Samsung Mobile WiMAX Outdoor RAS SPI-2331, System Description

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Mobile WiMAX Outdoor RAS SPI-2331 System Description/Ed.02
© SAMSUNG Electronics Co., Ltd. 4-23
4.3 Alarm Signal Flow
The detection of failures in the outdoor SPI-2331 can be implemented by hardware
interrupt or software polling method. The failures generated in the outdoor SPI-2331 are
reported to the management system via the SNMP trap message.
Failure Alarm Types
y
System Failure Alarms
TIME SYNC FAIL, GPSR FAIL, TOD FAIL, LOCKING FAIL, DISK FULL, etc.
y
Environmental Failure Alarms
HEATER FAIL, TEMPERATURE HIGH, LOW, PORT DOWN, ACR
COMMUNICATION FAIL, etc.
y
UDA
2Tx, 6Rx UDAs are supported.
Failure Report Message Flow
The main OAM(UFM) collects the failures detected from ULDB, ULRB and UDA interface
of the outdoor SPI-2331 and notifies them to the management system. At this time, it only
reports the upper failure information by using the failure filtering function. If it receives the
command to inhibit the report for a specific failure or all system failures from the
management system, it does not report the failure report.
The flows for the failure detection and the report message are as shown in the figures below:
Figure 4.16 Alarm Signal Flow of Outdoor SPI-2331
WSM
(SNMP Manager)
ULDB
ULRB
ULDB
ULRB
UCCM*
Heater
Controller*
Alarm detection
Alarm filtering
Alarm Report
(SNMP trap)
Alarm detection
Alarm filtering
Alarm Report
(SNMP trap)
Outdoor SPI-2331
Outdoor SPI-2331
UCCM*
Heater
Controller*
* UCCM and heater controller are mounted on ULDB.