  Owing to the characteristics of ultra-low loss and anti-electromagnetic
interference, using optical fiber to deliver time and frequency signal has been
a preferred choice for high precise clock dissemination and comparison. As a
brilliant idea, one has been able to reproduce ultra-stable signals from one
local station to multiple users. In this paper, we take a step further. A
concept of multi-clock (in different locations) dissemination for
multi-terminals is presented. By injecting frequency signals into one
stabilized ring-like fiber network, the relative stabilities of 3.4e-14@1s for
a master clock dissemination and 5.1e-14@1s for a slave clock dissemination
have been achieved. The proposed scheme can greatly simplify the future 'N' to
'N' time and frequency dissemination network, especially facing a multi-clock
comparison situation.
