VeEX MPA User Manual page 514

MPA_e_manual_D07-00-129P_RevA00
Inserting Multiple Errors
Various errors can be transmitted by the system. One reason for transmitting errors is to
determine if the receiving equipment can detect an error in the incoming signal.
Inserting multiple errors at a specified error rate allows you to monitor the network and
receiving equipment for any undesirable behavior as the error rate is increased.
To insert multiple errors:
1. Select a protocol processor mode.
2. Select Transmit and choose Error Alarm.
3. Select Error to Insert. The Select Error to Insert window appears.
4. Select an error.
5. Select Error Insert Rate. The Select Error Insert Rate window appears.
6. Select an Error Rate. The system starts transmitting errors at a constant error
rate.
7. After selecting an Error Type, you can also press the
the common function buttons to inject single errors.
Selecting None will stop the error transmission.
Making Pointer Adjustments
The beginning of a SDH payload is identified by a Pointer. It consists of the H1 and H2
Pointer bytes. You can stress a network by manually adjusting the Pointer using the
Increment and Decrement Pointer buttons. By performing this task, you can stress your
SDH equipment to verify if it can tolerate Pointer adjustments, and how your equipment
will react and report these adjustments.
There are several Pointer parameters that must be configured before making a positive
or negative Pointer adjustment.
To make Pointer adjustments:
1. Select a protocol processor mode.
2. Select Transmit and choose PTR.
SDH Tab
Error Insert button from
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