Siemens SRA 4 User Manual Download

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I-7

SRA 4 - 6/7/8/10/11/13 GHz (WB ODU) - UMN
911-381/02C0000 - Issue 3, July 2004

LIST OF ILLUSTRATIONS

Fig. 1.1

SDH multiplex structure (ETSI). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13

Fig. 1.2

STM-1 frame structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13

Fig. 1.3

Details of section bytes inside the OH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.14

Fig. 1.4

Composition of the AU-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.15

Fig. 1.5

Composition of the AU-4 and C-4 structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.16

Fig. 1.6

Fluctuations of the VC-4 inside the payload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.17

Fig. 1.7

STM-RR frame structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.18

Fig. 1.8

Composition of the TU structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.19

Fig. 1.9

Composition of the structures C-3, VC-3 e TU-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.20

Fig. 1.10

Loading a 140 Mbit/s signal into a VC-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.22

Fig. 1.11

Loading of a 34 Mbit/s signal into a VC-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.24

Fig. 1.12

Example of an SDH network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.26

Fig. 1.13

Examples for the multiplex and regenerator section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.27

Fig. 2.1

SRA 4 Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6

Fig. 2.2

IDU in 1+0 and 1+1/2+0 configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7

Fig. 2.3

IDU in N+1 configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8

Fig. 2.4

Indoor Section Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.9

Fig. 2.5

Outdoor Section Block diagram (ODU for AP channelling) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.10

Fig. 2.6

Outdoor Section Block diagram (ODU for AP/CC channelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.12

Fig. 2.7

1+1 configuration system block diagram without tributary protection . . . . . . . . . . . . . . . . . . . . . . . 2.16

Fig. 2.8

1+1 configuration system block diagram with tributary protection . . . . . . . . . . . . . . . . . . . . . . . . . 2.17

Fig. 2.9

Physical channels used to manage switching functionality in 3+1 system type . . . . . . . . . . . . . . . 2.19

Fig. 2.10

N+1 (3+1) configuration system block diagram:

Tx section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25

Fig. 2.11

N+1 (3+1) configuration system block diagram:

Rx section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.26

Fig. 2.12

Battery protection block diagram (in IDU assembly). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.28

Fig. 2.13

SOH Bytes Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.29

Fig. 2.14

Equipment Management Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.31

Fig. 2.15

Loop-back 1 (Trib.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40

Fig. 2.16

Loop-back 2 (Trib. side int.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40

Fig. 2.17

Loop-back 3 (Radio ext.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40

Fig. 2.18

1+0 system with independent antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.55

Fig. 2.19

1+1 system with Hot Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.56

Fig. 2.20

2+0 system with dual polarization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.57

Fig. 2.21

1+1 system copolar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.58

Fig. 2.22

2+0 system with dual polarization co-channel configurationl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.59

Fig. 2.23

N+1 (2+1) system with Alternate Pattern (AP) configurationl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.60

Fig. 2.24

N+1 (3+1) system with Alternate Pattern (AP) configurationl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.61

Fig. 2.25

1+0/1+1/2+0 Indoor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.63

Fig. 2.26

N+1 Indoor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.64

Fig. 2.27

1+0/1+1/2+0 systems Indoor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.68

Fig. 2.28

N+1 (2+1/3+1) systems Indoor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.70

Fig. 2.29

Outdoor assembly ( AP ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.77

Fig. 2.30

Outdoor assembly (AP/CC ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.83

Fig. 2.31

3/10” or 1/4” coaxial cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.86

Fig. 2.32

Connection diagram between the AP/CC ODU’s for CC configuration . . . . . . . . . . . . . . . . . . . . . 2.87

Fig. 2.33

Connection diagram between the ODUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.88

Fig. 2.34

1+0 Supporting frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.89

Fig. 2.35

1+0 Supporting frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.90

Fig. 2.36

1+1 Supporting balanced frame for Hot Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.91

Fig. 2.37

1+1 Supporting unbalanced frame for Hot Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.92

Summary of Contents for SRA 4

Page 1: ...User Manual SRA 4 6 7 8 10 11 13GHz W B ODU SDH Spli tRadi o UMN 911 381 02C0000 I ssue 3 July2004 ...

Page 2: ...ntation Department S S 11Padana Superiore k m 158 I 20060 Cassina de Pecchi MI Technical modif ications are possible Technical specif ications andf eatures are binding only insof ar as they are specif ically andex pressly agreedupon in a written contract SRA 4 6 7 8 10 11 13GHz W B ODU UMN 911 381 02C0000 I ssue 3 J uly 2004 ...

Page 3: ...espect to Issue 1 includes the information regarding the 13 GHz AP ODU In Issue 3 July 2004 the 10 GHz AP ODU the 6 7 8 11 13 GHz AP CC ODU the co channel and the N 1 configurations and the licence fees STATUS OF MANUAL Cur r ent Issue 3 July 2004 Pr evi ous Issue 2 March 2004 Issue 1 September 2003 ...

Page 4: ...STATUS OF MANUAL R 2 SRA 4 6 7 8 10 11 13 GHz WB ODU UMN 911 381 02C0000 Issue 3 July 2004 B L A N K P A G E ...

Page 5: ...ture 1 10 1 4 1 1 Introduction 1 10 1 4 1 2 Obj ectiv es of the synchronous digital hierarchy 1 11 1 4 1 3 Digital structure of SDH signals 1 12 1 4 1 4 STM 1 frame structure 1 12 1 4 1 5 AU 4 Administrativ e unit 1 15 1 4 1 6 STM RR frame structure Sub STM 1 1 18 1 4 1 7 AU 3 Administrativ e unit 1 18 1 4 1 8 Tributary units and their structure 1 18 1 4 1 9 TU 3 Tributary unit 1 20 1 4 1 10 Mappi...

Page 6: ...10 1 Equipment management 2 30 2 1 10 1 1F interface 2 31 2 1 10 1 2Q interface 2 31 2 1 11 Mechanical structure 2 32 2 1 12 Configurations 2 32 2 2 TECHNICAL CHARACTERISTICS 2 33 2 2 1 Electrical Characteristics 2 33 2 2 1 1 General Electrical Characteristics 2 33 2 2 1 2 IDU ODU Connection Characteristics 2 35 2 2 1 3 Transmitter Characteristics 2 36 2 2 1 4 Characteristics of the Transmitter Ho...

Page 7: ... 1 Supporting frames for Hot stand by 2 91 2 3 7 2 1 Balanced frame 2 91 2 3 7 2 2 Unbalanced frame 2 92 2 3 7 3 1 1 Supporting frame for frequency diversity 2 94 3 INSTALLATION 3 1 3 1 INSTALLATION OF THE N3 RACK ETSI 3 1 3 1 1 View of the N3 rack ETSI 3 1 3 1 2 Drilling planes 3 3 3 1 2 1 In line installation of the N3 Rack ETSI without combining frame 3 3 3 1 2 2 Back to back installation of th...

Page 8: ...ctor functions 3 47 3 4 3 IF connections 3 53 3 4 4 Base connection elements 3 54 3 4 4 1 Connection elements for 1 0 system P N 597 525 21 3 54 3 4 4 2 Connection elements for 1 1 2 0 system P N 597 525 22 3 55 3 4 4 3 Connection elements for upgrading from 1 0 to 1 1 2 0 P N 597 525 33 3 55 3 4 5 ODU connections for received field measurement 3 59 4 ACTIVATION 4 1 4 1 PRESETTINGS 4 1 4 1 1 Hardw...

Page 9: ...DURE FOR SPARE PARTS USE 5 8 5 3 1 Procedure for the IDU unit replacement 5 8 5 3 2 Procedure for the ODU replacement 5 8 6 FUNCTIONAL DESCRIPTION 6 1 6 1 ODU FUNCTIONAL DESCRIPTION 6 1 6 1 1 General description 6 1 6 1 2 Main characteristics 6 3 6 1 3 Unit description 6 3 6 1 3 1 Power supply 6 3 6 1 3 2 IF unit 6 3 6 1 3 2 1 FSK sub unit 6 4 6 1 3 3 Microwave Transceiver Front end subunit 6 4 6 ...

Page 10: ...INDEX I 6 SRA 4 6 7 8 10 11 13 GHz WB ODU UMN 911 381 02C0000 Issue 3 July 2004 B L A N K P A G E ...

Page 11: ...manage switching functionality in 3 1 system type 2 19 Fig 2 10 N 1 3 1 configuration system block diagram Tx section 2 25 Fig 2 11 N 1 3 1 configuration system block diagram Rx section 2 26 Fig 2 12 Battery protection block diagram in IDU assembly 2 28 Fig 2 13 SOH Bytes Management 2 29 Fig 2 14 Equipment Management Architecture 2 31 Fig 2 15 Loop back 1 Trib 2 40 Fig 2 16 Loop back 2 Trib side i...

Page 12: ... 3 22 1 1 frame installed ODUs 3 28 Fig 3 23 Solar shield installation 3 29 Fig 3 24 Connections 1 0 System 3 30 Fig 3 25 Connections 1 1 Hot Standby system 3 31 Fig 3 26 Connections 2 0 system 3 32 Fig 3 27 Connections 1 0 system 3 33 Fig 3 28 Connections 1 1 Hot Standby system 3 34 Fig 3 29 Connections 2 0 system 3 35 Fig 3 30 Static desiccator for small system 3 36 Fig 3 31 Pressurization with ...

Page 13: ...Block diagram of the BB MODEM unit BB Section 6 10 Fig 6 5 Block diagram of the BB MODEM unit MODEM Section 6 10 Fig 6 6 Front panel of the IDU with electrically interfaced BB MODEM unit 6 11 Fig 6 7 Front panel of the IDU with optically interfaced BB MODEM unit 6 12 Fig 6 8 LED CH A ON block diagram without tributary protection 6 14 Fig 6 9 LED CH A ON block diagram with tributary protection 6 15...

Page 14: ...I 10 SRA 4 6 7 8 10 11 13 GHz WB ODU UMN 911 381 02C0000 Issue 3 July 2004 LIST OF ILLUSTRATIONS B L A N K P A G E ...

Page 15: ...channelling according to ITU R F 385 6 Annex 3 1st digit ext P N 1 2 45 Tab 2 25 7 GHz channelling according to ITU R F 385 6 Annex 1 1st digit ext P N 2 2 46 Tab 2 26 7 GHz channelling according to ITU R F 385 6 1st digit ext P N 3 2 46 Tab 2 27 7 GHz channelling according to ITU R F 385 6 1st digit ext P N 3 2 47 Tab 2 28 7 GHz channelling according to ITU R F 385 6 Annex 4 1st digit ext P N 4 2...

Page 16: ...requency diversity Co polar 2 94 Tab 2 71 1 1 Supporting frame for frequency diversity Cross polar 2 95 Tab 3 1 N3 rack ETSI list 3 3 Tab 3 2 Fixing kit for N3 racks ETSI 333 043 81 3 14 Tab 3 3 Fixing kit for N3 racks ETSI for floating floors Optional 332 309 36 3 14 Tab 3 4 ODU Flanges 3 16 Tab 3 5 1 0 frame P N and flanges 3 19 Tab 3 6 1 1 frame Attenuation type of flange and P N 3 24 Tab 3 7 E...

Page 17: ...7 525 33 3 55 Tab 4 1 KEY alarms 4 3 Tab 4 2 Station accessories 4 7 Tab 5 1 List of spare parts IDU 5 6 Tab 5 2 7 GHz 5 6 Tab 5 3 8 GHz 5 6 Tab 5 4 10 GHz 5 6 Tab 5 5 11 GHz 5 7 Tab 5 6 13 GHz 5 7 Tab 5 7 6 GHz 6L 5 7 Tab 5 8 6 GHz 6U 5 7 Tab 5 9 7 GHz 5 7 Tab 5 10 8 GHz 5 7 Tab 5 11 11 GHz 5 7 Tab 5 12 13 GHz 5 7 Tab 6 1 Summary of the front panel LEDs 6 13 ...

Page 18: ...LIST OF TABLES I 14 SRA 4 6 7 8 10 11 13 GHz WB ODU UMN 911 381 02C0000 Issue 3 July 2004 B L A N K P A G E ...

Page 19: ...evant to the synchronous hierarchy Section 2 PLANNING MANUAL It contains general information about the equipment its electrical characteristics and its use with a telecommunication network Section 3 INSTALLATION MANUAL All the instructions are set down for the equipment mechanical installation complete of the constituting parts and of the electrical connections to the outside Section 4 ACTIVATION ...

Page 20: ...fety rules and the use precautions to be followed during operations on the equipment to avoid injuries to personnel and or damages to the equipment components 1 2 1 Safety rules The equipment complies with the 1999 5 EC European specification The equipment is prearranged for supplying from station batteries 48 to 60 VDC 20 then follow the on force specifications for low voltage supplied equipment ...

Page 21: ... or at an optical connector not covered Handle carefully the optical fiber A broken optical fiber can cause damages to eyes and skin Check that the optical source is switched off before execute or interrupt an optical connection Do not connect a fiber to an optical output without checking that the fiber terminal is ended Do not supply the optical tributary out of the sub rack and do not change the...

Page 22: ...stallation and starting up phase During the execution of such operations it is necessary to follow strictly the safety rules listed here below During installation while the antenna and or the external supporting frame for rod are lifted it is strictly forbidden to stay or to pass in the underlying area Such an area must be properly restricted or signalled according to the on force rules For the ex...

Page 23: ... components in MOS technology SAW Surface Acoustic Wave components Operational amplifiers with MOS FET inputs MOS FET components and arrays Microwave semiconductors and microcircuits at frequencies 1 GHz Modules containing ESDS devices are identified by following adhesive labels In order avoid any damage while handling the modules the user should wear an antistatic elastic bracelet grounded by mea...

Page 24: ...lock Coded Modulation BER Bit Error Ratio BIP Bit Interleaved Parity B ISDN Broadband Integrated Services Digital Network CC Co Channel CCIR ComitèConsultatif International des Radiocomunications CCITT ComitèConsultatif International Telègraphique et Tèlèphonique CTR Complesso Trasmettitore Ricevitore Transceiver equipment DAC Digital to Analog Converter DCC Data Communications Channel DCCR Data C...

Page 25: ...ection HPT Higher order Path Termination HUG Higher order Unit Group IEEE Institute of Electrical and Electronic Engineers ISC International Switching Center ISDN Integrated Services Digital Network ISO International Organization for Standardization ITU R International Telecom Union Radio ITU T International Telecom Union Transmission LAN Local Area Network LCN Local Communication Network LO Local...

Page 26: ...ate Automatic Branch Exchange PCM Pulse Code Modulation PDH Plesiochronous Digital Hierarchy PI Phisical Interface PIOP Parallel Input Output Port PLL Phase Locked Loop POH Path Overhead QAM Quadrature Amplitude Modulation RF Radio Frequency RPI Radio Phisical Interface RPS Radio Protection Switching RS Regenerator Section RSOH Regenerator Section Overhead RST Regenerator Section Termination RT Ri...

Page 27: ...tching SSPA Solid State Power Amplifier STI Single Tributary Interface STM Synchronous Transport Module STM N Synchronous Transport Module level N SW Switching TCM Trellis Code Modulation TMN Telecommunications Management Network TU Tributary Unit TUG Tributary Unit Group VC Virtual Container VCO Voltage Control Oscillator WB Wide Band WES Weighted Evaluation Strategy WST West Side Traffic ...

Page 28: ...en developed because of the need to overcome the limitations of plesiochronous multiplexing PDH The SDH hierarchy standardized through ITU T recommendations G 707 G 708 and G 709 answers the need of telecommunications administrations for a network that associates a high performance level with those characteristics of flexibility and manageability which are required to cope with growing user demand...

Page 29: ...t origins obtained through standardization of line interfaces both at the electro optical and the frame format level use of auxiliary channels and standardized control bits inserted into the same multiplex frame of the main signal easy access to tributary signals and simplified multiplex demultiplex operations simplification of insertion extraction functions for tributaries into from an aggregate ...

Page 30: ...the containers C with the useful signal Fig 1 1 shows schematically the multiplex structure foreseen by the ETSI standard European telecomunications standard institute Fig 1 1 shows also the transport capacity values of the single digital structures obtained by summing the transport capacity of the inferior structure with the POH bytes the bytes required for allocation of pointers and possible stu...

Page 31: ...ministrative unit AU 4 The administrative units AU are digital structures of higher order contained in the STM 1 frame and are particularly suitable for the operational of the SDH network such as for example the rerouting of digital streams for protection of the network ALL VALUES IN MBIT S CHANGE LEVEL 149 760 48 384 6 784 1 600 2 176 1 664 2304 2 240 48 960 6 848 6 912 6 912 49 152 49 536 150 33...

Page 32: ...es used for the switching procedure in a multiplex section Z1 Z2 For future use S1 Byte for the management of the synchronism quality M1 Byte FEBE Far End Block Error X 6 bytes reserved for national usage M 6 bytes available only in RSOH for applications that depend on the physical means media specific bytes The remaining 26 bytes are available for future standardization A1 A1 A1 A2 A2 A2 J0 X X B...

Page 33: ...t 9 bytes of the fourth line in the frame the so called payload which occupies the remaining 261x 9 bytes divided into time cells with a given address Fig 1 4 Composition of the AU 4 Its overall transport capacity is CAU 4 8 x 9 261 x 9 x 8 x 103 150 912 Mbit sec a b c d a bits composing each single byte b bytes occupied by AUOH c bytes available for the payload d frequency of the STM 1 frame TIME...

Page 34: ...4 less the AUOH and is equal to 150 336 Mbit s the transport capacity of the container C 4 however is 149 760 Mbit s that is equal to that of the VC 4 without POH Fig 1 5 Composition of the AU 4 and C 4 structures VC 4 STM 1 MSOH RSOH POH C 4 N1 K3 F3 H4 F2 G1 C2 B3 J1 261 5 1 3 261 9 AU 4 AUOH J1 Channel identification path identifier B3 Parity byte for BER detection in the channel C2 Indication ...

Page 35: ...reseen by the SDG standard allows the network to operate correctly even in the presence of digital streams to be transported and or network elements with clocks that are not locked to the synchronization clock of the network This occurs essentially for two reasons to allow the SDH network to transport streams of the present plesiochronous hierarchy to face possible faults and or malfunctions and i...

Page 36: ...pping in 3xAU 3 and only one out of the three AU 3 is transmitted to the modulator The output section receives from demodulator the STM RR frame AU 3 mapped convert if in AU 4 by inserting all 1 in the two missing TUG 3 Then it returns an STM 1 frame with an useful payload of 1 3 of the capacity 1 4 1 8 Tributary units and their structure The container of the VC 4 can be loaded either with a singl...

Page 37: ...omposition of the TU is shown schematically in Fig 1 8 Fig 1 8 Composition of the TU structure The virtual containers VC can be divided into two groups depending on their capacity and structure VC of a higher order VC 3 and VC 4 and VC of a lower order VC 2 VC 11 and VC 12 Containers of a higher order have in fact a field defined in one single STM 1 frame 125 µs those of a lower order have a field...

Page 38: ...t s a c b container VC 3 CVC 3 8 x 9 84x 9 x 8 x 103 48 960 Mbit s a d c b container TU 3 CTU 3 8 x 3 6 85x 9 x 8 x 103 49 536 Mbit s a e f g b where a bit of which all bytes are composed b STM 1 frame frequency c byte composing C 3 d byte composing POH of VC 3 e byte for pointer allocation f fixed stuffing byte g byte composing VC 3 Fig 1 9 Composition of the structures C 3 VC 3 e TU 3 Fixed stuf...

Page 39: ...overhead bits and fixed stuffing bits 1 4 1 11 Loading a 140 Mbit s plesiochronous signal in the VC 4 From the mapping function recommended by ITU T for loading of a 140 Mbit s plesiochronous signal into the VC 4 shown in Fig 1 10 we can deduct that the VC 4 with reference to its own clock is capable of an information bit load which is variable between a minimum of 9 x 20 x 12 1 x 8 54 x 8 x 103 1...

Page 40: ...ING OPPORTUNITY 1 12 CRRRRROO BLOCK 1 96 I 8 R BLOCK 2 BLOCK 3 8 R BLOCK 4 BLOCK 5 8 R 8 R BLOCK 9 BLOCK 8 8 R BLOCK 7 BLOCK 6 8 R CRRRRROO CRRRRROO BLOCK 10 BLOCK 11 1 C STUFFING MESSAGE O OVERHEAD BIT R R FIXED STUFFING I INFORMATION BIT C 4 260 9 P O H RRRRRR C1 C2 1 1 1 1 1 1 1 1 1 12 12 12 12 12 12 12 12 12 1 1 1 1 1 1 1 1 1 1 12 12 12 12 12 12 12 12 12 12 Y Y Y Y Y Y X X X Y Y Y X Y Y Y X 9 ...

Page 41: ...me a fixed stuffing S R for the S bits in Fig 1 11 and a maximum of 9 x 3 x 19 x 8 189 6 x 8 x 103 34 392 Mbit s a b c d f e obtained by forcing in each frame the loading of information bits S I for the S bits in Fig 1 11 a byte per column b columns containing only information bits c bits of each byte d information bits contained in the last columns of Fig 1 11 e frame frequency STM 1 f total numb...

Page 42: ... s C 3 VC 3 84 9 P O H 1 3 RRRRRRR S1 S2 IIIIIII RRRRRRRR RRRRRR C1 C2 B A 1 3 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8 I 3x8...

Page 43: ...onnections and a very limited number of cases in urban and connection networks Terminal knots which change and elaborate the incoming information stream They often also include the multiplex function of digital structures in the STM N frame evidencing typical characteristics of SDH network elements such as the fact that there is no distinction between multiplex frames and line signal this way allo...

Page 44: ... 140 Radio Microwave STM 1 STM 1 DXC TU 140 34 Optical fiber STM 1 STM 1 AD AU STM 4 STM 1 140 STM 1 2 34 140 TMN MANAGEMENT NEWORK STM 1 STM 1 STM 1 STM 1 34 140 140 34 2 2 34 140 2 34 140 R Repeater T Terminal AD Add Drop DXC Cross Connect AU Level of administrative unit TU Level of trib unit TMN Telecommunication Management Network DCC Data Communication Channel Radio Microwave Optical fiber Ra...

Page 45: ...ces of equipment they link up with Some examples in Fig 1 13 are taken from Fig 1 12 Fig 1 13 Examples for the multiplex and regenerator section Each multiplex section is assigned a part of the SOH in the STM 1 frame or more generally in the STM N frame called MSOH to fulfill the following functions Pointers Automatic switching Parity check Transmission alarm Data channels DCC data communication c...

Page 46: ...1 PRELIMINARY INFORMATION 1 28 SRA 4 6 7 8 10 11 13 GHz WB ODU UMN 911 381 02C0000 Issue 3 July 2004 B L A N K P A G E ...

Page 47: ...transport networks LMDS BWA networks UMTS GSM cellular infrastructure networks The radio system SRA 4 has been designed to transmit the following signals SDH STM 1 SONET OC 3 ATM over SDH ATM over SONET The frame structure of the transmitted signal has the 155 520 Mbit s bit rate with 128 TCM 4D modulation The WB ODU s are described in this manual The NB ODU s are described in the SRA 4 manual P N...

Page 48: ... 6L ITU R F 383 7 29 65 44 49 252 04 6430 7110 6U ITU R F 384 7 40 60 340 Tab 2 2 RF 7 GHz channelling Frequency bands MHz Recommendation Co cross polar adjacent channel spacing MHz Centre gap MHz Shifter Freq MHz 7110 7750 lower ITU R F 385 6 Annex 3 28 84 copolar 196 7110 7750 upper ITU R F 385 6 Annex 3 28 56 copolar 168 7125 7425 ITU R F 385 6 F0 7275 28 depending on channels used 161 7425 790...

Page 49: ...Canalizzazioni RF 10 GHz Frequency bands MHz Recommendation Co cross polar adjacent channel spacing MHz Centre gap MHz Shifter Freq MHz 10000 10680 CEPT Rec 12 05 28 98 350 Tab 2 5 RF 11 GHz channelling Frequency bands MHz Recommendation Co cross polar adjacentchannel spacing MHz Centre gap MHz Shifter Freq MHz 10700 11700 ITU R F 387 Recommends 1 40 90 crosspolar 530 10700 11700 ITU R F 387 Annex...

Page 50: ...o digital hardware to take advantage of customised integration ASlCs and to improve system reliability The biggest and most sophisticated ASIC designed for communication systems is the heart of SRA 4 modem System design is based on a full digital concept This approach takes extensive advantage of the most recent technological achievements leading to VLSI circuit solutions the most suitable for man...

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