User Manual

AXELL OPTICAL MASTER UNIT
PRODUCT DESCRIPTION AND USER’S MANUAL
12 © Axell Wireless Ltd
The configuration at delivery is Alternative 1.
Connect the OMU
to the BTS or to
the repeater.
The connector for the uplink and the downlink connector are N-type and
placed on the OMU rear panel.
Attach the coupler
The OMU is connected to the BTS (or the repeater) via a directional
coupler (illustrated below).
The coupler is connected in series with the BTS antenna (see
2.4.2 Fiber Optic Connections
Connect the fibres
The fibre connectors on the Fiber Optic Converters are SC/APC type.
Note!
Angled connectors, APC, need to be used throughout the whole link
between the OMU and the repeater. The angle needs to be 8 degrees.
Also the ODF connections need to be APC type. The fibre must be
monomode type.
The fibre from each Fiber Optic Converter is connected to an ODF
(Optical Distribution Frame) unit. The ODF is a cross connection for fibre
cabling. At the site of the repeater, there is also an ODF for further
connection to the repeater.
Note! Be careful with the fibres. They cannot be bent too sharply. Make
sure there is enough room to safely close the door of the sub rack. Clean
the fibres before they are connected. See instruction below.
This product is equipped with Class 3B lasers, as per definition in EN
60825-1.
Caution!!!
Un-terminated optical receptacles may emit laser
radiation.
Do not stare into beam or view with optical
instruments.
2.4.2.1.1 Cleaning Optical Connectors
An unclean optical connector is often to may cause for reduced system
performance. A bit of dust or oil from a finger can easily interfere with, or