User Manual

Table Of Contents
Optical Master Unit
PRODUCT DESCRIPTION AND USER’S MANUAL
© Axell Wireless Ltd A1829300 rev H 22 (86)
2.2.6 Rack Communication Board
The Rack Communication Board is placed in slot 12.
This module serves as a communications link between the Control Module and the Fiber Optic Converters.
The unit is also used when several OMUs are to be linked together. The cables for cascading OMUs are
provided by Axell Wireless in case these are needed. The connections are RJ45. How to link the OMUs to one
another is described in section 6 Installation.
There are three LEDs that reflect the status of the communication between the Control Module and the Fiber
Optic Converters.
UL DATA and DL DATA reflect the data communication that is ongoing between this module, the
Control Module and the Fibre Optic Converters.
Link OK is lit when the communication between this unit and the Control Module has been established.
ERR
PWR
UL
DATA
DL
DATA
Link OK
IN OUT 1
OUT 2
ERR
PWR
UL
DATA
DL
DATA
Link OK
IN OUT 1
OUT 2
PWR Indicates that the power is on
ERR Indicates that there is something wrong in the module
UL DATA Ongoing communication in the uplink direction
DL DATA Ongoing communication in the downlink direction
Link OK Communication with Control Module established
RJ45 connectors
2.2.7 Power Supply
The Power Supplies are placed in slot 13 and 14.
Each OMU unit is equipped with one or two power supplies. There are power supplies
for 115 - 230VAC 50/60 Hz and 24 - 48VDC.
It is possible to mount two different power supplies (with different voltage) if they are
fed from two different sources.
The power supplies works in parallel and are independent of each other.
In OK
Out OK
There are two green LEDs on the Power supplies
“Out OK” indicates that the power levels the unit is delivering
are OK
“In OK” indicates that the input power to the unit is OK
Each Power Supply can be switched off using the switches on the front panel.
Note! Even when the power supplies are switched off the OMU still has live power from the power input on the
back.
In OK
Out OK
On
Off