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Testing LTPH-UM-1049-02, Issue 2
60 January 9, 2002 H2TU-C-319 List 4E
Figure 32. Loopback Modes
All ones
All ones
HDSL2 SPAN
C742 ‡
All ones
HDSL2 SPAN
D3D3 ‡
HLUHLUHLU
CREM
HRU-412
5 IN 7
CLOC
HRU-412
HDSL2 SPAN
HLUHLUHLU
HRU-412
HRU-412
5 IN 7
CLOC
HRU-412
HRU-412
5 IN 7
CLOC
HRU-412
HRU-412
5 IN 7
CLOC
HRU-412
HRU-412
CLOC
All ones
HLUHLUHLUHLUHLUHLUHLUHLUHLUHLUHLUHLUHLUHLUHLU
D3D3 ‡
NLOC
HRU-412
HDSL2 SPAN
HLUHLUHLU
HRU-412
HRU-412
3 in 7
NREM
HRU-412
HRU-412
HRU-412
HDSL2 SPAN
HDSL2 SPAN
HLU
HLU
HLU
HLU
HLU
HLU
HRU-412
HRU-412
HRU-412
HRU-412
C742 ‡
H2TU-C
H2TU-C
NREM*
TLOS*
LOGIC
LoopbacksToward Customer
CI-Customer Interface
DSX-1
LoopbacksToward Network
* Set the NLBP option to AIS to send AIS (indicated by an all ones pattern) for any network loopback.
H2TU-R
H2TU-R
H2TU-R
H2TU-R
H2TU-R
All ones
H2TU-C
H2TU-C
H2TU-C
H2TU-C
FF02
1110000 3-in-7
FF1E
1111000
3F1E
6-in-7
1111110
3F02
1111100 5-in-7
✝
✝
✝
✝
✝
A3LB and A4LB loopback codes.
‡ A2LB loopback code.
4-in-7
GNLB loopback codes.
All ones
HRU-412
HRU-412
HRU-412
11000
1-in-6
SMJK*
H2TU-R
2-in-5
1000000