Alarms
350-200-115-02, Issue 2
16
September 25, 1998
HLU-200 List 1E
Figure 3.
GNLB Loopback Configuration with Doublers
CI/DS1
DSX-1
* The Smart-Jack loopback is a metallic loopback in the HRU Lists 6 and 7. It is a logic loopback
in HRU Lists 1 through 5.
** Set the SAIS option to ENA to send the AIS pattern to the CI during Smart-Jack Loopback.
Loopbacks
toward
customer
HDSL
HRU
CLOC
HDSL
5 in 7
6 in 7
HRU
HLU
CREM
HLU
Loopbacks
toward
network
HDSL
HLU
NLOC
All 1s
All 1s
All 1s
All 1s
All 1s
HRU
TLOS
SMJK*
NREM
HRU
HRU
HDSL
HDSL
HDSL
HLU
HLU
2 in 5
3 in 7
LOGIC
4 in 7
HRU
HLU
All 1s**