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SONET_Usr.bk Page 43 Wednesday, December 13, 2000 11:11 AM
Description
HOW TO:
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Selecting Test Features - SDH Operation
Adding Errors and Alarms
Adding Errors and Alarms
Errors and alarms can be added to an SDH signal during testing.
1 Set up the SDH transmit interface and payload required. See "Setting Transmit
Interface " page 20.
2 Select
TEST FUNCTION
3 Choose the ERROR ADD TYPE and RATE required.
Errors can be added at preset rates and at USER programmable rate. With the
exception of ENTIRE FRAME, A1A2 FRAME and BIT, errors can be added at
ERROR ALL rate.
If B2 BIP errors are chosen errors can be added to trigger an APS THRESHOLD.
This takes the form of N errors in T time period. N and T are both selectable.
4 Choose the ALARM TYPE
Errors and Alarms can be added at the same time.
SDH, ERR & ALARM as shown above.
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