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Chapter 4. Status Menu
View History
Port Status
4-4
Network (Ni)
Red Alarm
Loss Of Signal
End Of List
This menu item both displays and clears the accumulated
status changes of the unit.
displays a history of the last 20 status
V
H
IEW
ISTORY
changes in the unit, including the date, time, and type of
change. The unit also records for viewing the date and
time an alarm became active and inactive, as well as the
date and time of test activation and deactivation.
To clear the V
IEW
displays the signals monitored on the data
P
S
ORT
TATUS
ports. For example, the Nx/DBU interface monitors the
RTS, CTS, RD, and RD, along with other signal lines.
When a port is selected, the terminal indicates if the signal
is present.
The base Nx interface shows the status screen listed in this
section. When using other option cards, refer to the ap-
propriate separate manual for a definition of any status
screens offered.
The P
S
ORT
TATUS
item.
TDU 120e User Manual
Table 4-1. Alarm Message Display
Active Alarms
H
display, press
ISTORY
of Nx/DBU shows how to use this
.
C
61202156L2-1
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