User Manual

Table Of Contents
Optical Master Unit
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd A1829300 rev H 19 (86)
2.2.3 Control Module
The Control Module is placed in slot 9 or 11. Note! If there is a wireless modem mounted in the Control
module it has to be placed in slot 11 to access the modem antenna. See section
2.2.8 Modem Antenna
Connection.
The Control Module manages and controls the OMU and handles alarms. The Control Module
keeps track of all modules in the OMU based on their serial numbers. The Control Module
collects data from active modules within the OMU such as Optic Fibre Converters and Rack
Communications Board. The collected data is processed and if an error is detected the Control
Module can send an alarm via a built in modem to an Operations and Maintenance Center
(OMC). All alarms are also stored for later access via the LMT port.
The Control Module can collect the status of 4 external alarm sources connected to the
External Alarm and Battery Module. The summary alarm status of the OMU and the whole
system can be indicated via a relay port. This relay can be used to indicate to external
equipment if the OMU-Repeater system is functioning properly.
The Control Module includes a Real Time Clock (RTC). The RTC keeps track of at what time
alarms and events occur. This RTC has its own backup battery.
The Control Module can be configured in two different modes:
Standalone Mode – the OMU only reports its own status
Node Master – being a node master means that the OMU controls all slaves (repeaters)
connected to it and manages all communication to the AEM for the whole OMU-Repeater
system.
2.2.3.1 Connectors
The Control Module contains a RS232 port used for local access to the repeater, the LMT Port.
The Control Module has an Ethernet connection for remote access placed on the front panel.
If the Control Module is equipped with a wireless modem, a SIM card holder is accessible on the front panel.
Note! The USB connector is not used in this version of the product.
The Control Module has four LEDs which give information regarding the status
of the OMU.
If the OMU is configured for Ethernet communication the two LEDs Modem
Power and Modem Status do not fill any function and can be disregarded.
Modem Status
Modem Power
Status
Login
Blue LED - Login
Quick flash Control Module switched on, someone logged in locally and/or remotely
Off (except for a quick flash every 10th
second)
Control Module switched on, no one logged in
Off (permanent) Control Module switched OFF
Red LED - Status
Quick flash Control Module switched on, one or more errors/alarms detected
Off (except for a quick flash every 10th
second)
Control Module switched on, status OK
Off (permanent) Control Module switched off
Modem Status
Modem Power
Status
Login
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LMT Port
Ethernet