Acronyms Description
WR-ZEN White Rabbit Zynq Embedded Node
WR-LEN+ White Rabbit Lite Embedded Node Plus
WRZ-OS White Rabbit Zynq based (Z16, ZEN, LEN+) Operative System
9.2 Troubleshooting
This section intends to help the user understand how to identify an issue in your WR-Z16
device, as well as giving some guidance to figure out the cause of the problem.
9.2.1 Frequently answered questions (FAQ)
A list of the most commonly asked questions will be described here, as well as the solutions
that can be applied for each of the situations.
Why does the WR-Z16 report link down even if the SFPs are connected to
the WR interfaces?
One of the most common cause of this issue is related to not using matching blue-
violet SFPs.
As in White Rabbit it is of uttermost importance to have equal cable lengths in both
directions, a single fiber should be used for sending data both directions.
Additionally, White Rabbit should follow the 1000BASE-BX10 standard and use
1310/1490 pairs with a single LC connector. More specifically, the Switch ports
transmitting downstream (to endpoints) should use 1490nm on the transmitter and
1310nm on the receiver.
The 1310 nm module corresponds to the blue color and the 1490 nm to the purple
one.
What does the Error 500 mean while uploading the firmware? What is
recommended to fix this issue?
In this case, the best modus operandi is to reboot before flashing the device. Also
check the file is not corrupted.
How can you confirm that external PPS/10 MHz signals are being detected?
At the WR-Z16's console, type:
WR-Z16 User Manual 137
APPENDIX
To Next Page
Loading...