Section 150-431-114
Release 01
Page 28
16. SYSTEM MAINTENANCE MENU SCREENS
16.01
Figure 7 is the Maintenance Terminal Main Menu
screen. Its eight sub-menus provide many useful
provisioning, test and monitoring tools. Figure 8 shows
the HLU-431, List 1D Span Status screen.
16.02
Figure 9 shows the Set Clock Menu. 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.
16.03
Figure 10 shows the System Settings 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
parameter. After all parameters have been selected, press
E (Exit) then C (Confirm). The newly selected parameters
are now activated.
16.04
Figure 11 shows the Loopback Menu screen
for non-doubler applications. Loopbacks NLOC,
NREM, CLOC and CREM are available.
16.05
Figure 12 shows the Performance Data screen for
non-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. Earlier and later data, in four-hour chunks on
six different screens, can be accessed by pressing P
(Previous) or N (Next) respectively. All of the counters
can be set to zero by pressing C (Clear) from the HLU-
431, List 1D Span Status screen shown in Figure 8. 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.
16.06
Figure 13 shows the 7-Day Performance
History screen. 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. All of the counters can be set to zero by
pressing C (Clear) on the HLU-431, List 1D Span Status
screen (see Figure 8). 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.
16.07
Figure 14 shows the Alarm History screen
for non-doubler applications. The alarms are
defined in Section A Paragraph 4.01. The “First” and
“Last” columns contain the time and date stamp of the first
and last occurrence of each alarm. The “Current” column
shows the status of each alarm. The “Count” column lists
the number of times each alarm occurred. All the data can
be cleared by pressing C (Clear). The maximum non-
overflowing count is 999.
16.08
Selection “H” from the Main Menu allows the
Circuit ID number to be set. It is limited to 24
alpha- numeric 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.
