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MTT-14B e_Manual D07-00-083P RevA00
2.3.5 Error Injection
To start error injection, press
ERR INJ. The test set will insert
errors as specified in the screen
to the right. If the error injection
is set to RATE mode, an ERR-
INJ indicator will be displayed.
Note: Error Injection works in
STU-C E1, STU-R E1, or E1
modes, but not in STU-C or
STU-R modes.
Configure the following:
TYPE
Options: CODE (F1), BIT (F2), BIT + COD (F3), CRC-4 (MORE,
F2), FRAME (MORE, F2), E-BIT (MORE, F3)
Specify the type of errors to be inserted.
MODE
Options: BURST (F1), RATE (F2)
Specify the mode of error injection.
• RATE: Applies only to CODE and BIT errors. Errors are injected
at a constant rate.
• Other types of errors may be inserted one at a time under
BURST mode, which injects a set number of errors.
COUNT
Options: 1 to 9999 or 1e-9 to 2e-3
For BURST, choose the COUNT of errors to be inserted.
For RATE, choose the error RATE number and exponent.
• For BURST, press SHIFT, then use the numeric keypad to enter
any number between 1 and 9999. The errors will be inserted
in approximately 1 second or less, and will cause from 1 to 3
errored seconds.
• Applies only to BIT and CODE errors. All other errors will be
injected singly.
• For RATE, the errors will be inserted at a continuous rate as
specified in this entry. An on screen ERR-INJ indicator will be
displayed while this is active.
08:39:57
Meas
>LINK UP
ERROR INJECTION
TYPE
: CODE
MODE
:
BURST
COUNT : 1
BURST
RATE
Figure 40 Error Injection Screen
STU-C E1<
Page 63 of 101
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