Transmission Shifting

Procedure and PrecautionsPresented by : Sharafat Hussaind Precautionswww.huawei.comCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-0Preface This course is developed based on Swap Procedure and Precautions required on sites These Contests make installations according to standards and keep KPI Issues Minor.

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-1ContentsReadiness of transmission shiftingComplete all spare materials before start ShiftingShifting from Indoor to Outdoor Equipment (RFC , TMC, Mini shelter)Power Connections and Powering of SystemFollowing Standard and Precautions

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-2Readiness of transmission shiftingLabel all operational MW linksMW IDU, IF cable, DDF , Power cablesComplete E1 Labeling as New Tagging of IDUs Trace all E1 cable on operation MW IDUs and note down.Confirm Flash Card availabilityAt Alcatal link confirm Flash card availabilityMeasure IF cable length enough till New equipment.Installation of New equipmentGrounding , Powering up. (RFC, TMC , Minishelter)Completion of spare material before starting swap. Gauge nuts, Screws, Cable lugs, Power molix.If New media available for site confirm media Status before swap. In case of Issue concern with your BSS engineer.

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3Shifting from Indoor to Outdoor Equipment (RFC , TMC, Mini shelter)First of All power off all MW links. Power off Main rectifier breakers or disconnect LVD.Remove all IF cables one by one from all IDUsRemove all E1 Cables with extra cure from MW IDUsDisconnect Grounding cables with IDUsDisconnect DDF Patch Panel from MW IDU.Shift One by one MW IDU,s to outdoor equipment as installed indoor. Connect IF cables, Grounds all MW IDUs, complete power connections. Confirm the Power connection polarity before terminating at DCDUThrough all E1 tributaries cables one by one as traces before Dismantling of equipment

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3

IDU Labeling and E1 TracingIDU AIDU BIDU CA1B3B1A3C1A2A2C1B2C3C2A4A3B1B3A1A4C2B4freeA5BTS GSMA6 BTS DCSCopyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3Power Connections and Powering of SystemConnect two or more then Two IDUs DCDU with LVD by pass Bus bar.Be careful about connection polarity at Bus bar and DCDU alsoUse proper cable thimbles and Heat shrink.Power cable connection at any point. IDU, Breaker or Bus bar must be tighten. In case of Loose Molix replace them with new one.Before powering up MW IDUs Make sure all equipments are properly grounded. IDUs separately also.Power up DCDU then power up IDUs one by one.Update to your concern engineer after completing MW shifting.

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3Power Connections at LVD at Hub Sites

Only for TXN systems : Always Connect DCDU with LVD Bypass bus bar opposite to Battery connections Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3Precautions Required during InstallationLabel every part of MW system with extra cure. In case of wrong labeling outage can be prolongedE1tracing done after tagging of IDUsDuring labeling and tracing with care , to avoid system outages. These work done before outage.Power cable connections must be tighten. Use proper size cable thimbles and heat shrink at power cables.Labels done at IDUs and at IF cables must proper. Didnt remove them during dismantling of EquipmentAlso label IF cables at Surge arrestors. Connect IF cable with IDU and at Surge arrestor according to labelIn case of Extra IF cable required , fabricate IF connector as per standards. In case of confusion concern with huawei engineer

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3Thank You !

Copyright 2006 Huawei Technologies Co., Ltd. All rights reserved. x-3