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Chapter 7. Test Menu
7-4 TDU 120e User Manual 61202156L2-1
No Loopback
Deactivates the loopback. Scroll to select a setting and
press
Enter
to record the setting.
Remote Loopback
Activates the same loopbacks as L
OCAL
L
OOPBACK
, but at
the far end.
Uses either the inband loopup code as specified by ANSI
T1.403 for line loopback (ATT In-Band LLB), or the FDL as
specified in ANSI T1.403 for payload and line loopback
codes.
The following options are available:
ATT In-Band LLB
Activates the line loopback using inband code.
ANSI FDL PLB
Initiates the transmission of an FDL payload loopup code
toward the far end.
ANSI FDL LLB
Initiates the transmission of an FDL line loopup code
toward the far end.
ANSI FT1 LLB
Initiates the transmission of an FT1 loopback using the
inband code described in T1.403.
No Loopback
Deactivates the loopback.
Remote Loopback can only be used with Fractional T1 if the ANSI FT1 LLB is
selected.