Higain Loopbacks - ADC 2 User Manual

Loopback Operation in HiGain Systems
HLU HLU HLU HLU
HLU HLU HLU HLU
HLU HLU HLU HLU
SPAN 4
HLU SPAN 1
NLOC
1111000 4-in-7
HLU HLU HLU
HLU
CREM
6-in-7 1111110
All ones HLU HLU HLU
HLU
All ones HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU HLU
HLU HLU HLU HLU SPAN 1
All ones
* Set the SAIS option to ENA to send AIS (indicated by an all ones pattern) to the CI during SmartJack loopback, NREM, and TLOS.
Use the 3-in-5 code to loop down.
For more information about other doubler loopback commands, see the
appropriate HLU user documentation.
24
Loopbacks Toward Network
HDSL SPAN
HDSL SPAN
HDSL SPAN
1 NDU1 U D C 1 NDU2 U D C
2-in-6 3-in-6
6 i n 4 6 i n 4
SPAN 2
110000 111000
0 0 1 1 1 1 0 0 1 1 1 1
HDU HDU
9 0 - 4 U D H 9 0 - 4 U D H
HDSL SPAN
Loopbacks Toward Customer
HDSL SPAN
HDSL SPAN
CDU1 CDU2
4-in-6 5-in-6
SPAN 2
111100 111110
HDU HDU
Figure 6. HiGain Loopbacks
April 30, 2003
1
1 NDU3 U D C NDU4
6
SPAN 3 SPAN 4
1010001 1010010
0 0 1
HDU HDU
9 0 - 4 U D H 9 0
CDU3
1011001 SPAN 4
SPAN 3 1011010
HDU
LTPH-UM-1234-01
TLOS
HRU-412 HRU-412
All ones
LOGIC HRU-412
HRU
SMJK*
HRU-412 HRU-412
2-in-5 All ones
11000 HRU-412
HRU
NREM* NREM
HRU-412 HRU-412 HRU-412 HRU-412
3-in-7 3 in 7
1110000 1110000 HRU-412 HRU-412 All ones
HRU-412 HRU
U D C
i n 4
HRU
SPAN 5 All ones
1 1 1
- 4 U D H
CLOC
HRU-412 HRU-412
HRU 5 IN 7
All ones
HRU-412
HRU
CLOC CLOC CLOC CLOC
HRU-412 HRU-412 HRU-412 HRU-412
1111100 5-in-7 5 IN 7 5 IN 7 5 IN 7
HRU-412 HRU-412 HRU-412 HRU
CDU4
SPAN 5
HRU
HDU
H0082-A
HDU-409 Lists 1, 2, and 3