Testing LTPH-UM-1049-02, Issue 260 January 9, 2002 H2TU-C-319 List 4EFigure 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