Verilink WANsuite 5370 (34-00310.D) Product Manual - Manual (Page 204)

5-6 W A N s u i t e 5 3 7 0
Figure 5.7 Alarms Menu Tree
Network Alarm Stats Menu
Selecting the NET ALARM STATS option displays the “Net 15-Min Perf”
screen. This screen provides the network signal alarm states for the types of
alarms described in the following paragraphs.
To the right of each alarm type on the bottom line of the LCD display are two
sets of three-digit numbers separated by a slash (e.g., 000/045). The first three
digits indicate the number of errors that have occurred during the past 15
minutes. The second three digits indicate the established alarm threshold. An
asterisk (*) will appear in front of these numbers when the unit is in alarm for
that parameter.
LOS Loss of Signal
−
the number of seconds for which the receiver failed to see
received signal strength above its lower operating limit. The default alarm
threshold for this condition is set at 5.
OOF Out of Frame
−
the number of 1-second periods in which a frame sync loss
occurred. Often the receiver will be able to bridge bit errors and still maintain
frame synchronization. This is true since a frame consists of many bits. The
default alarm threshold for this condition is set at 5.
OOS Out of Service
−
the number of 1-second periods in which the unit is out of
service. The default alarm threshold for this condition is set at 0.
BPV Bipolar Violation
−
the number of times the signal failed to observe the rules
for changing the polarity of the logic “1” transmitted signal. The default alarm
threshold for this condition is set at 0. This means that this alarm is initially
turned off.
NOTICE: Alarm detection and generation are per the guidelines set forth in ANSI
T1M1.3. Other relevant standards include ANSI T1.403 and AT&T PUB
54016.
Net
Alarm Stats
Alarms
Serial 1
Net 15-Min.
Performance
LOS
OOF
OOS
BPVS
000-899 Yes, No
Alarms
Reset Timer
Rst Alarms
DTR Alarm OK
Serial 2
DTR Alarm OK