T910 WR Clock Synchronization Switch

Building the precise synchronization exchange core of the future distributed time network

T910 is widely used in the new generation of time-sensitive networks, providing <1ns time synchronization deviation and <10ps clock synchronization accuracy for large-scale projects.

White Rabbit Time Synchronization Solution

The White Rabbit Switch (WRS) is a core device in the WR network, designed for high-precision time synchronization and frequency distribution. It supports up to 18 fiber-optic synchronization ports, provides stable time and frequency signal output, and is suitable for building ultra-large-scale time synchronization networks. Combining advanced hardware with an embedded Linux operating system, it supports multiple network protocols and management interfaces (such as SNMP, SSH, and the Web), ensuring flexible network deployment and efficient time management. It boasts exceptional clock synchronization accuracy of <10ps and supports Master/Slave mode configuration, making it suitable for a variety of complex network environments. By automatically measuring and compensating for fiber delay, the WRS achieves precise time synchronization and supports cascaded applications with up to 10,000 nodes. Furthermore, the device is compatible with multiple protocols, including PTPv2, Sync-E, and VLAN, to meet the time synchronization needs of diverse applications.

Applicable fields: dual-base station radar, adaptive antenna array, distributed time measurement, etc.

Important Features

The T910 is a high-precision time synchronization switch based on White Rabbit technology. It offers nanosecond-level time synchronization, flexible network management, and scalability, making it suitable for building large-scale, distributed, and precisely synchronized time network systems. The following are some key features of the T910:

18 fiber optic synchronization ports
Time synchronization deviation <1ns, clock synchronization accuracy <10ps
Synchronous distance 20km (optional optical module can support 100km)
Ports can be configured in Master/Slave mode
Supports cascading and can be expanded to connect tens of thousands of nodes
Supports GM, BC and OC modes in PTP protocol
Support PPS, 10MHz, 125MHz output

Application Scenario

Deep space exploration

In deep space ground stations, the T910 serves as a WR clock exchange node, supporting sub-nanosecond synchronization and ensuring high coordination between multiple tracking and control stations for remote spacecraft's ranging and velocity measurement systems. Its multi-port architecture and redundancy mechanisms provide a solid foundation for high mission reliability.

Precision measurement and control

The T910 provides low-jitter, sub-nanosecond time synchronization for applications such as particle accelerators, telescope arrays, and quantum experiments. By working in tandem with the WR and PTPv2 protocols, it enables nanosecond-level data alignment across large-scale devices, improving system measurement and control consistency.

National Defense Time and Frequency

The T910 supports 18 channels of simultaneous Gigabit output and features fast configuration and active/standby switchover. It is suitable for deployments requiring high time and frequency consistency in tactical communication networks, radar arrays, and guidance systems. It also supports hybrid networking with VLAN, GNSS, and WR protocols, enhancing system survivability.

National timing backbone

As the core node device of the White Rabbit timing network, the T910 is compatible with interface protocols such as PTP/SyncE/PPS/10MHz. It can be deployed between timing nodes at all levels to form a high-precision, high-stability, and high-security national time and frequency transmission link.

High Altitude Cosmic Ray Observatory

The T910 WR supports sub-nanosecond synchronization, multi-node precision distributed triggering, and provides 10MHz, PPS, and TDC outputs to ensure event alignment.

Power and Energy

In smart grid protection system synchronization, the T910WR Switch is used as a unified time synchronization master station to achieve sub-nanosecond regional high-precision time node distribution.

Improving 5G capabilities of mobile backbone

White Rabbit's extensions support wide area network deployments and enhance network security, and combined with the High Accuracy Profile, provide sub-nanosecond time alignment capabilities for 5G heterogeneous networks.

Performance Indicators

Classification	Parameter name	Index
Output		18SFP WR port, optical/copper management link port
System performance		Linux embedded, SSH/Web management interface, IEEE802.1x protocol (multicast, spanning tree GMRP), VLAN tagging, SNMP switch management
PPS	jitter	<10ps
Phase noise	@1Hz	-100.1dBc/Hz （-87.1dBc/Hz after 10-stage cascade)
	@10Hz	-103.0dBc/Hz （-84.3dBc/Hz after 10-stage cascade)
	@100Hz	-119.8dBc/Hz (-115.7dBc/Hz after 10-stage cascade)
	@1KHz	-135.5dBc/Hz （-134.9dBc/Hz after 10-stage cascade)
Allan deviation	T=0.01s	7.97E-11 （1.93E-10 after 10-stage cascade)
	T=0.1s	1.23E-11 （9.57E-11 after 10-stage cascade)
	T=1s	1.32E-12 （9.98E-12 after 10-stage cascade)
	T=10s	1.43E-13 （9.24E-13 after 10-stage cascade)
Reference input	SMA	PPS_IN，CLK_IN（10M）
Reference output	SMA	PPS_OUT，CLK_OUT（62.5M）、SYNC_OUT（10M）
Port	SFP	18-way, supports 2-level configuration, with EMI shielding gasket, and dual-color status LED indicator on each SFP port
Front panel	Management port	RJ45，100Mbps
	Management Link	SFP，100Mbps
	MINI-USB interface	For FPGA debugging (DBG)
	MINI-USB interface	For ARM debugging (MNG)
	indicator light	Dual-color LED light for power and status indication, with reset button
Rear panel		AC power cord interface with switch, grounding post
Physical environment parameters	size	1U,482.8mm × 42.34mm × 246.8mm
	power supply	100-240VAC，2.0A，50~60Hz
	Power consumption	<50w
	Working temperature	0℃ ~ +50℃
	Storage temperature	-40℃ ~ +70℃
	humidity	0 ~ 90% non-condensing
	Fiber type	LC, single-mode, G652, 9/125um; BiDi optical module, 1310/1490nm