Black Box MWU2000-X21 User Manual
Page 48
48
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E1 Alarm Buffer
The Possible alarms are:
•
LOS (all zeros signal): Loss Of Signal – No signal is received from the data equipment.
•
AIS: Alarm Indication Signal – No signal is received by the connected end equipment.
When an alarm is detected, a note appears at the bottom of the display
(Note: An alarm
has been activate
d), and the message
ALARM EXISTS
is displayed on the menu
header (see Figure 3-1). In addition, the TEST LED will blink.
Fractional EI Parameters Manu
See also Appendix C.
This manual is related to the following products: