Low Jitter Setup - Safran WR-Z16 User Manual

Directory in SD drive
/media/data/update
/media/data/root
/media/data/usr/local/bin
/media/data/usr/local/sbin
/media/data/usr/local/lib
/media/data/usr/local/etc
9.6

Low Jitter Setup

Users interested in low-jitter applications of thier WR-Z16 can refer to the fol-
lowing list of recommendations to reduce jitter:
Phase noise results may be impacted by environmental factors such as tem-
perature variations, uncontrolled airflows, and mechanical vibrations.
The user must comply with the warmup time of the external reference that
is using. (For the OCXO that was used for the WR-Z16 performance data, a
24 hour warmup period was kept).
Oscillators inside WRZ LJ devices (Zen v4 and Z16 v5) need a minimum
amount of warmup time before they can reliably lock to an external
WR-Z16 User Manual
/media/data/update
/media/data/root
/usr/local/bin
/usr/local/sbin
/usr/local/lib
/etc/
Caution: When updating with custom scripts to a new release, the
expert user needs to check that its custom scripts do not interferes
with the booting procedure of the new release. In case of doubt,
please contact the support team to get advices on how to proceed.
Note:
These directories are mounted/linked only at the early stage of
WRZ-OS initialization. A reboot might be needed to make these cus-
tom files appears at the correct place.
Mount points
Always created, used to update the
FW
Root files where we can store the con-
figuration
For custom binaries tools
For custom script
For custom libraries
Create symbolic links into the /etc dir
APPENDIX
Comments
171