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Installing the OAU 2A
4
Installation at an Intra-NE 2x2 MIMO Site
Installation procedure
1
Follow the antenna installation guide to install the antenna.
The vertical distance between two antennas must meet the requirements specified in
the network plan.
2
Install the ODU on to the antenna.
For the method of installing an XMC ODU, see the RTN XMC ODU Quick Installation
Guide.
3
Install an OAU 2A on a wall or pole.
• Determine whether to install an OAU 2A on a wall or pole based on actual conditions.
• If an OAU 2A needs to be installed on a tower, it is recommended that you install it
at the foot of the tower to facilitate maintenance.
Install a ground cable.
4
Install the device-side ground cable before you climb up the tower.
Install IF cables.
5
Connect the IF ports of the OAU 2A and each XMC ODU using an IF cable.
For the method of making and laying out an IF cable, see the RTN XMC ODU Quick
Installation Guide.
Install an outdoor fiber or network cable.
6
• Connect an outdoor fiber or network cable to a port in the maintenance compartment.
• Lay out the outdoor fiber or network cable.
• Attach a yellow label to the fiber or network cable, and write a number on the label
according to the plan.
Install a DC power cable.
7
• Connect a DC power cable to the DC power port in the maintenance compartment.
• Lay out the DC power cable.
• Select ground points for the DC power cable, and install ground clips.
• Attach a matte white label to the DC power cable.
Before installing a cable, bind the cable section that links the cable connector to the
pole. This will protect the cable connector from damage. Ensure that the length of
cable running from the binding point to the OAU 2A is sufficient to attach the cable
connector to a service port on the OAU 2A.
Waterproof ground clips and IF cable connectors.
8
1
2
8
3
5
PWR GE3(o)
1
8
8
4
6
2
7
8
5
Connected to a
power supply
device
11
Commissioning procedure
Power on the OAU 2A.
1
Use the Web LCT to configure NE data.
2
3
Align antennas.
You can use an alignment scope to
align antennas. For details about how
to install an alignment scope, see the
appendix.
Check the installation.
4
Ensure that the poles where two antennas are
installed at a MIMO site are in parallel. Otherwise,
the XPI may fail to be adjusted to a proper range.
The GE1(e) or GE2(e) port can be used
To NodeB
to transmit/receive electrical services,
and the GE3(o) or COMBO port can be
used to transmit/receive optical services.
In this example, the GE3(o) port is used.
DC
power
cable
Grounded using
DC
a ground clip
power
cable
8
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