LTPH-TP-1047-01, Issue 1
Monitoring System Activity and Performance
H2TU-R-402 List 5E
March 12, 2001
21
Figure 18.
H2TU-C DS1 Alarm History Screen
Table 7.
H2TU-R DS1 Alarm Descriptions
Screen Alarm
Front-Panel Alarm Description
RLOS
RLOS
Remote Loss of Signal— Loss of the H2TU-R DS1 input signal.
RAIS
RAIS
Remote Alarm Indication Signal—Indicates an AIS (all ones) pattern is being received at
the H2TU-R DS1 input port. By default AIS-CI
(a)
is sent towards the network.
(a) 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.
RAI
RRAI
Remote RAI - Remote Alarm Indication at the H2TU-R—Indicates an RAI alarm (yellow)
from the CPE with errors from the line unit or network.
TX RAI-CI
TRCI
Transmit RAI-CI - Remote Alarm Indication at the H2TU-R—Upon reception of an RAI
(yellow alarm) from the CPE, the H2TU-R sends a RAI-CI towards the network if the
network signal received at the H2TU-R is clear. If the network signal is impaired (LOS, AIS
or LOF), then the RAI is passed on to the network unaltered. This is applicable to SF or
ESF framing. In an all SF environment, RACI must be enabled to convert SF RAI to SF
RAI-CI.
PRM-NE
PRMN
Performance Report Monitoring - 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 Monitoring - 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
.
Monitor
Performance
Event Log
Config
Inventory
Report
Rlogon
Help
H2TU-C DS1
Alarm History
-----------------------------------------------------------------------------
Alarm
First
Last
Status
Count
LLOS
OK
0
LAIS
OK
0
DBER
DISABLED
0
Press: C(l)ear Alarm History
-----------------------------------------------------------------------------
Use <Space> to cycle through
Interface
:
H2TU-C DS1
choices and <Enter> to view
Statistics :
Alarm History
ID: xxxx--xxxx--xxxx—-xxxx
02/01/2001 12:30:01
H2TU-C
System: Alarm
