Pop-Up
966 FTBx-88000 Series
DS1 Loopback
DS1 Loopback
The Loopback feature generates a code that is interpreted by the DUT. The
DUT interprets the command and implements the loopback.
Loop Code allows selecting the type of loopback that will be used to
overwrite the traffic that will be generated. Choices are listed in the
following table in addition with 10 predefined Loop Codes (see Modify
Loop Codes on page 967).
Loop-Up injects the selected loop up code. The loop code will be
generated continuously for a maximum of 10 seconds or until the
loopback is confirmed. After 10 seconds, if the loopback has failed, a
Loop-Down command is sent. A pop-up window appears indicating
the loop code injection progress and result. The text box next to the
Loop-Up button indicates the selected loop up code.
Loopback Type
Command
Loop-Up Loop-Down
CSU (10000/100) 10000 (default) 100
NIU FAC1 (1100/1110) 1100 1110
NIU FAC2 (11000/11100) 11000 11100
NIU FAC3 (100000/100) 100000 100
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