User Manual

Table Of Contents
Document Name: Common Commands and Attributes v1.3.0 Revision: 1.2
7.5.2 Usage
Attribute type: Read only
Same as attribute AL1, but replies with configuration for alarm sources UAD, UDE,
UPM, UDM and UPW.
7.6 ALA – Configuring the alarm parameters
7.6.1 Overview
This attribute allows for reading and writing of the alarm configurations.
7.6.2 Usage
Attribute type: Read and Write
This attribute configures the alarm measurements and alarm handling on an
attribute by attribute basis.
Format:
<attribute> <enab> <ack> <usage> <lower> <upper> <time>
<attribute> is the alarm source to configure, such as TEM, EX1 etc.
<enab> has double functionality. It determines whether an alarm should be send if
error is detected, and it also configures whether the alarm relay should be affected
by the alarm source.
<enab> = 0 means alarm transmission enabled, but alarm doesn’t affect the relay
output
<enab> = 1 means alarm transmission disabled, and does not affect the relay.
<enab> = 2 means alarm transmission is enabled, and alarm affects the relay
output.
<enab> = 3 means alarm transmission is disabled, but alarm affects relay output
<ack> determines whether an alarm requires to be acknowledged or not.
<ack> = 0 means Acknowledge required
<ack> = 1 means No acknowledge required
When using circuit switched data, an alarm is considered acknowledged when the
repeater has successfully logged in to the OMC, and delivered the alarm. In case of
SMS, an alarm is considered acknowledged when an acknowledge message is
received from the main address or when delivered to the SMSC, depending on
configuration in the SAC attribute. The alarms can also be acknowledged with the
command ACT ACK when logged in locally or remotely. If an alarm is not
acknowledged, it will be retransmitted up to MNR (maximum number of
retransmissions) times, with RCA (repetition cycle for alarms ) minute’s interval.
Refer to attributes MNR and RCA on how to configure these settings.
<usage> is a threshold indicator, indicating how thresholds are used for this
particular alarm source.
<usage> = 1 means that both thresholds are used for alarm calculation.
<usage> = 2 means that lower threshold is used
<usage> = 3 means that upper threshold is used
<usage> = 4 means that thresholds are ignored, i.e. digital measurement.
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