An optical fibre link has been established for precise time and frequency transfer utilizing White Rabbit (WR) network. Temperature sensitivity of WR network components on time offset error has been studied in detail. WR node shows significant sensitivity to the ambient temperature variation when it is locked to an external reference frequency. The change in time offset between two nodes reaches up to one nanosecond for a temperature variation of 25 °C. The temperature variation of the optical fibres does not show any noticeable change in time offset during two-way communication as the precision time protocol (PTP) compensates the delay arises for any local temperature variation. However, time offset variation shows significant sensitivity to temperature variation of the fibre when the PTP is not functional.

已经建立了一条光纤链路，以利用White Rabbit（WR）网络进行精确的时间和频率传输。详细研究了WR网络组件对时间偏移误差的温度敏感性。当WR节点锁定到外部参考频率时，它表现出对环境温度变化的显着敏感性。对于25°C的温度变化，两个节点之间的时间偏移量变化最多可以达到1纳秒。光纤的温度变化在双向通信期间没有显示任何明显的时间偏移变化，因为精确时间协议（PTP）可以补偿任何局部温度变化引起的延迟。但是，当PTP不起作用时，时间偏移变化显示出对光纤温度变化的显着敏感性。