SP-3000 measuring system

 


The SP-3000 measuring system is destined for complex wander testing of timing and synchronization signals, e.g. in digital telecommunication networks. The SP-3000 system was designed at the Institute of Electronics and Telecommunications, Poznan University of Technology. It is a highly updated version - as far as both hardware and software are concerned - of the SP-2000 system, installed in different telecommunication nodes all over Poland since the year 1996. It replaces also the previously offered TIEM meter, which is at present a 1- or 2-channel version of the SP-3000 system, assembled in a smaller cassette. The present system, like the previous one, enables the testing of the quality of clocks as well as the synchronization quality of synchronization networks in relation to international, national and operator-created standards. In the configuration with rubidium oscillator, the SP-3000 is an autonomous system, i.e. it contains all elements necessary to acquire the signal tested (the probes) from working digital lines without transmission disturbance and to perform measurements. It has an internal reference signal with automatic or manual compensation of frequency changes observed in the internal rubidium oscillator. It has also an appropriate software for measurements and comparison of the results with international standards. The SP-3000 system has been a unique world-class solution so far, due to such features as:

  1. From 1 to 4 independent measuring channels, performing measurements for signals with the same or significantly different nominal frequencies. For example, the parameters of 2048kHz signal may be tested in relation to the 10MHz, 5 MHz, 2048kHz, lpps, or other signals.
  2. Built-in source of reference signal for testing the parameters of synchronization network with automatic (to external 2048kHz signal or lpps signal from external GPS receiver, optionally to 5MHz, 10MHz or other signals) or manual compensation of frequency changes in the internal rubidium oscillator, caused by ageing effects of the oscillator.
  3. The lack of frequency retrace error of internal oscillator, due to the built-in power maintenance of the oscillator during SP-3000 transportation.
  4. Autonomous, active measuring probes for acquiring the signals tested from working telecommunications lines without disturbing or interrupting a data transmission.
  5. Practically unlimited time of single measuring session, depending only on the capacity of hard disks installed in Laptop computers.
  6. Reach software with unique procedures (certified by respectable research publications) speeding up the calculations of MTIE and TDEV even by thousands of times.
  7. Built-in sets of 14 standards, a possibility of defining further standards, including user standards.
  8. Module structure, enabling the completing of system cards, according to user's needs.