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Microwave QAQC Check

Nec Pakistan office 2007.01

Microwave QAQC check

Hardware checkSoftware check Software check

January 13, 2007 NEC Corporation 2007 2

First check the hardwave

Hardware checkIndoor Equipment Installation Indoor Equipment Installation Microwave Antenna & IF Cable/FeederPower and Grounding CablesClearning of the Equipment RoomClearning of the Equipment Room


Indoor Equipment Installation -11The rack should be placed according to the project design drawings, and should be soundly and firmly be soundly and firmly connected to ground.2The horizontal error of the rack should be less than 5 mmrack should be less than 5 mm.3For the integrated equipment, when the rack are lined up together their vertical together, their vertical deviation should be less than 3mm. And edge of front base of each rack should be in the of each rack should be in the same line or based upon customer requirement.


Indoor Equipment Installation -2

4The indoor unit should be soundly

d f land firmly connected to the rack.5The grounding 5The grounding cable of indoor unit should be soundly fastened to

di b grounding bar nearby.


Indoor Equipment Installation -26The I/O board of 120Ω to 75Ω should be soundly and firmly connected to the rack.(If required)7The connector of the trunk cable should be 7The connector of the trunk cable should be connected soundly and firmly, it should be ensured that the plug is reliably crimped and appears intact.



8The power cable, grounding cable, trunk cable and IF cable should be kept from any external damage No kept from any external damage. No connector is allowed in the mid of cables. 9The connector of the IF cable should be installed properly to avoid any false connection, which may lead to , ythe abnormal standing wave ratio and affect the normal running of the systemsystem.10The IF cable in the horizontal direction should be fixed to the

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cabling trough.

Indoor Equipment Installation -411Try not to cross the rigid cables and keep from straining them too much in the connection Make sure that connection. Make sure that enough length is reserved for rigid cables around the corner, and keep the consistent pbending12Proper length should be reserved for the cable

t t th ti connectors at the connecting positions.


Indoor Equipment Installation -513The cables should be bound tidily and neatly, and the cable ties should be evenly arranged es s ou d be e e y a a gedwith 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.14The cabling should facilitate gfuture maintenance and expansion.



15Clear labels should be attached on both sides of the cables sides of the cables. The labels should be filled in according to th l t the relevant specifications.16Any inspection items y prequired but not included above shall meet the relevant meet the relevant requirements of NEC.


MW Antenna & IF Cable/Feeder-11The antenna support should be placed as designed, p g ,and should be reliably and firmly connected to the connected to the iron tower.2The antenna should be placed should be placed as designed, and should be reliably and firmly and firmly connected to the antenna support.


MW Antenna & IF Cable/Feeder-2

3The outdoor unit should be reliably and fi l t d t th firmly connected to the antenna.4The antenna assembly 4The antenna assembly (Polarization) should be fit to the designed.fit to the designed.5The antenna should be located within the protection area of the lightning arrester.


MW Antenna & IF Cable/Feeder-36The grounding cable of outdoor unit should be soundly fastened to

di b bgrounding bar nearby.7The IF cables/Feeder should be lined up tidily and neatly and should be and neatly, and should be no obvious breakage or distortion, and any exposed copper is not p ppallowed.8The bending radius of the IF cable should be equal to or greater than equal to or greater than 55mm.


MW Antenna & IF Cable/Feeder-49The IF cable/Feeder should be tied/clamped on the vertical cable ladder e e ca cab e adderung with 1m to 1.5m interval10After the IF cable are 10After 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 g y pends.


MW Antenna & IF Cable/Feeder-511The water-proof sealing treatment should be conducted should be conducted for the connectors of all the outdoor unit. 12Wh th f d 12When the feeder window is mounted on the building top to g plead the feeder cables indoors, the air-tightness of the feeder tightness of the feeder window should be guaranteed.


MW Antenna & IF Cable/Feeder-6

13Cable connectors should be prepared according to relevant p p gspecifications without any loose connection.14Any inspection items required but not included above should meet the relevant requirements of NEC.


Power and Grounding Cables-1 1The PGND protection grounding cables should be yellow/green or black, the GND di bl h ld GND grounding cables should be red and the -24 /–48V power cables should be blue or black. (based upon or black. (based upon customer requirement)2The power cables and grounding cables should be g gmade from an intact section of copper core wires without any cut. They should be reliably connected as per reliably connected as per relevant standards


Power and Grounding Cables-2


Power and Grounding Cables-3 3The diameter of all the power cables and grounding cables should comply with the design should comply with the design requirements.4The power cables and

di bl t id th grounding cables outside the indoor unit should not be bound together with other cables, and g ,at least 5cm away from them.5The excessive part of the power and grounding cables power and grounding cables should be cut off. Coiling is not allowed.


Power and Grounding Cables-36The lugs on both sides of the power cable or grounding cable should be soundly welded or

i d k d hcrimped. No naked core or the end of the lug should be exposed.7Th iti l f th 7The positive pole of the primary power supply should be connected to the ground according to relevant according to relevant specifications.8For the power supply and grounding cables the grounding grounding cables, the grounding terminals should be mounted firmly and in good contact.


Power and Grounding Cables-49The labels should be attached to both sides of a power cable and a grounding cable.10The antistatic operation procedures should be followed in the board unpacking and p gplugging/unplugging. 11The installation tools should meet the antistatic eet t e a t stat crequirements.12Any inspection items required but not included required but not included above should meet relevant requirements of NEC.


Cleaning of the Equipment Room1The packages and boards of NEC equipment should not be left disorderly in the equipment left disorderly in the equipment room.2No residue of the cut-off cable ties or any other unnecessary articles should be left on the floorfloor.3Nothing unnecessary such as the residue of the cutoff cable ties or bolts should not be left in the cabinet.


Software checking

Parameter Setting

d

Setting BiAIS RCV rate By LCTAIS RCVD / AIS SEND By LCTand

Monitoring by LCT

y CTX / RX frequency Follow the link budget TX power attenuation Follow the link budgetE1 l I hibit CE1 alarm Inhibit Closed the no use E1 alarmBER alarm point Ber shreshold 1E-4Alarm table By LCT, No alarm

Monitoring Monitoring TX power Follow the link budgetMonitoring RX level Compliant design By LCT Alarm status B LCT N lAlarm status By LCT No alarmInventory By LCT

BER Test BER test 6-hours check by LCT or PNMT


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