Check Hardware Installation Quality

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

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Check Hardware Installation Quality

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Color: R153 G0 B0

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CONTENT

• Check Antenna Installation

• Check ODU Installation

• Check IF Cable Installation

• Check IDU Installation


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18pt Color:Black



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Antenna Installation Check List

Check Item Result

1 The matter that is paint break off and distorted can not appear on antenna. The antenna must be installed in the right height and position and polarization according to the design document or customer's instruction.

2 The fixation of antenna and pole are reliable, all screws should be tightness. For the more than 1.2m antenna, the side strut must be installed and fixed position is correct.

3 Antenna identifier: The identifier of each antenna should be labeled with opposite site name or ID.





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Check Antenna Installation

The matter that is paint break off and distorted can not appear on antenna.

The antenna must be installed in the right height and position and polarization according to the design document or customer's instruction.





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The fixation of antenna and pole are reliable, all screws should be tightness.

Each screw should be fastened well.





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For the more than 1.2m antenna, the side strut must be installed and fixed position is correct.

1.Usually strengthening rod and hanging bracket cannot locate at one side of antenna; 2.The height difference of two fixing points for strengthening rod should be as small as possible and the angle between strengthening rod and horizon could not over ±25º.





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Antenna identifier: The identifier of each antenna should be labeled with opposite site name or ID.





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ODU Installation Check List

Check Item Result

1 ODU's and hybrid coupler's appearances are properly. The latches of the ODU and hybrid coupler should tightly engage on the antenna. The screws should be fastened tight. The IF connector of ODU should be waterproofed and face downward.

2 IF redundant: Leave enough slack when connecting cables to the ODU to facilitate future maintenance.

3 ODU grounding: The ODU grounding cable should be shortest length as possible and attached to the tower body by the cable clamp. Before attached grounding cable, must scrape-off the paint.





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Check ODU Installation

The latches of the ODU and hybrid coupler should tightly engage on the antenna. The screws should be fastened tight. The IF connector of ODU should be waterproofed and face downward.

4 screws should be fastened.





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IF connector can’t be up-toward.

IF connector must be down-toward.

For 1+1, main and standby ODU’s IF connectors must be down-toward.

Whether ODU is assembled with Antenna directly or with Hybrid Coupler, the IF connector of ODU must be down-toward.





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For 1+1 HSB/FD application, hybrid coupler top side which is attached label, must be up-toward.

The hybrid coupler top side which is attached label, must be up-toward.





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Check IF Cable Installation

The ODU grounding cable should be shortest length as possible and attached to the tower body by the cable clamp. Before attached grounding cable, must scrape-off the paint.

The grounding cable of outdoor unit should be soundly fastened to grounding bar nearby.

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CONTENT









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IF Cable Installation Check List

Check Item Result

1 In general, the IF cable should be grounded to a minimum of three points. When the IF cable is longer than 60 meters, add a grounding point for every extra 50 meters. The place about 1 m away from the ODU and 1 m away from the cable entry are propositional grounding point. All of outdoor connector should be waterproofed.

2 Porthole: IF cable must be up-tilted or have Waterproof curve in the entrance of porthole.

3 The IF cable route and position for the cabling should be designed beforehand and arranged neatly. IF cable turns should be smooth, and the bending radius should be larger than 30 cm.

4 The connection between the jumper and the IF cable should be connected in a correct and reliable way. If the connection is at outdoor, waterproof the connection.





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In general, the IF cable should be grounded to a minimum of three points. When the IF cable is longer than 60 meters, add a grounding point for every extra 50 meters. The place about 1 m away from the ODU and 1 m away from the cable entry are propositional grounding point. All of outdoor connector should be waterproofed.

1,2,3,4:IF Cable Grounding Point.

The 3 grounding kits must be mounted.





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The angle between IF cable and grounding cable is the smaller the better.

The angle should <15°.





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You should scrape the paint on the iron before mounting the grounding kits.





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The grounding kit screw must be fastened tightly.





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Porthole: IF cable must be up-tilted or have Waterproof curve in the entrance of porthole.The IF cable route and position for the cabling should be designed beforehand and arranged neatly. IF cable turns should be smooth, and the bending radius should be larger than 30 cm.





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All of outdoor connector should be waterproofed.

The ODU IF interface should be waterproofed.

The area for grounding kit should be waterproof.





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The operation of waterproof must be regular.

Wrapping a layer of PVC tape.

Wrapping three layers of waterproof insulation tape.

Wrapping three layers of PVC tape over the waterproof insulation tape.

Using the outdoor bundling strap to bind the PVC tape tight at both ends.





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The 2 ends of waterproof area should be tied with cable tire.

The 2 ends are tired with cable tire.

The 2 ends aren’t tired with cable tire.

The 2 ends aren’t tired with cable tire.





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The cable tire should keep a spare length after cutting.

No spare long.

Reserve spare long.





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The IF cable and GND cable should be tired with iron tower by cable tire.





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The reserved IF cable’s length outside or indoor should be appropriate (5m), otherwise, it will affect signal quality and grounding. The reserved IF cable should be arranged tidily.

The IF cables should be lined up tidily and neatly, and should be no obvious breakage or distortion, and any exposed copper is not allowed. The bending radius of the IF cable should be equal to or greater than 55mm.





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The IF cable/Feeder should be tied/clamped on the vertical cable ladder rung with 1m to 1.5m interval

<1.5m.

After the IF cable are installed, the fixing ties with proper tightness and be directed in the same way. All the root of the ties should be totally cut off without leaving any sharp ends.





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The holes for IF cable should be sealed.





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Standby 1 Main 1

Standby 1 Main 1

IF cable temporal Label

For the assembled

Antenna:

Right ODU: main;

Left ODU: Standby.

The main ODU of hybrid coupler must connect with the main IF board.

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IDU Installation Check List

Check Item Result

1 The installation position of IDU accords to the engineering design document. The matter that is paint break off and scratch and smear can not appear on IDU. Otherwise the equipment must be repaint and cleaned.

2 There must be a space of 1 unit at the top and bottom of the IDU chassis for heat dissipation. If there are multiple IDU, label opposite site name or ID for each one.

3 Check Power Supply protection circuit breakers values accords to the engineering design chart.





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Check IDU Installation

The installation position of IDU accords to the engineering design document. The matter that is paint break off and scratch and smear can not appear on IDU. Otherwise the equipment must be repaint and cleaned.





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There must be a space of 1 unit at the top and bottom of the IDU chassis for heat dissipation.

Height > 1U





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The matter that is paint break off and scratch and smear can not appear on Rack. Otherwise the equipment must be repaint and cleaned.





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The cable running should clean and tidily.





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The GND cable is the shorter the better.





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The cable running should clean and tidily.





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The equipment room should be cleaned every day.

1.The packages and boards of equipment should not be left disorderly in the equipment room.2.No residue of the cut-off cable ties or any other unnecessary articles should be left on the floor.3.Nothing unnecessary such as the residue of the cutoff cable ties or bolts should not be left in the cabinet.





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IDU Label

Trunk Cable Label

IF Jumper LabelThe screws of board should be fastened well.Label for each cable should be clear and tidily.





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DDF Label

Power Cable Label

DCDB Label

Label for each cable should be clear and tidily.





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E1 cable color code identification.

Transmit Pair

No Color code E1 #

Major Minor

1 White Blue 1

2 White Orange 2

3 White Green 3

4 White Brown 4

5 White Grey 5

6 Red Blue 6

7 Red Orange 7

8 Red Green 8

Receive Pair

No Color code E1 #

Major Minor

1 White Blue 1

2 White Orange 2

3 White Green 3

4 White Brown 4

5 White Grey 5

6 Red Blue 6

7 Red Orange 7

8 Red Green 8





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DDF Krone block layout.Front view (anticlockwise) Side view

(Clockwise)

a b s a b s a b s a b s







a b s a B a a a s a b s

3 2 1 0

3 2 1 0

3 2 1 0

3 2 1 0

3 2 1 0

3 2 1 0

3 2 1 0

3 2 1 0





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DDF labeling example





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An example of terminated DDF

An IDC(punch down) tool is used to properly secure the cable in place.

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Check Hardware Installation Quality

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