Tests TR127
Download TR-127 Issue 2 Corrigendum 1
The Technical report TR-127 has been written by Broadband Forum. It provides a set of test methods and robustness criteria to dynamically verify the quality of the xDSL filter, i.e its capability to filter all POTS transitions (on-hook, off-hook, ringing, and ring trip events). These tests are done using real xDSL transmission line (DSLAM, real cable, CPE modem, etc.).
TR-127 compliancy insures a good deployment of the related filter in the operator network, especially for triple play services.
These tests are complementary to ETSI TS-101-952-1 tests which validate the electrical characteristics of the filters.
| Ref | Tests |
| 8.2 | Lab Calibration Test Without POTS Splitters |
| 8.3 | Continuous hook state test using baseline splitters |
| 8.4 | Continuous hook state test with a splitter as DUT |
| 8.5 | Continuous ringing test with baseline splitters |
| 8.6 | Continuous ringing test with a splitter as DUT |
| 8.7 | Ringing with cadencing test with a splitter as DUT |
| 8.8 | On-hook to Off-hook and back in the absence of ringing |
| 8.9 | On-hook to Off-hook ring-trip transition |
| 8.10 | Data rate performance |
