12 TimeSource 3100
Description
097-72020-01 Issue 9: November 2003
SSS SSSSSSS SSSS S SSSSS SSSSSSS S SSS S SSSSS SS
1
Overview
The TimeSource 3100 is a Primary Reference Source (PRS) that receives and processes
signals from GPS satellites, and outputs Stratum 1 synchronization signals traceable to UTC.
TimeSource 3100 applications include synchronization for central offices, radio base
stations, transmission nodes, and other instances where a primary reference source can
improve the performance of telephony network facilities.
The TimeSource 3100 creates timing outputs by ensembling signals from several sources.
The sources include GPS signals, an onboard local oscillator, and optional E1 or analog and
remote oscillator signals. Timing outputs created from the ensemble are composed of the
most stable and least noisy parts of each input. Synchronization outputs are delivered in a
framed, all-ones, E1 or 2.048 MHz analog signal, a 1 pps signal, T1 signals (optional), and
time of day (TOD) signals.
The TimeSource 3100 minimizes timing impairments, such as jitter and wander, that are
created by network and transmission systems. The synchronization timing is traceable to the
GPS, which provides the highest level of synchronization for telephony networks. The
TimeSource 3100 with its GPS input is a stand-alone office PRS. With the optional inputs
ensembled, overall system performance is improved, and holdover is extended if GPS
signals become disrupted.
To Next Page
Loading...
Need help?
General
