b. Select the Exclude FAS.
Selecting On inserts errors at any position excluding FAS when the
rate is 2.0E-3 or larger. This settings avoids the occurrence of LOF
by inserting errors into FAS.
3. When selecting Uncorrectable Error or Correctable Error:
a. Touch the Sub-row field to set the sub-row.
b. Insertion Mode is fixed to "Single".
Touch the Error Insert icon. The error is inserted once by
touching the icon.
For O.182 Poisson, refer to the white paper on Anritsu homepage:
FEC Efficiency New Test Method - Required by ITU-T New Rec. O.182 -
7.1.4.2 OTN frequency
Touch the field to set Frequency Offset. If setting a positive value, the
frequency will shift higher side.
Example:
If setting 100 ppm to the frequency offset for OTU2 output signal, the bit
rate of output signal will be
10 709 225.316 * (1+100*10
-6
) = 10 710 296.239 (kbit/s).
Nominal bit rates defined in ITU-T are shown below.
OTU type OTU nominal bit rate (kbit/s)
OTU1: 255/238 * 2 488 320 = 2 666 057.143
OTU2: 255/237 * 9 953 280 = 10 709 255.316
OTU1e: 255/238 * 10 312 500 = 11 049 107
OTU2e: 255/237 * 10 312 500 =11 095 730
OTU1f: 255/238 * 10 518 750 =11 270 089
OTU2f: 255/237 * 10 312 500 =11 317 642
If low order ODU is mapped, Payload Offset field appears. Touch the field
to set the payload offset. The calculated C
m
and C
nD
will be displayed when
using GMP.
7.1.4.3 OTN justification
OTN justification is available when ODTUjk is selected to the Multiplexing 1 in
Mapping dialog box.
1. Select Level to insert the justification.
2. Touch the Burst length field, the dialog box will appear.
3. Select the Movement of the justification.
Positive (+1): positive justification
Positive (+2): double positive justification
Negative (-1): negative justification
4. Touch the Apply Move button to insert the justification bytes.
7.2 APS
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