ADC H4TU-C-231-L5A User Manual page 54

Testing
H4TU-C HLU HLU HLU
H4TU-C HLU HLU HLU
H4TU-C
HLU HLU HLU
H4TU-C
SPAN 4
FF1E
NLOC D3D3 ‡
1111000
4-in-7
HLU HLU HLU
H4TU-C
3F1E
CREM
D3D3 ‡
1111110
6-in-7
All ones HLU HLU HLU
H4TU-C
HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU
All ones
H4TU-C
HLU HLU HLU
All ones
H4TU-C
RLB
HLU HLU HLU
H4TU-C
* Set the NLBP option to AIS to send AIS (indicated by an all ones pattern) for any network loopback.
=
A3LB loopback codes.
‡ A5LB loopback codes.
GNLB loopback codes.
The H4TU-C is enhanced to respond to the IR Query LPBK code (D5D5) when a SMJK loopback
is activated.
46
Loopbacks Toward Network
HDSL4 SPAN
HDSL4 SPAN
HDSL4 SPAN
=
FF04
C741 ‡
1 NDU1 U D C
2-in-6
6 i n 4
SPAN 1
110000
0 0 1 1 1 1
H4D1
9 0 - 4 U D H
=
HDSL4 SPAN
=
Loopbacks Toward Customer
HDSL4 SPAN
HDSL4 SPAN
=
3F04
C741 ‡
CDU1
4-in-6
SPAN 1
111100
H4D1
Loopbacks From H4TU-R Front Panel
HDSL4 SPAN
Figure 28. Loopback Modes
October 15, 2003
=
FF06
C754 ‡
1 NDU2 U D C
3-in-6
6 i n 4
SPAN 2 SPAN 3
111000
0 0 1 1 1 1
H4D2
9 0 - 4 U D H
=
3F06
C754 ‡
CDU2
5-in-6
SPAN 2 SPAN 3
111110
H4D2
LTPH-UM-1253-01
TLOS*
HRU-412 HRU-412
LOGIC HRU-412 All ones
H4TU-R
SMJK*
HRU-412 HRU-412
2-in-5 All ones
11000 HRU-412
H4TU-R
=
FF02
NREM* NREM
C742 ‡
1110000 3-in-7
HRU-412 HRU-412 HRU-412 HRU-412
3 in 7 All ones
HRU-412 HRU-412
HRU-412 H4TU-R
All ones
H4TU-R
CLOC
HRU-412 HRU-412 H4TU-R
5 IN 7
All ones
HRU-412
H4TU-R
=
3F02
CLOC CLOC CLOC CLOC
C742 ‡
1111100 5-in-7
HRU-412 HRU-412 HRU-412 HRU-412
5 IN 7 5 IN 7 5 IN 7
HRU-412 HRU-412 HRU-412 H4TU-R
H4TU-R
LLB
H4TU-R
H0197-A
H4TU-C-231 List 5AA