CenturyLink

Sun Dec 30 17:29:37 UTC 2018

Hey Matthew,

> We use an older model of https://www.microsemi.com/product-directory/enterprise-network-time-servers/4117-syncserver-s600 with rubidium oscillator. Not cheap, but hardened and extremely accurate.

Out of interest why rubidium? For short term stability oscillator
choice isn't much of a matter for free running even rubidium will be
off good +-1us per day or +-30us per week. I've always wondered what
niche rubidium covers that isn't handled by much cheaper crystal ovens
or actually precise oscillators.

-- 
  ++ytti