Remote Loopbck - ADTRAN TSU LT User Manual

REMOTE LOOPBCK

61202060L2-1
Activates the same loopbacks as the
This uses either the inband loopup code as specified by
AT&T 62411 for line loopback (ATT In-Band LLB), or the FDL
as specified in ANSI T1.403 for payload and line loopback
codes. An FDL (formerly TABS) maintenance message
corresponding to AT&T TR54016 can be used for payload
loopback as well.
No Loopback
Deactivates the loopback.
V.54 Inband PLB
Indicates inband transmission of V.54 loopup pattern in
channels occupied by DTE data only. This choice should be
used for public fractional network.
AT&T Inband LLB
Activates the line loopback using inband code.
AT&T Inband LLB
Activates the line loopback using inband code.
ANSI FDL LLB
Initiates the transmission of an FDL line loop-up code toward
the far end.
AT&T PLB
Indicates the transmission of the PLB maintenance on the
FDL.
Only V.54 loopbacks can be used with fractional T1 since the full
T1 stream including the FDL is not transported to the far end (un-
less it is a private network).
TSU LT User Manual
Chapter 7. Test Menu
but at the far end.
LOCAL
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