Section 150-431-114
Release 01
Page 50
21. SYSTEM MAINTENANCE MENU SCREENS
21.01
Figure 16 is the Maintenance Terminal Main
Menu screen. Its eight sub-menus provide many
useful provisioning, test and monitoring tools
.
21.02
Selection “H” from the Main Menu screen
allows the Circuit ID number to be set. It is
limited to 24 alphanumeric characters. It, like the system
settings, is stored in NVRAM and thus remains when
power is lost. Note that the Circuit ID number is not
available at the HRU-412 Maintenance Port.
21.03
Figure 17 through Figure 20 show the HLU-431
List 2D Span Status screens for two-doubler
applications. The Span 1 screen contains data on the two
HDSL loops between the HLU-431, List 1D and the first
doubler. The Span 2 screen refers either to the loops
between the first doubler and the HRU-412, for one-
doubler circuits, or, to the loops between the first and
second doublers, for two-doubler circuits. The Span 3
screen refers to the loops between the second doubler and
the HRU-412, for two-doubler circuits. All status screens
contain the same DS1 interface information.
21.04
Figure 21 shows the Set Clock Menu screen.
The Time and Date are both set with this menu.
Set the hours and minutes, using the military (24-hour)
convention. Setting the seconds is optional. Enter the
date in the sequence and format shown. List 1 HRU-412
units, having software versions 6.4 and above, and all
HRU-412 units with list numbers greater than 5, can be set
to the same time and date as the HLU-431, List 1D by
entering a U to the “Update Remote” query. All time
information is lost when power is removed. The last date,
however, is retained in NVRAM and reappears when
power is restored.
21.05
Figure 22 shows the System Settings Menu
screen. All 14 user options can be set from this
screen. To change any option, enter the character key
which is shown inside the parentheses within each
parameter description. This causes the screen to refresh
with the new. After all parameters have been selected,
press E (Exit) then C (Confirm). The newly selected
parameters are now activated.
21.06
Figure 23 shows the Loopback Menu screen
for a two-doubler system. Each of the four
modules can be looped back toward the network or the
customer from this screen. NDU2 and CDU2 are not
available for one-doubler applications and only NLOC,
NREM, CLOC and CREM are available for non-doubler
applications.
21.07
Figure 24 through Figure 27 show the
Performance Data screens for doubler
applications. The “Errored Seconds” and “Unavailable
Seconds” for both HDSL loops and each T1 input are
listed at 15-minute intervals over a four-hour time period.
The Span 1 screen contains data on the two HDSL loops
between the HLU-431, List 1D and the first doubler
(HDU1). The Span 2 screen refers either to the loops
between the first doubler (HDU1) and the HRU-412, for
one-doubler circuits, or, to the loops between the first and
second doublers (HDU1 and HDU2), for two-doubler
circuits. The Span 3 screen refers to the loops between the
second doubler and the HRU-412, for two-doubler circuits.
All status screens contain the same DS1 interface errors.
Earlier and later data, in four-hour chunks on six different
screens per span, can be accessed by pressing P (Previous)
or N (Next) respectively. Performance data from the
different spans can be accessed by entering S (Span). All
of the counters can be set to “0” by pressing C (Clear)
from the HLU-431, List 1D Span Status screen shown in
Figure 17 through Figure 20. Note that since the HLU-
431, List 1D is considered the master module, this clears
all performance data screens at both the HLU-431, List 1D
and the HRU-412. The RS-232 terminal interface at the
HRU-412 does not allow the counters to be cleared.
21.08
Figure 28 through Figure 31 show the 7-Day
Performance History screens for doubler
applications. The “Errored Seconds” and “Unavailable
Seconds” for both HDSL loops and each of the two DS1
inputs are listed for the current and previous seven days.
The Span 1 screen contains data on the two HDSL loops
between the HLU-431, List 1D and the first doubler
(HDU1). The Span 2 screen refers either to the loops
between the first doubler (HDU1) and the HRU-412, for
one-doubler circuits, or, to the loops between the first and
second doublers (HDU1 and HDU2), for two-doubler
circuits. The Span 3 screen refers to the loops between the
second doubler and the HRU-412 for two-doubler circuits.
All status screens contain the same DS-1 interface errors.
All of the counters can be set to “0” by pressing C (Clear)
on the HLU-431, List 1D Span Status screen (see Figure
17 through Figure 20). Note that since the HLU-431, List
1D is considered the master module, this clears all
performance screens at both the HLU-431, List 1D and the
HRU-412. The RS-232 terminal interface at the HRU-412
does not allow the counters to be cleared.
