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Operating Basics: User Interface
2-38 OTS9100 User Manual
Anomaly Insertion
Figure 2-22: Anomaly Insertion of the Error Insertion menu
The anomaly insertion section of the error insertion menu, as shown in Figure 2-22, provides all
controls for inserting anomalies. The Anomaly Insertion Setup, shown to the left of the example
(Figure 2-22), provide menus for anomaly insertion setup. The Current Anomaly Insertion and
Insertion Control, shown to the right, supply information on the current insertion state and
provide the insertion controls.
To select the type of anomaly injected, use the pull-down menu labeled Type under Anomaly
Insertion Setup. The anomaly types available are B1 BIP, B2 BIP, B3 BIP, MS REI (REI-L),
Payload Bit, Random Bit, REI-P, and Random Bit (SPE only). To choose an anomaly rate, click
on the arrows or highlight and type in the boxes labeled Rate. Or click on the Max Rate button
to inject the maximum rate.
NOTE: For these changes to take place, the Apply Anomaly Setup Changes button must be
clicked. The Current Anomaly Insertion settings will then reflect the new changes.
The ability to insert single B2 anomalies in either the first B2 only or the first B2 in each STM-
n/OC-n structure can also be selected by clicking the appropriate radio button.
To start the anomaly injection, click one of the buttons under Insertion Control.
• Insert Single – Clicking on this button will inject a single anomaly of the type reflected under
Current Anomaly Insertion.
• Start Continuous Insertion – Clicking on this button will inject a continuous insertion of the
anomaly type reflected under Current Anomaly Insertion at the indicated rate.
Anomaly Insertion and Through Mode
When inserting an anomaly in through mode, the user must check the appropriate overwrite box
for the anomaly type. For example, to insert a B1 or B2 error, the Regenerate B1/B2 Parity box
must be selected or the error will have no effect. The list of available anomaly types is
dependent upon the overwrite controls enabled. Thus, if no overwrite controls are selected, the
anomaly list will be quite short.