Chapter 16
Performing RFoCPRI Testing
558
JD700B Series User’s Guide
Measurement example
Figure 340 CPRI layer 2 BERT test
Performing interference analysis
The RF over CPRI (RFoCPRI) technology enables you to perform interference analysis without disrupting
service by monitoring the CPRI signals. It covers multiple network technologies such as LTE, WCDMA, and
GSM/EDGE.
After checking that the link connection is good with no errors and alarms, you can proceed to the
interference analysis activities including spectrum, spectrogram, RSSI, spectrum replayer, dual spectrum,
dual spectrogram, and quad spectrum. You can also monitor current and history CPRI alarm status for LOS
and LOF displayed on the interference measurement screen.
Connecting cables
You can connect cables with a tap or without a tap as illustrated in Figure 341. If you have connected cables
directly from RRH and BBU without using the nTap, you must turn on the through mode (Thru) in the CPRI
parameter settings.
A SFP/SFP+ transceiver that is connected to your JD700B series must be compatible with your DUT and
you must have your module information such as line rate, wavelength, and mode (MM or SM) handy.
Figure 341 Connection diagram for interference analysis
With nTap (both Thru On/Off):
Without nTap (Thru On only):
Содержание CellAdvisor JD700B Series
Страница 2: ...CellAdvisorTM JD700B Series FW3 120 User s Guide ...
Страница 105: ...Chapter 4 Using Spectrum Analyzer 104 JD700B Series User s Guide Figure 44 PIM detection for multiple carriers ...
Страница 406: ...Chapter 11 Using EV DO Signal Analyzer JD700B Series User s Guide 405 3 Pilot 4 MAC 64 5 MAC 128 ...
Страница 734: ...Chapter 18 Perfroming BBU Emulation JD700B Series User s Guide 733 Figure 441 Example of verification of link status ...
Страница 763: ...Chapter 21 Performing Fiber Inspection 762 JD700B Series User s Guide Figure 461 Fiber inspection report ...
Страница 808: ...Appendix JD700B Series User s Guide 807 JD740B series ...
Страница 811: ...Appendix 810 JD700B Series User s Guide Figure 470 Append keywords window ...