Nortel Networks 411-2021-111 manual Receive cabling, Component requirement, No, Frames TRUs ATCs

Page 33

Cell Site Layouts 3-7

Receive cabling

In the reverse path, the receive signal from the main antenna is connected to the A-input of the Receive Multicoupler (RMC) through the receive port of the duplexer. The diversity antenna connects directly to the B-input of the RMC. Distribution of the reverse path frequencies is accomplished by RF splitters within each RF frame.

Table 3-3 shows the connection between the RMC and the splitters.

Table 3-3

RMC to splitter connections for an Omni Metrocell

From

Through

 

To

 

 

 

 

 

Main antenna

RMC 1A - A1

TRU Shelf 1

 

Splitter 1

 

 

 

 

 

Diversity antenna

RMC 1B - B1

TRU Shelf 1

 

Splitter 4

 

 

 

 

 

Main antenna

RMC 1A - A2

TRU Shelf 2

 

Splitter 1

 

 

 

 

 

Diversity antenna

RMC 1B - B2

TRU Shelf 2

 

Splitter 4

 

 

 

 

 

Main antenna

RMC 1A - A3

TRU Shelf 3

 

Splitter 1

 

 

 

 

 

Diversity antenna

RMC 1B - B3

TRU Shelf 3

 

Splitter 4

 

 

 

 

 

Component requirement

Table 3-4 lists the components required for a Metrocell with one to five RF Frames. An omni cell site requires only one Receive Multicoupler (RMC).

Table 3-4

Component requirement for an omni Metrocell

 

No. of RF

No. of

No. of

Duplexer

ICRM TCM

 

No. of

 

Frames

TRUs

ATCs

per frame

Port cards

 

antennas

 

 

 

 

 

 

 

 

Configuration

1

3 to 20

1 to 3

1

2

1

TX/RX, 1 RX

with up to 20

 

 

 

 

 

 

 

2

21 to 40

4 to 6

1

4

2

TX/RX

channels per

 

 

 

 

 

 

 

3

41 to 60

7 to 9

1

6

2

TX/RX, 1 TX

RF Frame

 

 

 

 

 

 

 

 

4

61 to 80

10 to 12

1

6

2

TX/RX, 2 TX

 

 

 

 

 

 

 

 

 

5

81 to 100

13 to 15

1

8

2

TX/RX, 3 TX

 

 

 

 

 

 

 

 

Configuration

1

3 to 24

1 to 3

2

2

2

TX/RX

with up to 24

 

 

 

 

 

 

 

2

25 to 48

4 to 6

2

4

2

TX/RX, 2 TX

channels per

 

 

 

 

 

 

 

3

49 to 72

7 to 9

2

6

2

TX/RX, 4 TX

RF Frame

 

 

 

 

 

 

 

 

4

73 to 96

10 to 12

2

6

2

TX/RX, 6 TX

 

 

 

 

 

 

 

 

 

5

97 to 120

13 to 15

2

8

2

TX/RX, 8 TX

 

 

 

 

 

 

 

 

Note: An additional TCM port card is required for the DRUM, the ACU and the CSM2.

DMS-MTX DualMode Metrocell Cell Site Description

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Contents
DualMode Metrocell Page Page June Publication historyContents Cell Site Components Power and Grounding RequirementsDatafilling a Metro Cell Site AppendicesList of tables Block diagram of a 120 Stsr Metrocell using one RF FramePage Intended audience for this publication About this documentApplicability of this publication How this publication is organizedList of terms BandCarrier RF DBm CellDBW DuplexerForward path FilterIsolation LossOmni ModulationDqpsk Return lossSignal RF SectorSectorization Stsr Northern Telecoms DualMode Metrocell IntroductionDigital ready cellular product System architecture of a DualMode MetrocellMetro RF Frame Basic components of a DualMode Metrocell Universal CE Frame800 MHz cellular band Channel assignment for 800 MHz cellular systemsChannel assignment Band a 416 channels Band B 416 channels Introduction 6Introduction Standard 01.01 June Cell Site Configurations Omni configurationOverview Omni N=7 frequency reuse plan Sectorized configuration120 N=7 sectorized frequency reuse plan 60 N=4 sectorized frequency reuse plan Cell Site Layouts Omni cell site configurationRF Frame Control Channel redundancy Cell Site Layouts 4Cell Site Layouts TRU/DPA Transmit cabling6Cell Site Layouts Component requirement Receive cablingNo. Frames TRUs ATCsStsr cell site configuration CE Frame RF Frame Block diagram of a 120 Stsr Metrocell using one RF FrameBlock diagram of a 120 Stsr Metrocell using three RF Frames 12Cell Site Layouts DPA 9 Port1 CCH ATC3 Port DPA 10 Port1 14Cell Site Layouts TRU/DPA ATC 16Cell Site Layouts Sector Sector Z Sector YSector Y TX/RX, 3 RX Control Channel Locate Channel Receiver Sector Stsr cell site connectionSector U Sector W22Cell Site Layouts Block diagram of a 60 Stsr Metrocell with two RF Frames 24Cell Site Layouts Block diagram of a 60 Stsr Metrocell with four RF Frames 26Cell Site Layouts Transmit cabling 28Cell Site Layouts TRU/DPA 30Cell Site Layouts Port2 ATC3 Port DPA Port1 RF Frame 32Cell Site Layouts Receive cabling 34Cell Site Layouts Sector Y 36Cell Site Layouts Component requirement 38Cell Site Layouts Standard 01.01 June Major components of a DualMode Metrocell Description Cell Site ComponentsNTAX98AA FRU Customer Service Operations 4Cell Site Components Standard 01.01 June Safety requirements Power and Grounding RequirementsPower and grounding requirements Power and Grounding Requirements 4Power and Grounding Requirements Power distribution for the CE and RF Frames in a Metrocell Frame power distributionGrounding UL/CSA approval System power protectionCEC par DC coupled signals Cable Identification 10Power and Grounding Requirements Standard 01.01 June Datafill Overview Datafilling a Metro Cell SiteTable Acualm Table ClliAlarm Points Metro RF Frame ATCCavities Fan Pwr Hsmo +27V a Rip Connector J206 Table VCHINV, CCHINV, LcrinvPort # Example of Metro TRU datafill Frequency Assignment ExampleIcrm Example of Metro ICRM/TRU hardwire configuration8Datafilling a Metro Cell Site Standard 01.01 June Appendix a DualMode Metrocell Cell Site Specifications System ConfigurationRadio Frequency Audio Interface AlarmsDC Power Requirements Power Distribution RequirementsMechanical Environmental PackagingRegulatory Electromagnetic Emissions Radiated EmissionsTelecom Compliance Product Safety =7 Frequency plan Band a Appendix B Frequency Plans=7 Frequency plan Band B =4 Frequency plan Band B =4 Frequency plan Band a10Frequency Plans Standard 01.01 June Page Cell Site Description
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