150-402-111-02
Navigating the Maintenance Terminal Screens
HRU-402 List 1A
December 8, 1998
23
N
AVIGATING
THE
M
AINTENANCE
T
ERMINAL
S
CREENS
This section describes the use of the maintenance terminal software for
viewing system performance.
L
OGIN
The HRU-402 supports both local and remote login capabilities. Remote
login connects the remote unit to the HLU using the HDSL Embedded
Operation Channel (EOC) as the data link between the two units. Remote
login uses essentially the same menus and screens as those at the HLU. See
the appropriate line unit technical practice for more information about the
menus and screens.
The HRU-402 always reverts to its remote login mode, if possible. Once in a
remote login mode, it will remain there until something occurs that inhibits a
remote login session. Then, it is forced to be a local login mode.
All line units that support doubler applications support the remote login
feature. The only time the HRU will enter a local login session is when the
remote is powered up but both HDSL loops are not in sync with the HLU.
The screen displays shown in this practice are typical for
remote login sessions for systems comprised of the following
line units and doublers: HLU-231 List 8x, HLU-319 List 5x,
HLU-388 List 5x, HDU-409, HDU-407 and HDU-404. These
screens differ somewhat from those obtained when the
HRU-402 is used with older generation line units. Refer to the
individual line unit technical practice for specific remote login
screen display formats.
