T220-B PCIe Time Synchronization Card

Learn about our PCI timing solutions

The T220-B PCIe Time Synchronization Card is an entry-level, high-precision time synchronization board designed for computer systems. It plugs directly into a standard PCIe slot and acquires a time reference via B-code signals or a satellite receiver, providing the host with time synchronization and timing interrupt capabilities to ensure consistency between the system software time and the board’s time. The product supports B-DC time input, 1PPS pulse output, and B-DC output. A GPS/BD receiver is available as an optional accessory, and the system supports switching between primary and backup reference sources, allowing for automatic or manual selection of the valid time source. When the external reference is interrupted, the internal frequency source enters a hold state to continuously provide a stable time reference. Through the PCIe interface, applications can call APIs to implement periodic interrupts and timer alarm functions.

Suitable for applications such as scientific measurement, telecommunications, power, transportation, and industrial automation

Important Features

Supports two-way B code (DC) time information input
Reference time source master/slave switching, automatic or manual switching
Onboard frequency source optional (temperature compensated crystal oscillator, constant temperature crystal oscillator)
Multiple timing functions
Support Windows and Linux systems, providing rich software interfaces
API provides multiple soft timing interrupts and time matching interrupts

Important Features

Test Item	Specifications/Parameters	explain
Time reference source	Number of way: 2-way
	Standard: IRIG-B DC	GJB2991-2008 Standard/IEEE
	System accuracy: 100ns (TCXO: 100us)
	Connection method: RJ45
Output	1PPS pulse: 1-way	Connection method: RJ45
Timed interval interrupt	Pulse: 4 channels independent settings	Period: 100us – 10000s
	Accuracy: 1us
Software Features	Timer alarm interrupt	4-channel independent settings
	Delayed timer interrupt	4-channel independent settings
	Stepping: 1us
	Supported operating systems: Windows 64/32bit, Linux	Provides standard soft interrupt API library functions and test routines
Local clock	Type: OCXO
	Steady-state accuracy: ≤2E-8 (factory calibration), can be manually calibrated or tamed
	Short-term stability: ≤5E-11/1s
	Aging: ≤5E-10/day
interface	Number of way: 2-way, B-DC (RS422)	Impedance: 100Ω
Interface - PCIe	Width: X1, compatible with X4/X8/X16	Speed: compatible with GEN2 (5Gbps), GEN1 (2.5Gbps), GEN3 (8Gbps)
Physical and environmental parameters	Power supply: PCIe slot power supply
	Size: PCIex1 half-height or full-height card specifications
	Operating temperature: -20°C ~ +80°C
	Storage temperature: -40℃ ~ +85℃
	Humidity: 95% non-condensing

System Block Diagram

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