Section 150-611-100
Revision 02
Page 11
11.04
The transmit and receive T1 DSX-1 ports
have splitting access and bridging miniature
210 jacks as shown in Figure 2. Connecting one
cable between the two BDG jacks and another
between the two SPAN jacks splits the XMT and
RCV and creates metallic loopbacks towards both
the DSX-1 and the HLU.
11.05
Figure 7 shows the HLU status screen. It
contains useful information on the VHDSL
loops and the DS1 input. Figures 11, 12 and 13
show the performance data and alarm history
screens. All the performance data shown in Figures
8, 11 and 12 can be cleared to zero by selecting the
(C)lear option from the HLU Status Screen shown in
Figure 7. Note that since the HLU is considered the
master module, this clears all performance data
screens at both the HLU and the HRU. Clearing the
data from the HRU only clears performance data at
the HRU. It does not clear it at the HLU.
AI
S
AI
S
NLO C
C REM
AI
S
HRU-612
AI
S*
SM JK*
VHDSL
VHDSL
VHDSL
VHDSL
VHDSL
NREM
AI
S
DSX-1
C I
LO O PBAC KS
TO W ARDS
NETW O RK
LO O PBAC KS
TO W ARDS
C USTO M ER
HLU-611
HLU-611
* AIS is only sent here if the SAIS option is enabled.
HRU-612
C LO C
HRU-612
HLU-611
HLU-611
HRU-612
HRU-612
HLU-611
LO G I
C
AIS
VHDSL
TLO S
LO G I
C
HRU-612
LO G I
C
LO G I
C
M ETALI
C
DS1
3 i
n 7
2 i
n 5
4 in 7
6 i
n 7
5 i
n 6
Figure 5. HLU-611 Loopback Configurations.
