
High Accuracy Timing for Managed Service Providers
Improve monitoring capability, including accuracy and precision within their infrastructures and democratize high resolution time-based services to their client communities.
High Accuracy Timing for Exchanges
Improve accuracy and precision to and within their matching networks, provide better transparency to exchange participants, high resolution timestamping for network latency monitoring and the ability to monetize time distribution as a service to market participants
Long Distance White Rabbit High Accuracy time over fiber link
The White Rabbit (WR) link covers an approximate distance of 1,350 km (840 miles) and was deployed in collaboration with Optiver US, a financial company, to connect Chicago and New Jersey trading locations.
Deutsche Börse deploys White Rabbit solution
The German exchange deployed White Rabbit to improve accuracy and precision for internal timestamping via FPGA based switches.
White Rabbit for Finance
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- Sub-nanosecond time accuracy
- 16 optical timing ports for IEEE-1588 & WR
- Multi-source time references
- Designed for Metro Area Network distances and beyond
- Datacenter Optimized design
- Failover & Holdover capabilities
- Extended monitoring and management
- Redundant swappable power supply & fans
- Health monitoring
- Size: 431 x 44 x 330 mm
- Environmental Conditions
- Temperature: -10ºC ~ +50ºC
- Humidity: 0% ~ 90% RH
- Failover mechanism to ensure continuous operation by switching over several timing sources in case of failure
- White Rabbit (accuracy <1ns)
- External references (GNSS, AC) PTP IEEE 1588-2008
- Supported Profiles: Default
- IEEE C37.238-2011 up to 16 clients
- NTP v2, v3 & v4
- Holdover (optional) Accuracy (learning 3 days from GNSS)
- < 100ns @ 4h
- < 500ns @ 8h
- < 1.5us @ 24h