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Access Termination Unit (ATU)

5.2.1

Functional Blocks

This section describes the functions of ATU based on the block diagram in
Figure 82 on page 95.

8468

Power

USB

External Power
Supply -48 V DC

O&M

Ethernet

Modulator

Demodulator

DCC

DCC

RCC

RAU

Traffic

Traffic

E1
E1
E1
E1
E1
E1
E1
E1

10/100BASE-T

Traffic

10BASE-T

Site LAN

nxE1

nxE1

HCC

HCC

Line

Interface

Multiplexer/

Demultiplexer

Radio Frame

Multiplexer

Radio Frame

Demultiplexer

Cable

Interface

Secondary

voltages

Control and
Supervision

Figure 82

Block diagram for ATU

5.2.1.1

Line Interface

This block provides the eight E1 line interfaces for connection of PDH traffic.
It interfaces the Multiplexer/Demultiplexer block by transmitting and receiving
the traffic (nxE1).

5.2.1.2

Ethernet

This block provides the 10BASE-T interface for connection to a site LAN and
the 10/100BASE-T interface for Ethernet traffic in Ethernet bridge applications.

The Ethernet traffic is mapped on nxE1, where n

≤

16, using one

inverse multiplexer. The E1s are transmitted to and received from the
Multiplexer/Demultiplexer block.

5.2.1.3

O&M

This block provides the LCT connection. The equipment is accessed using a
local IP address.

95

4/1555-CSH 109 32/1-V1 Uen B 2007-09-14

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Содержание MINI-LINK TN R3 ETSI

Страница 1: ...MINI LINK TN R3 ETSI Technical Description MINI LINK...

Страница 2: ......

Страница 3: ...MINI LINK TN R3 ETSI Technical Description...

Страница 4: ...written permission of the copyright owner The contents of this document are subject to revision without notice due to continued progress in methodology design and manufacturing Ericsson shall have no...

Страница 5: ...E1 Interfaces 25 3 5 STM 1 Interface 27 3 6 Ethernet Traffic 31 3 7 ATM Aggregation 36 3 8 Traffic Routing 42 3 9 Protection Mechanisms 44 3 10 Synchronization 52 3 11 Equipment Handling 55 3 12 MINI...

Страница 6: ...4 License Management 110 6 5 Performance Management 111 6 6 Security Management 113 6 7 Data Communication Network DCN 114 6 8 Management Tools and Interfaces 119 7 Accessories 123 7 1 Interface Conn...

Страница 7: ...e high level of integration rack space can be reduced by up to 70 compared to traditional solutions Configurations range from small end sites with one single radio terminal to large hub sites where al...

Страница 8: ...e this document Some functions described in this document are subject to license handling that is a license is required to enable a specific function 1 2 Revision Information This document is updated...

Страница 9: ...MMU2 E 155 MMU2 F 155 NPU3 E1 DS1 E1 DS1 LTU3 12 1 E1 DS1 Figure 2 Outdoor and indoor parts A MINI LINK TN R3 Network Element NE can from a hardware and installation point of view be divided into two...

Страница 10: ...transmission from 2x2 to 155 Mbit s operating within the 6 to 38 GHz frequency bands utilizing C QPSK and 16 64 128 QAM modulation schemes It can be configured as unprotected 1 0 or protected 1 1 For...

Страница 11: ...oduces the standard indoor units and their main functions For each unit there exist several types with different properties further described in Section 3 on page 9 and Section 4 on page 59 Access Mod...

Страница 12: ...and in Ethernet bridge applications The ATU comprises one self contained unit with a height of 1U for installation in 19 or metric racks It can also be mounted on a wall using a dedicated mounting set...

Страница 13: ...egrated installation The RAU and the antenna can also be fitted separately and connected by a flexible waveguide In all cases the antenna is easily aligned and the RAU can be disconnected and replaced...

Страница 14: ...MINI LINK TN R3 ETSI 8 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 15: ...ode Processor Unit Backplane TDM PCI SPI Power BPI Figure 7 System architecture 3 1 1 TDM Bus The Time Division Multiplexing TDM bus is used for traffic routing between the plug in units It is also us...

Страница 16: ...nnected to a PFU or NPU2 NPU3 B for AMM 2p AMM 2p B The internal power supply is distributed via the Power bus to the other plug in units When using two PFUs in an AMM the bus is redundant 3 1 5 BPI B...

Страница 17: ...2p is suitable for end site and repeater site applications There are two models AMM 2p has two half height slots equipped with one NPU2 and the optional LTU 12 1 Kit AMM 2p B has two half height slots...

Страница 18: ...connected to the NPU2 The power is distributed from the NPU2 to the plug in units via the power bus in the backplane of the AMM _ External Power Supply 48 V DC or 24 V DC 7019 NPU2 Figure 11 Power sup...

Страница 19: ...on and the Product Catalog Air in Air out 9715 02 03 02 03 MMU2 E 155 NPU3 Figure 13 Cooling airflow in AMM 2p B The air enters at the right hand side of the AMM and exits at the left hand side of the...

Страница 20: ...AMM 6p B C D is 3U PFU3 07 NPU 06 05 04 03 02 08 FAU2 01 PFU3 00 PFU3 LTU 155e MMU2 B 4 34 MMU2 B 4 34 LTU 155e o LTU 16x2 PFU3 PFU3 FAU2 NPU1 B 7855 FAU2 NPU1 B Figure 14 AMM 6p B PFU3 B FAU2 NPU3 9...

Страница 21: ...Power Supply 9712 PFU3 48V DC PFU3 B 48V DC or 24V DC Figure 17 Power supply for AMM 6p B C or D PFU3 PFU3 B provides input low voltage protection transient protection soft start and electronic fuse t...

Страница 22: ...ven slot number A cable shelf is fitted directly underneath the AMM to enable neat handling of cables connected to the fronts of the plug in units An FAU1 is fitted on top of the AMM unless forced air...

Страница 23: ...4 V DC power supply see Section 7 2 on page 126 The ICF1 is not used in this installation alternative FAU1 PFU1 ICF1 _ _ _ _ FAU1 PFU1 Power supply with ICF1 Power supply without ICF1 _ _ External Pow...

Страница 24: ...air enters through the cable shelf flows directly past the plug in units and exits at the top of the AMM through the air guide plate If the indoor location has other fan units which provide sufficient...

Страница 25: ...DC B Fan alarm A Fan alarm B 6710 Figure 23 FAU1 FAU1 has an automatic fan speed control and houses three internal fans FAU1 has two 48 V DC connectors for redundant power supply Two connectors are a...

Страница 26: ...U2 Fits in an AMM 2p NPU3 Fits in an AMM 2p B AMM 6p C or AMM 6p D NPU2 0V 0V DC DC 48V 24V E1 DS1 3A 3D 10 100 Base T F P O M NPU1 B NPU2 10 100BASE T 1x 4xE1 O M 2x 4xE1 User I O 10 100BASE T O M No...

Страница 27: ...for traffic connections Three User Input ports Three User Output ports NPU2 1x 4xE1 for traffic connections Filters the external power and distributes the internal power The Ethernet interface can be...

Страница 28: ...Node Processor Secondary voltages Line Interface Figure 25 Block diagram for NPU1 B 8280 PCI SPI TDM TDM Bus PCI Bus SPI Bus Power Power Bus 4xE1 10 100BASE T USB O M Ethernet Line Interface Node Pro...

Страница 29: ...Node Processor communicates with the TDM block via the PCI block 3 3 2 2 PCI This block interfaces the PCI bus used for control and supervision communication The block communicates with the Node Proce...

Страница 30: ...2 7 Ethernet This block provides a 10 100BASE T connection to site LAN and 10 100BASE T traffic in Ethernet bridge applications The Ethernet traffic is mapped on nxE1 where n 16 using one inverse mult...

Страница 31: ...1 Overview The following LTUs with E1 interfaces are available LTU 16 1 Fits in any AMM The LTU 16 1 provides 16 additional E1 interfaces LTU3 12 1 Fits in an AMM 2p as LTU 12 1 Kit incl washer AMM 2...

Страница 32: ...trol and Supervision This block interfaces the PCI bus and handles control and supervision Its main functions are to collect alarms control settings and tests The block communicates with the NPU over...

Страница 33: ...n LTU 155 is needed as a terminal multiplexer to extract the E1s from the STM 1 See Section 4 2 on page 61 3 5 1 Overview At aggregation sites where the high capacity optical network connects to the m...

Страница 34: ...the LTU 155 LTU 155e Provides one electrical interface G 703 mapping 63xE1 LTU 155e o Provides one optical interface short haul S 1 1 and one electrical interface G 703 mapping 63xE1 Note only one at...

Страница 35: ...adiation When Open Class 1 Laser Fault Power BR RX TX EL ERICSSON LTU 155e Fault Power BR Optical 8278 LTU 155e LTU 155e o LTU B 155 Optical Electrical Electrical Electrical Figure 31 LTU 155 3 5 2 1...

Страница 36: ...nctions are to collect alarms control settings and tests The block communicates with the NPU over the PCI bus The block holds a Device Processor DP running plug in unit specific software 3 5 2 1 3 SPI...

Страница 37: ...page 52 3 6 Ethernet Traffic 3 6 1 Overview ETU2 provides five 10 100BASE T interfaces and one 10 100 1000BASE T interface See Section 3 6 3 on page 33 NPU2 provides one 10 100BASE T interface combine...

Страница 38: ...e units using RJ 45 connectors with support for shielded cable The Ethernet bridge connections have auto negotiation 10 100 Mbit s speed and full half duplex Transparency to all kinds of traffic is su...

Страница 39: ...r CRC 32 errors Number of sent received frames Number of sent received octets 3 6 3 Ethernet Interface Unit ETU The ETU2 provides five 10 100BASE T interfaces and one 10 100 1000BASE T interface It ca...

Страница 40: ...Inverse Multiplexers Each inverse multiplexer converts one Ethernet connection into nxE1 where n 16 transmitted to and received from the TDM block 3 6 3 1 3 Ethernet This block provides the unit s ext...

Страница 41: ...I This block interfaces the SPI bus and handles equipment status Failure is indicated by LED s on the front of the unit 3 6 3 1 6 Power This block interfaces the Power bus and provides secondary volta...

Страница 42: ...P CBR 11xE1 VC UBR Shared 13 Mbit s VC UBR VP CBR 8xE1 VC UBR 11 3 Mbit s VC CBR 4 7 Mbit s VC CBR 4 7 Mbit s VP CBR 8xE1 VC UBR 11 7 Mbit s VC CBR 4 3 Mbit s VC CBR 4 3 Mbit s 8924 MINI LINK TN with...

Страница 43: ...in an AMM 6p B C D or AMM 20p 8490 ERICSSON AAU Fault Power BR AAU Figure 39 AAU The AAU has no front connectors but interfaces up to 96 E1s in the backplane The E1s can be used as single links with...

Страница 44: ...tions VCC and 100 Virtual Path Connections VPC Service Categories support CBR rt VBR nrt VBR 1 2 3 UBR and UBR MDCR Policing Shaping F4 F5 OAM support for Fault Management 3 7 2 1 Functional Blocks Th...

Страница 45: ...ble bandwidth The function of the ATM Cross connect block can be summarized as Policing VP VC Cross connection Buffering and Congestion Thresholds Scheduling and Shaping Policing The policing function...

Страница 46: ...higher the threshold Scheduling and Shaping Shaping is intended as a traffic limitation on the peak rate The ATM Cross connect provides 31 independent schedulers that are individually mapped to any o...

Страница 47: ...e Defect Indication RDI for reporting remote defect indications in the backward direction RDI is sent to the far end from a VPC VCC endpoint as soon as it has detected an AIS condition Loop Back LB al...

Страница 48: ...rough the NE This means that an aggregation site can be realized using one AMM housing several Radio Terminals with all the cross connections done in the backplane Each plug in unit connects nxE1 to t...

Страница 49: ...application provides a way to provision end to end E1 connections in a network The network can be planned in advance without the need for the actual network When the pre configured E1 connections are...

Страница 50: ...ignal failure as switching criterion Physical link layer protection using MSP 1 1 indicated by the link c between two adjacent NEs 1 and 2 in Figure 42 on page 44 Physical link layer protection uses b...

Страница 51: ...is free from alarms In manual mode the switching is only initiated from the management system regardless of the state of the links connections 3 9 2 Network layer protection 3 9 2 1 1 1 E1 SNCP 1 1 E...

Страница 52: ...on 6628 Ring Tree Star Figure 44 Network topologies The 1 1 E1 SNCP mechanism described in the previous section can be used to create protected ring structures in the microwave network In a ring topol...

Страница 53: ...s dropped off to star or tree structures as shown in Figure 45 on page 47 As an example consider the nodes A and E in Figure 45 on page 47 To protect the connection from A to E the two alternative con...

Страница 54: ...e at a time as illustrated in Figure 46 on page 48 The unit intercommunication is done over the BPI bus Active LTU155e o 63xE1 SDH Mapping Passive LTU155e o STM 1 electrical or optical SDH Mapping MSP...

Страница 55: ...12 VC 4 SF SD 63xE1 MSP Switch Controller MS RS MS RS Tx Tx Tx Rx Rx Rx Rx Switch 6633 LTU 155 LTU 155 E1 VC 12 VC 4 63xE1 MSP Switch Controller Figure 47 MSP 1 1 principle 49 4 1555 CSH 109 32 1 V1...

Страница 56: ...smitter side The ADMs at both ends carry out the line protection A full MINI LINK high capacity equipment protection can also be achieved by using only one optical interface on the ADM without the MSP...

Страница 57: ...able SFP see Section 7 3 on page 128 plus an external optical combiner splitter see Figure 49 on page 51 the STM 1 input output are protected while one MMU Tx laser is transmitting the other one must...

Страница 58: ...Ethernet over PDH will have outgoing synch generated by the local oscillators MINI LINK TN ETSI can from release 3 1 also be configured to Network Synchronized mode where the node maintains a SEC and...

Страница 59: ...1 group are available for nomination It is also possible to use one of the E1 ports on the NPU1 B NPU2 and NPU3 as an external 2048 kHz synchronization clock input interface The SEC will select and d...

Страница 60: ...PDH interfaces Towards protected interfaces squelch are configured onto the protected 1 1 interface not on the individual interfaces The squelch Wait To Restore Time is also configurable per interface...

Страница 61: ...has to be performed Various restarts can be ordered from the management system A cold restart can be initiated for an NE or single plug in unit this type of restart disturbs the traffic A warm restar...

Страница 62: ...0 2x64 kbit s used for IP DCN O M V 24 access server ERICSSON SMU2 O M E3 3A E2 3B 3C E1 2A 2B DIG SC 1A 1B Fault Power BR E3 2xE2 2xE0 O M SMU2 2xE1 6728 Figure 52 SMU2 All the traffic capacities are...

Страница 63: ...radio link comprise Two RAUs Two antennas or one antenna with a power splitter Two MMU2s One SMU2 Two radio cables for interconnection The radio terminal is protected 1 1 with 34 2 Mbit s traffic capa...

Страница 64: ...MINI LINK TN R3 ETSI 58 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 65: ...ected 1 1 NPU 8x2 INFORMATION MMU2 4 34 MMU2 4 34 LTU 16x2 LTU 155e o 48V Power A 48V FAN UNIT Power B Alarm B Alarm A Fault Power 8483 NPU1 B MMU2 4 34 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER...

Страница 66: ...if the active transmitter malfunctions Both RAUs are receiving signals and the best signal is used according to an alarm priority list In working standby mode both radio paths are active in parallel u...

Страница 67: ...pacity PDH plug in unit used for the following modulation schemes and traffic capacities in Mbit s 16 QAM 22xE1 46xE1 128 QAM 35xE1 75xE1 MMU2 E 155 A high capacity SDH plug in unit used for the follo...

Страница 68: ...placed in the same AMM as MMU2 B or MMU2 C but can not be part of the same radio terminal 9720 MMU2 C MMU2 C 60V RAU Fault Power BR ERICSSON MMU2 B MMU2 B 60V RAU Fault Power BR ERICSSON RAU MMU2 D 6...

Страница 69: ...the internal and external functions of the MMU based on the block diagram in Figure 58 on page 63 6637 Radio Frame Multiplexer Modulator Cable Interface Demodulator Radio Frame Demultiplexer SPI TDM...

Страница 70: ...raffic nxE1 and DCC It performs 2 8 and 8 34 multiplexing depending on the traffic capacity for further transmission to the Radio Frame Multiplexer In the receiving direction it performs 34 8 and 8 2...

Страница 71: ...DCC DCC comprises nx64 kbit s channels used for DCN communication over the hop where 2 n 9 depending on traffic capacity and modulation HCC The Hop Communication Channel HCC is used for the exchange...

Страница 72: ...ated by mixing with a 490 MHz signal 4 2 2 4 Cable Interface The following signals are frequency multiplexed in the Cable Interface for further distribution through a coaxial cable to the outdoor RAUs...

Страница 73: ...formance monitoring Stuffing control bits are processed for the traffic and service channels Traffic On the receiving side the following is performed to the traffic data AIS insertion at signal loss o...

Страница 74: ...rence Canceller XPIC functionality Microwave signals can be transmitted in two separate and independent orthogonal polarizations vertical and horizontal The signals can be transmitted at the same time...

Страница 75: ...e for lifting and hoisting There are also two hooks and catches to guide it for easier handling when fitting to or removing from an integrated antenna It comprises a cover vertical frame microwave sub...

Страница 76: ...nnection to mast ground 3 Test port for antenna alignment 4 Red LED Unit alarm Green LED Power on 4 3 3 RAU Types A RAU is designated as RAUX Y F for example RAU2 N 23 When ordering additional informa...

Страница 77: ...71and Figure 63 on page 72 Transmit IF Signal Processing DC DC Converter Secondary Voltages Cable Interface Branching Filter RCC Control and Supervision Processor Alarm and Control DC MMU Alignment Po...

Страница 78: ...Figure 63 Block diagram for RAU1 N and RAU2 N 4 3 4 1 Cable Interface Transmit IF signal a modulated signal with a nominal frequency of 350 MHz Up link Radio Communication Channel RCC an Amplitude Sh...

Страница 79: ...gives an IF signal of approximately 2 GHz 4 3 4 6 Filter and Amplifier The converted signal is amplified and fed through a bandpass filter 4 3 4 7 Transmit RF Oscillator This oscillator is implemente...

Страница 80: ...f the received 140 MHz signal through a control signal setting the division number in the IF PLL A frequency error signal from the MMU is used to shift the receiver oscillator in order to facilitate a...

Страница 81: ...ctivation deactivation channel frequency settings output power settings and RF loop activation deactivation The processor controls the RAU s internal processes and loops 4 3 4 19 DC DC Converter The D...

Страница 82: ...4 2 Installation 4 4 2 1 Integrated Installation For a 1 0 configuration the RAU is fitted directly to the rear of the antenna in integrated installation Single polarized antennas up to 1 8 m in diame...

Страница 83: ...ity of the installations RADIO 2 8500 RAU1 RAU2 15 GHz 15 GH z ALAR M POW ER ALIGNMENT RADIO CABLE Figure 66 RAUs fitted to integrated power splitters 4 4 2 2 Separate Installation All antennas with I...

Страница 84: ...50 120 mm or on L profiles 40x40x5 80x80x8 mm with two anodized aluminum clamps All screws and nuts for connection and adjustment are in stainless steel NORD LOCK washers are used to secure the screw...

Страница 85: ...dedicated sub channel 9427 Power Splitter Power Splitter Sector antenna Power Splitter Figure 70 Overview of MINI LINK TN PMP Functionality The system is scalable and offers configurations with two t...

Страница 86: ...5 GH z ALAR M POW ER ALIGNMENT RADIO CABLE RADIO CABLE ALIGNMENT ALARM POWER RADIO CABLE ALIGNMENT ALARM POWER 9426 Figure 71 Mounting kits for installation of two left up to four right radio terminal...

Страница 87: ...ready to transmit if the active transmitter malfunctions Both RAUs receive signals When using two antennas they can be placed for space diversity with a mutual distance where the impact of fading is...

Страница 88: ...failure in the TDM Multiplexer part of the active MMU This is accomplished by the NPU configuring the MMUs to listen to a certain TDM bus slot The TA switch is used to feed the multiplexed traffic si...

Страница 89: ...nt Working Standby is that only one RAU is active Hence Tx must be switched off in the malfunctioning Radio Terminal and switched on in the standby This is controlled by the DP in the Control and Supe...

Страница 90: ...on page 84 Radio Frame Multiplexer Modulator Cable Interface TDM Multiplexer Demultiplexer TDM PCI RAU A Node Processor MMU A NPU RAU B TDM Rx Switch BPI BPI 6667 Switch Logic Diversity Switch Radio...

Страница 91: ...MMU Rx This is in accordance with the Radio Segment Protection case with the difference that signal failure alarms have a higher priority level than the EW signals Alarms generated in the RAU and MMU...

Страница 92: ...grated dual polarized antennas or four separate antennas See Figure 75 on page 86 ML TN MMU 2 F 155 MMU 2 F 155 MMU 2 F 155 MMU 2 F 155 ML TN MMU 2 F 155 MMU 2 F 155 MMU 2 F 155 MMU 2 F 155 9966 Figur...

Страница 93: ...acent BPI 2 sharing slots for AMM 20p 2 3 and 4 5 6 7 and 8 9 etc is related to the same polarization of the transmitted signal over the same wireless channel Therefore the front panel XPIC cross cabl...

Страница 94: ...8 or working standby see Figure 79 on page 89 9969 f1 VA Near end Node Far end Node MMU2 F 155 Active Active Active f1 VB f1 HA Active f1 HB XPIC cross cables MMU2 F 155 MMU2 F 155 MMU2 F 155 MMU2 F 1...

Страница 95: ...arization e g V and the switching criteria are satisfied the switching to the protection link is initiated from VA to VB If the fault does not cause a high degradation of the cancelling signal on the...

Страница 96: ...on of a comparable entity on both polarizations may happen In hot standby mode when the switching process is initiated the receivers will lock to the new active TX and the XPIC units will re converge...

Страница 97: ...7 2 ATPC Mode ATPC is used to automatically adjust the transmit power Pout in order to maintain the received input level at the far end terminal at a target value The received input level is compared...

Страница 98: ...sholds BER of the composite signal and alarm generation with a configurable threshold Block based performance data on the received composite signal This data is presented as Errored Seconds ES Severly...

Страница 99: ...he following sections provide important information Radio Unit RAU see Section 4 3 on page 69 Antennas 1 0 configuration see Section 4 4 on page 76 Transmit Power Control see Section 4 7 on page 90 Pe...

Страница 100: ...the ATU functions Eight E1 interfaces One 10BASE T Ethernet interface for connection to a site LAN One 10 100BASE T Ethernet interface for Ethernet traffic System control and supervision IP router for...

Страница 101: ...Block diagram for ATU 5 2 1 1 Line Interface This block provides the eight E1 line interfaces for connection of PDH traffic It interfaces the Multiplexer Demultiplexer block by transmitting and receiv...

Страница 102: ...transmitted to the Line Interface and the Ethernet blocks 5 2 1 6 Control and Supervision This block handles system control and supervision Its main functions are to collect alarms control settings an...

Страница 103: ...synchronized each eighth frame super frame The FEC bits are inserted according to the frame format and calculated using an interleaving scheme 5 2 1 8 Modulator The composite data stream from the Rad...

Страница 104: ...hed using FEC parity bits in combination with a data quality measurement from the Demodulator The descrambler transforms the signal to its original state enabling the Demultiplexer to properly distrib...

Страница 105: ...Access Termination Unit ATU HCC The Hop Communication Channel HCC is used for exchange of control and supervision information between near end and far end 99 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 106: ...100 8276 Power Secondary voltages Line Interface O M RL External Power Supply 24 60 V DC Radio Frame Multiplexer Modulator Cable Interface Demodulator Radio Frame Demultiplexer DCC DCC RCC RAU Traffic...

Страница 107: ...Multiplexer The Radio Frame Multiplexer handles multiplexing of different data types into one data stream scrambling and FEC encoding The following data types are multiplexed into the composite data s...

Страница 108: ...e Phase Shift Keying an offset QPSK modulating technique is used It has a high spectrum efficiency compared to other constant envelope schemes The Modulator consists of a phase locked loop VCO operati...

Страница 109: ...xing Demultiplexing is performed according to the used frame format The Demultiplexer generates a frame fault alarm if frame synchronization is lost The number of bits with errors in the traffic data...

Страница 110: ...MINI LINK TN R3 ETSI 104 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 111: ...y other SNMP based management system To enable a management system to synchronize alarm status there is a notification log alarm history log where all traps are recorded There is also a list of curren...

Страница 112: ...v1 traps These traps are translated from the IRP format using co existence rules for v1 and v2 v3 traps RFC 2576 For a full description of alarms see user documentation 6 1 2 Loops Loops can be used...

Страница 113: ...nother NE can be used to test a connection as far as possible in the looped NE In the MMU2 E F a Local Loop at the far end loops back the STM 1 traffic at base band level The following loop is only su...

Страница 114: ...rts a Loop Back function described in Section 3 7 2 2 on page 41 6 1 3 User Input Output The NPU1 B provides three User Input and three User Output ports The NPU3 provides two User Output ports The Us...

Страница 115: ...s while the software is being loaded During the execution of the software download a progress indication is provided in the user interface When the download is completed the new software and the previ...

Страница 116: ...he NE has a license inventory view An attempt to configure a function without a suitable LKF installed causes an error and the service will be unavailable until the file is installed The error is sent...

Страница 117: ...and the previous 24 hours Specific information on performance management is also available as listed below Performance counters for Ethernet traffic are described in Section 3 6 2 on page 33 Performa...

Страница 118: ...e bit error rate as a function of the elapsed time is the test result The test can be started and stopped locally or remotely using the management system Several BERTs can be executed concurrently wit...

Страница 119: ...and View based Access Model VACM are supported This means that additional users and passwords might be defined by external SNMP v3 managers The security level is authentication no privacy where MD5 i...

Страница 120: ...amic Host Configuration Protocol DHCP is used to allocate IP addresses in the DCN The NE has a DHCP relay agent for serving other equipment on the site LAN NTP FTP DCN DNS DHCP MINI LINK TN LCT Site L...

Страница 121: ...ically established at power up 6 7 2 1 DCN in SDH 4665 4665 1 9 10 274 1 3 4 5 9 RSOH AU Pointers MSOH Payload RFCOH Figure 90 Frame The following channels can be used for DCN transportation in SDH 12...

Страница 122: ...R3 can use up to two of its connected E1s for transport of IP DCN The following options are available Dedicated E1 for DCN A structured or unstructured E1 can be dedicated for DCN For the structured...

Страница 123: ...dresses is limited Using numbered interfaces for the PPP links would normally require using one IP subnet with two addresses for each radio hop For a large aggregation site this would imply a lot of a...

Страница 124: ...stub area or totally stub area An NE can act as an Internal Router IR or an Area Border Router ABR Virtual links are supported which is useful when an area needs to be split in two parts Link summariz...

Страница 125: ...Element Management The element management function provides tools for on site installation configuration management fault management performance management and software upgrade It is also used to conf...

Страница 126: ...te access to several network elements one by one ServiceOn Microwave supports a real time window reporting alarms and events from the managed network elements It is possible to filter alarms on the ba...

Страница 127: ...Management Figure 92 CLI 121 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 128: ...MINI LINK TN R3 ETSI 122 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 129: ...ed cables to be connected to the units The use of an ICF enables easy on site installation and flexibility with a minimum of impact when re configuring traffic cables The following types of ICF are av...

Страница 130: ...E1 FUSE A FUSE B 2A 2B 2C 2D USER I O 1A 1F 01 48V DC IN 00 48V DC IN E1 User I O 48 V DC IN E1 PFU1 Figure 93 ICF1 120 3A 3B 3C 3D TRAFFIC E1 2A 2B 2C 2D USER I O 1A 1F User I O User I O 4xE1 E1 E1...

Страница 131: ...IN 4A 4B 4C 4D 3A TRAFFIC E1 3B 3C 3D OUT E1 E1 E1 E1 8493 4xE1 Figure 95 ICF 16x2 75 8494 TRAFFIC E1 IN OUT A B C D E1 4xE1 Figure 96 ICF3 with one connection box and connection cable Sofix 125 4 15...

Страница 132: ...ndard 19 or metric rack or on a wall using a dedicated mounting set EARTH GROUNDING FAU3 Fault Power 48VDC Power Alarm 48VDC OUT A B 00 01 48VDC 0V 48VDC 0V 3 15A 250V 3 15A 250V 48VDC 0V 48VDC 0V PSU...

Страница 133: ...out Air out 6724 Figure 98 Cooling airflow in the PSU DC DC kit The air enters at the front and gable on the right hand side of the sub rack flows past the plug in units and exits at the rear top and...

Страница 134: ...ptical SFP to form an EEP solution see Section 3 9 5 on page 51 9358 Figure 100 Optical combiner splitter 7 5 DCN LAN Switch The DCN LAN Switch gives the possibility to connect up to 8 equipments to o...

Страница 135: ...s Full duplex P1 priority P2 P3 P4 P5 P6 P7 P8 9467 Figure 101 DCN LAN Switch ERICSSON PoE DLS P1 PWR PoE SEL HOLD TO CONFIRM P1 manual P2 4 manual P5 8 manual 100 Mbps Full duplex P1 priority P2 P3 P...

Страница 136: ...MINI LINK TN R3 ETSI 130 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 137: ...BPI Board Pair Interconnect BR Board Removal C QPSK Constant envelope offset Quadrature Phase Shift Keying CBR Constant Bit Rate CC Continuity Check CLI Command Line Interface CLP Cell Loss Priority C...

Страница 138: ...icates FAU Fan Unit FEC Forward Error Correction FTP File Transfer Protocol GSM Global System for Mobile Communications HCC Hop Communication Channel HDLC High Level Data Link Control HEC Header Error...

Страница 139: ...oduct family for microwave transmission featuring comprehensive traffic handling functions MMU Modem Unit MS Multiplexer Section MSM MINI LINK Service Manager MSP Multiplexer Section Protection NE Net...

Страница 140: ...Signal Degradation SDH Synchronous Digital Hierarchy SECB Severely Errored Cell Blocks SES Severely Errored Second SF Signal Failure SFP Small Form Factor Pluggable SMU Switch Multiplexer Unit SNCP S...

Страница 141: ...er 12 2 Mbit s VC 4 Virtual Container 4 155 Mbit s VCC Virtual Channel Connection VCI Virtual Channel Identifier VLAN Virtual Local Area Network VP Virtual Path VPC Virtual Path Connection VPI Virtual...

Страница 142: ...MINI LINK TN R3 ETSI 136 4 1555 CSH 109 32 1 V1 Uen B 2007 09 14...

Страница 143: ...6p B C D 13 power supply 15 Amplitude Shift Keying See ASK Antennas 76 mounting kit 78 Area Border Router See ABR ASK 72 ATM 5 interfaces 38 ATM Aggregation Unit See AAU ATM Cross connect 39 ATPC 90...

Страница 144: ...U 25 E3 57 Early Packet Discard See EPD EEP 51 Electrical interface 28 Element management 119 ELP 50 Engineering Order Wire EOW 24 Enhanced Equipment Protection See EEP EOW 24 EPD 40 Equipment and Lin...

Страница 145: ...nuity See LOC LTU 5 E1 25 STM 1 28 LTU 155 block diagram 30 LTU 155e 28 LTU 155e o 28 LTU 16 1 25 block diagram 26 LTU B 155 28 LTU3 12 1 25 block diagram 26 M Management 105 interfaces 119 tools 119...

Страница 146: ...Random Bit Sequence See PRBS PSU 126 PSU DC DC Kit 126 cooling 126 Q QAM 66 QAM MMU 62 R Radio Communication Channel See RCC Radio segment protection 83 Radio Terminal 4 59 protected 1 1 60 unprotecte...

Страница 147: ...Synchronization 31 52 System architecture 9 overview 3 T TDM bus 9 Time Division Multiplexing See TDM Traffic routing 42 Transmit Power Control 90 Tx equipment protection 82 83 U UBR 38 Uni direction...

Страница 148: ......

Страница 149: ......

Страница 150: ...Ericsson AB Broadband Networks SE 431 84 M lndal Sweden Telephone 46 31 747 00 00 Fax 46 31 27 72 25 www ericsson com EN LZT 712 0211 R3C Ericsson AB 2007 All Rights Reserved...

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