White Rabbit Switch supplied by OPNT
From now on the 18-port White Rabbit switch can also be ordered from
OPNT B.V . This project page describes the changes
/ additions OPNT has made.
The changes fall into two categories: replace existing components due to
obsolescence and making changes to allow easy installation of a
Low-jitter-daughterboard
. The Low-jitter-daughterboard which improves the performance of a White
Rabbit switch a lot can also be ordered from OPNT B.V.
SCB3.4.1
The image below shows the component layout of the
SCB3.4.1
Compared to the SCB3.4 J3 (the black connector on the right) is always fitted and J5 & J6 are added. J6 is a u.FL connector to which the clock output of the Low-jitter-daughterboard can be connected. J5 is used to select between the existing oscillator or the Low-jitter-daughterboard.
A less visible change is the replacement of obsolete components. The biggest change is using a different NAND flash. Also the ethernet connector is soldered to the board so it cannot come lose.
Backplane (carrier board_ 3.3.1
The backplane has been modified so the fans are always on. This is safer because in case of a software failure the fans will still work and keep the hardware cooled. Also more sturdy SFP cages have been used.
Binaries
As a convenience the following pre-packaged firmware files are
available:
Regular firmware with support for
SCB3.4.1
Low-jitter-daughterboard firmware with support for
SCB3.4.1
Contacts
Commercial producers
General question about project
Status
Date | Event |
05-11-2018 | Device commercially available. |
22 November 2018