Alarm And Status Messages - Fujitsu FLM 150 ADM Maintenance And Trouble Clearing

Maintenance and Trouble Clearing
FJTU-320-515-480
1.4

Alarm and Status Messages

The FLM 150 ADM provides built-in test features to monitor both internal
circuitry and input/output facilities. These features are described in Table 1-2.
• Redundant channel units
• Synchronization units
• Switching units
• Power supplies
• Relays to office alarm systems
• Status LEDs on unit front panels
In addition to the above features, any abnormal or trouble condition triggers
alarm and status messages that are automatically reported to an interface device
(such as a craft interface, OSS, or NMA) logged on the affected system. If no
interface device is logged on when an alarm is generated, the messages can be
retrieved by logging on the system and retrieving all or part of the AO buffer.
For FLM 150 ADM systems using Release 9.1 or earlier system operations
software, no autonomous messages are displayed or stored in the AO buffer if
there is no logon to the craft or OSS interfaces.
With Release 10 and later for the FLM 150 ADM, all autonomous messages are
stored in the AO buffer, regardless of the logon status of the craft and OSS
interfaces. The AO buffer has a capacity of 500 messages. It is a first-in, first-out
(FIFO) buffer.
Current alarms can also be retrieved using the retrieve alarm TL1 command or
using the FLEXR™ alarm window.
Section 3, in this practice, lists the possible alarm and status conditions for the
FLM 150 ADM system, along with the probable causes and suggested corrective
actions.
The system reports critical, major, and minor alarms.
• Office alarms announce trouble occurring at both near-end (NE) and
far-end (FE) locations.
• Self-diagnostic features identify failures of faulty units or lines through
the FAIL or LINE LED on each unit. The status is indicated by the NE
ACT, FE ACT, or ABN LEDs on the AW1A unit or the LINE LED on the
related channel unit.
Issue 9, May 1999
Table 1-2: Built-In Test Features
Feature
FNC and FNC Customer Use Only
1.4: Alarm and Status Messages
Purpose
Support critical data paths within the
system
Provide maintenance personnel with visual
and audible information
Vol. ll, Page 480.1-15