PairGain HiGain SOLITAIRE H2TU-C-319 List 1, Technical Practice

Page: 41 / 70

152-319-100-02, Revision 02 Monitoring System Activity and Performance
H2TU-C-319 List 1 and List 1C April 21, 2000 33
Figure 21. H2TU-R DS1 Alarm History Screen
Table 11. DS1 Alarm Descriptions
Screen Alarm Front-panel Alarm Description
H2TU-C DS1 ALARMS ( Figure 20 on page 32 )
LLOS
(a)
(a) Issues a minor alarm (sent to the management unit or the backplane), if enabled.
LLOS Local Loss of Signal—Loss of the H2TU-C DSX-1 input signal.
LAIS
(a)
LAIS Local Alarm Indication Signal—Indicates an AIS (all ones) pattern is transmitted from the
local DS1 output port. The ALMP option determines whether AIS (default) or LOS is sent
towards the CPE.
DBER DBER Bit Error Rate—The DS1 BER has exceeded the built-in 24-hour threshold limits of
approximately 10
-6
.
LOF LOF Loss of Frame—Indicates the incoming DS1 frame pattern is other than the one selected,
ESF or SF, by the FRMG option. Only occurs if the FRMG option is set to SF or ESF.
H2TU-R DS1 ALARMS ( Figure 21 )
RLOS
(b)
(b) AIS-CI is a modified AIS alarm pattern. Equipment not suited to detect AIS-CI still detects this signal as an AIS. AIS-CI is sent
toward the network indicating that an LOS (RLOS) or AIS (RAIS) has been received from the CPE.
RLOS Remote Loss of Signal—Loss of the H2TU-R DS1 input signal.
RAIS RAIS Remote AIS Signal—Indicates an AIS (all ones) pattern is being transmitted from the remote
DS1 output port. By default (see
Figure 24 on page 39 ) AIS-CI
(b)
is sent towards the network.
RAI RRAI Remote Alarm Indication—An RAI (yellow alarm) pattern is transmitted toward the network
when an RAI pattern is detected at the H2TU-R input, and the signal from the network has defects.
LRAI LRAI Line (Unit) Remote Alarm Indication—An RAI condition is detected at the remote and the
signal from the line unit is error-free.
PRM-NE PRMN Performance Report Messaging - Near End—The count of the PRM-NE register at the
H2TU-R exceeds the 10
-6
BER threshold at 648 events since 12:00:00 AM.
PRM-FE PRMF Performance Report Messaging - Far End—The count of the PRM-FE register at the H2TU-R
exceeds the 10
-6
BER threshold at 648 events since 12:00:00 AM.
DBER DBER Bit Error Rate—The DS1 BER has exceeded the built-in 24-hour threshold limits of
approximately 10
-6
.
LOF LOF Loss of Frame—Indicates the incoming DS1 payload does not contain the specific frame
pattern, ESF or SF, selected by the FRMG option. Only occurs if the FRMG option is set to SF
or ESF.
Monitor Performance Event Log Config Inventory Rlogon Help
H2TU-R DS-1 Alarm History
------------------------------------------------------------------------------
Alarm First Last Status Count
RLOS 04/03/00 00:00 04/03/00 00:45 ALARM 12
RAIS OK 0
RAI OK 0
LRAI OK 0
PRM-NE DISABLED 0
PRM-FE DISABLED 0
DBER 04/03/00 00:37 04/03/00 00:45 OK 7
LOF OK 0
Press: C(l)ear Alarm History
------------------------------------------------------------------------------
Press <Space> to cycle through Interface : H2TU-R DS-1
choices and <Enter> to view Statistics : Alarm History
ID: xxxx--xxxx--xxxx--xxxx 04/15/00 12:30:01 H2TU-C System: Alarm