White Rabbit Z16

The WR-Z16 is the reliable & precise time fan-out solution for White Rabbit (basis for the new IEEE-1588-2019 High Accuracy profile) distribution on 1G Ethernet-based networks. It 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 seamless failover mechanisms to switch between multiple timing sources when a failure is detected, ensuring maximum availability and optimal synchronization performance.

ADVANTAGES

High Accuracy

The WR-Z16 implements the White-Rabbit (WR) protocol, a 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.

Interoperability

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 and IEEE/IEC 61850-9-3). It also provides NTP interoperability and 10MHz/PPS distribution.

Resiliency of Time & Frequency

The WR-Z16 incorporates seamless failover mechanisms to switch between multiple timing sources when a failure is detected, ensuring maximum availability and optimal synchronization performance even during the transitions. Additionally, an optional Holdover oscillator can be included to maintain high accuracy (1.5us < 24h) even if all timing references are down.

FEATURES

• Sub-nanosecond time accuracy 
• 16 optical timing ports for WR, PTPv2 and NTP 
• Multi-source time references 
• Designed for Metro Area Network distances and beyond 
• Datacenter Optimized design 
• Seamless failover & Holdover capabilities 
• Extended monitoring and management 
• Redundant swappable power supply & fans 
• Low jitter/phase noise frequency dissemination 
• Precise timing sources monitoring capability 

SPECS

• Size: 431 x 44 x 330 mm
• Environmental Conditions
  • Temperature: -10ºC ~ +50ºC
  • Humidity: 0% ~ 90% RH

• Multi-sources
  • Seamless Failover mechanism to ensure continuous operation by switching over several timing sources in case of failure
  • Precise timing sources monitoring to compare and evaluate the synchronization performance of multiple sources
  • White Rabbit (accuracy <1ns)
  • External references (GNSS, Atomic Clocks)
  • PTP
  • NTP (Time of Day)
• PTP IEEE 1588
  • Default
  • G.8265.1
  • G.8275.1
  • IEEE C37.238-2011
  • IEEE/IEC 61850-9-3
  • Enterprise 
  • IEEE 1588-2019 HA 
• NTP v2, v3 & v4
  • Holdover (optional)
    • Accuracy (learning 3 days from GNSS)
      • < 100ns @ 4h
      • < 500ns @ 8h
      • < 1.5us @ 24h