User Manual

OPTICAL MASTER UNIT
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd 23
3.3.1.1.2 Relay
The External Alarm and Battery Module contains a relay output. The relay can be used to indicate a
summary status of the repeater. Each alarm source can be configured to be affecting the relay or not.
Note! The relay status is never affected by the login / logout alarm parameters.
For installation testing purposes, it is possible to test the open / close function of the relay. This test
procedure closes the relay for 3 seconds, then opens it for 10 seconds, and finally closes it for 3
seconds before going back to original state.
The relay can be set to close or open to indicate an alarm. This can be changed by changing the
polarity.
Click on Relay
Test
Relay polarity
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When the OMU has been installed at site and the remote communication has been enabled the OMU
can be integrated to the Axell Element Manager. This is done by the operator of the AEM. After
entering the telephone number to the OMU, the AEM dials up the OMU, downloads all the OMU
parameters and statuses into a database. When all parameters have been downloaded, the AEM
configures the OMU with the telephone number where alarms and reports should be sent, and
optionally with a secondary telephone number where the OMU can dial in case connection to primary
number fails.
When heartbeat reports and alarms are sent from the OMU to the AEM also the latest information
about the status and RF-configuration is included. This means that the AEM operator always has
information about the current status in the AEM database (and do not need to call the repeater to find
this out).
Note! Once the OMU is integrated to the AEM, all changes to the OMU should preferably be done
from the Axell Element Manager in order to ensure that the database always contains correct
information.
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Install the
repeaters
Install the fibre fed repeaters. See the User’s Manual for the repeaters.
Install the fibres to
the repeaters
Make sure the fibre link between the OMU and all of the repeaters are
working.
Make sure all connectors in the link have APC type connectors.
Add all nodes to
the OMU-
Repeater System.
Select “System Nodes”
Chose “Add node…” from the “Node” drop down menu.