WR Calibration 
¶
Intorduction¶
The aim of this project is to develop tools and methods to calibrate White Rabbit devices.
Absolute calibration¶
Absolute calibration enforces standardization since it enables independent developers and/or vendors to exchange their WR gear while achieving absolute sub ns timing. Absolute calibrated devices can be used as "golden standards" for the relative calibration procedure.
Absolute calibration is achieved by measuring the time relationship (Δ TXcal, Δ RXcal) between the external electrical phase planes of the PPS signal and the interface to the Electrical-Optical / Optical-Electrical converter (EO/OE, usually the electrical SFP connector) as shown in Figure 1.
Figure 1: White Rabbit link delay model for absolute calibration
Absolute calibration¶
This project is a development for the main White Rabbit Calibration. Therefore further detailed up to date information can be found on this OHWR wiki page.
Acknowledgement¶
Part of this work is funded by ASTERICS European Commission grant no 653477
Contacts¶
- Peter Jansweijer, Henk Peek, Tjeerd Pinkert, Guido Visser
Status¶
| Date | Event |
|---|---|
| 30-10-15 | Start of project |
| 31-08-16 | Linked through to CERN OHWR |
