Bit errors can be evaluated for:
Unframed patterns
Framed patterns and bulk signals
N x 64kbps
Since M.2100 evaluates bit errors, facilities for evaluating block errors are disabled.
Evaluation According to ITU-T M.2101
Note:
M.2101 is only available in Timed and Auto Mode (see
for setup information).
M.2101 is very similar to M.2100 except it deals with SDH systems only.
ES, SES, BBE, SEP and UAS are evaluated.
Pass/Fail results are based on the threshold values S1 and S2 for ES, SES, BBE and SEP.
Settings for S1 and S2:
Path allocation: 0.1 to 100%
BISO Multiplier: 0.1 to 100%
The M.2101 evaluation can be performed on the following events:
B1
B2
MS-REI
B3
HP-REI
LP-BIP
LP-REI
Bit errors (TSE)
Evaluation of the near end and far-end is possible but far-end evaluations can only be made if REI is available.
Bit errors can be evaluated for:
Unframed patterns
Framed patterns and bulk signals
Overhead bytes E1/E2 (order wire), F1/F2 (user), D1 - D3 and D4 - D12 (DCC) in the SDH Overhead (SOH and POH)
Note:
M.2101 measures block errors, therefore bit error evaluation is disabled.
7.1.8 Service Disruption Test (SDT) Results
SDT Results
RXT-3900 e-Manual D07-00-111P Rev A00
Содержание RXT3900
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