ADC HiGain HLU-200 User Manual page 22

Alarms
Loopbacks
toward
network
DSX-1
All 1s
All 1s
* 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.
Figure 3. GNLB Loopback Configuration with Doublers
16
HLU
HLU
HLU
HLU
4 in 7
NLOC
HLU
6 in 7 HDSL
CREM
HLU
HDSL
September 25, 1998
350-200-115-02, Issue 2
HRU
LOGIC
HDSL
TLOS
HRU
3 in 7
HDSL
NREM
HRU
2 in 5
HDSL
SMJK*
HRU
HDSL
HRU
Loopbacks
toward
customer
HRU
5 in 7
CLOC
All 1s
All 1s
All 1s**
CI/DS1
All 1s
HLU-200 List 1E