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Technical Description

3.11

Synchronization

3.11.1

Overview

MINI-LINK TN is by default working in Free Running mode. In this mode the
node is not a part of the synchronization network, and does not maintain a
SEC. The node behavior can be described by how the different protocols are
processed:

•

Unstructured primary rate PDH channels are passed transparently except
for timing recovery and jitter attenuation. This is also valid for robbed
timeslot DCN channels.

•

STM/STS interfaces are configured to take outgoing synch from local
oscillator or loop timing. If SSM is enabled “Do Not Use” is transmitted.

•

PDH primary rate channels terminated in an AAU/ATM switch are
configured to take outgoing synch from local oscillator or loop timing.

•

PDH primary rate channels used for Ethernet over PDH will have outgoing
synch generated by the local oscillators.

MINI-LINK TN ETSI can also be configured to Network Synchronized
mode where the node maintains a SEC and distributes synchronization and
synchronization quality level status on cross connected PDH channels (ITU-T
G.813).

Note that unstructured primary rate PDH channels are still passed transparently
as in the Free Running mode, but now with reduced jitter. This is also valid for
PDH connections that are used for DCN including robbed timeslot DCN.

With Network Synchronized mode it possible to build a synchronized network
where all the NEs are synchronized to the same source. Figure 50 on page
61 shows an example of a network where the synchronization information is
carried to all the NEs through an assigned path. In case of link failures the
synchronization may be reestablished using the unassigned synchronization
paths.

60

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Содержание MINI-LINK TN R4 ETSI

Страница 1: ...Technical Description MINI LINK TN R4 ETSI MINI LINKTM ...

Страница 2: ...the 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 liability for any error or damage of any kind resulting from the use of this document 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 3: ...3 5 E1 Interfaces 26 3 6 SDH Traffic 29 3 7 Ethernet Traffic 35 3 8 ATM Aggregation 43 3 9 Traffic Routing 49 3 10 Protection Mechanisms 51 3 11 Synchronization 60 3 12 Equipment Handling 63 3 13 MINI LINK E Co siting 65 3 14 Unstructured E3 Interface 66 4 Radio Terminals 67 4 1 Overview 67 4 2 Modem Unit MMU 69 4 3 Radio Unit RAU 80 4 4 Antennas 87 4 5 PMP Functionality 91 4 6 1 1 Protection 93 4...

Страница 4: ... Software Management 114 5 7 Data Communication Network DCN 114 5 8 Management Tools and Interfaces 120 6 Accessories 125 6 1 Interface Connection Field ICF 125 6 2 PSU DC DC Kit 128 6 3 Small Form Factor Pluggable 130 6 4 Optical splitter combiner 130 6 5 DCN LAN Switch 131 6 6 MPH for MINI LINK TN 132 6 7 TMR 9302 133 Glossary 135 Index 141 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 5: ...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 all the traffic from a number of southbound links is aggregated into one link microwave or optical in the northbound direction 07 NPU 06 05 04 03 02 08 FAU2 01 PFU3 00 PFU3 PFU3 PFU3 FAU2 NPU3 MMU2 E 15...

Страница 6: ...ements the latter ones will supersede this document Some functions described in this document are subject to license handling that is a soft key is required to enable a specific function see MINI LINK TN Soft Keys 1 2 Revision Information This document is updated due to the introduction of MINI LINK TN R4 Information about the following products and accessories is new or updated in TN 4 0 AMM 2p B...

Страница 7: ...02 08 FAU2 01 PFU3 00 PFU3 PFU3 PFU3 FAU2 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 R4 Network Element NE can from a hardware and installation point of view be divided into two parts Indoor part see Section 2 2 on page 5 Outdoor part see Section 2 3 on page 6 An NE with a subrack can from a functional and configuration point of view ...

Страница 8: ...anical housing power distribution and cooling For more information see Section 3 on page 9 Radio Terminals A Radio Terminal provides microwave 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 more information see Section 4 on page 67 Basic Node Exte...

Страница 9: ...to standard 19 or metric racks The following text introduces 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 67 Access Module Magazine AMM The AMM houses the plug in units and provides backplane interconnection of traffic power and control signals Node Processor Unit ...

Страница 10: ... coaxial cable per MMU carrying full duplex traffic DC supply voltage as well as management data 2 3 Outdoor Part The outdoor part is supplied for various frequency bands It consists of an antenna a Radio Unit RAU and associated installation hardware For protected 1 1 systems two RAUs and one or two antennas are used When using one antenna the two RAUs are connected to the antenna using a power sp...

Страница 11: ...l separate installation 1 0 terminal integrated installation 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER 15 GHz 15 GHz ALARM POWE R ALIG NME NT RAD IO CAB LE Figure 5 RAUs and antennas in different installation alternatives 7 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 12: ...Technical Description 8 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 13: ... Processor Unit Backplane High Speed PCI SPI Power BPI TDM Figure 6 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 used for routing of the DCN channels used for O M data transport The lowest switching level is E1 for traffic connections and 64 kbit s for DCN channels The traffic connections on the TDM bus ar...

Страница 14: ... a PFU The internal power supply is distributed via the Power bus to the other plug in units When using two PFUs in a subrack the bus is redundant 3 1 5 BPI Bus The Board Pair Interconnect BPI bus is used for communication between two plug in units in a protected 1 1 configuration for example when using two LTU 155 units in a Multiplexer Section Protection MSP 1 1 configuration It also interconnec...

Страница 15: ...e remaining half height slot can be equipped with LTU ETU SAU or SXU Two full height slots can be equipped with MMU LTU or ETU AMM 2p B can be fitted in a standard 19 or metric rack or on a wall using a dedicated mounting set The height of an AMM 2p B is 1U 3 2 1 1 Power Supply AMM 2p B is power supplied by 48 V DC or 24 V DC redundant power Two DC connectors at the left side of the front panel ar...

Страница 16: ...brack and exits at the left hand side of the subrack 3 2 2 AMM 6p C D AMM 6p C D is suitable for medium sized hub sites or prioritized small sites with 1 1 protection AMM 6p C or D have four D or five C full height horizontal slots four D or two C half height horizontal slots and two half height vertical slots They house one or two NPU3 NPU3 B one or two PFU3 B and one FAU2 see Figure 10 on page 1...

Страница 17: ...2 1 E1 DS1 PFU FAU NPU 10068 Figure 11 AMM 6p D 3 2 2 1 Power Supply AMM 6p C D is power supplied by 48 V DC or 24 V DC connected to the PFU3 B The power is distributed from the PFU3 B to the other units via the power bus in the backplane of the subrack The power system is made redundant using two PFU3 Bs utilizing the redundant power bus _ _ PFU External Power Supply 10069 PFU3 B 48V DC or 24V DC...

Страница 18: ...ized hub sites for example at the intersection between the optical network and the microwave network It has 20 full height slots one housing an NPU1 B and two half height slots housing one or two PFU1 The remaining slots can be equipped with MMU LTU AAU SMU and ETU Protected pairs require two MMUs in a protected 1 1 Radio Terminal and are positioned in adjacent slots starting with an even slot num...

Страница 19: ... by 48 V DC connected to the PFU1 or via an Interface Connection Field ICF1 The power is distributed from the PFU1 to the plug in units via the power bus in the backplane of the subrack The power system is made redundant using two PFU1s utilizing the redundant power bus The PSU DC DC kit enables connection to 24 V DC power supply see Section 6 2 on page 128 The ICF1 is not used in this installatio...

Страница 20: ...m FAU1 as the FAU1 is not connected to the subrack backplane PFU1 provides input low voltage protection transient protection soft start and electronic fuse to limit surge currents at start up or overload currents during short circuit A redundant PFU1 can be extracted or inserted without affecting the power system 3 2 3 2 Cooling Forced air cooling is provided by FAU1 fitted directly above the subr...

Страница 21: ...Air Guide Plate FAU1 AMM 20p B Air in Air out Cable Shelf 10071 Figure 17 Side view of the airflow in AMM 20p B 48V Power A 48V FAN UNIT Power B Alarm B Alarm A Fault Power 48 V DC A 48 V DC B Fan alarm A Fan alarm B 6710 Figure 18 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 also available...

Страница 22: ...M 6p C or AMM 6p D NPU3 B Fits in an AMM 2p B AMM 6p C or AMM 6p D NPU1 B NPU3 2x 4xE1 User I O 10 100BASE T O M Not used ERICSSON NPU1 B 10 100Base T Console O M E1 3A 3D E1 2A 2D User I O 1A 1I Fault Power BR RMM NPU3 B 10036 NPU3 TR 4A 4D User Out E F 10 100 Base T F P O M 2x 10 100BASE T 4xE1 2xUser Out O M RMM E1 DS1 10 100 Base T LAN TR 3 NPU3 B E1 DS1 10 100 1000BASE T 10 100 1000BASE T TR ...

Страница 23: ...pe as summarized below NPU1 B 2x 4xE1 for traffic connections Three User Input ports Three User Output ports NPU3 1x 4xE1 for traffic connections Two User Output ports Ethernet traffic port NPU3 B 1x 4xE1 for traffic connections Two User Output ports Ethernet traffic port Ethernet switch 3 3 2 Functional Blocks This section describes the internal and external functions of the NPUs based on the blo...

Страница 24: ...ocessor Secondary voltages Line Interface Figure 20 Block diagram for NPU1 B 10073 PCI SPI TDM TDM Bus PCI Bus SPI Bus Power Power Bus 1x10 100BASE T DCN Site LAN 1x10 100BASE T Ethernet Traffic USB O M Ethernet Line Interface Node Processor Secondary voltages User Output 4xE1 2xUser Out Figure 21 Block diagram for NPU3 20 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 25: ... transmitting the traffic nxE1 and DCN channels nx64 kbit s The 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 Processor which handles control and supervision of the whole NE 3 3 2 3 SPI This block interfaces the SPI bus used for equipment status commu...

Страница 26: ...thernet traffic is mapped on NxE1 where N 16 using one inverse multiplexer For NPU3 B this block provides two 10 100 1000BASE T interfaces one for Ethernet Traffic and one for Ethernet Traffic or 10 100BASE T Ethernet Site LAN The Ethernet traffic is a switched service from the Ethernet switch See Section 3 7 on page 35 for more information on Ethernet traffic An IP telephone can be connected to t...

Страница 27: ...Node 3 3 2 11 User I O This block handles the User In and User Out ports on the NPU1 B and the User Out ports on the NPU3 and NPU3 B see Section 5 1 3 on page 109 23 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 28: ...the NPU where the routing is performed and LAN line and radio interfaces are made available For more information on DCN see MINI LINK DCN Guideline ETSI SAU3 AUX 2 AUX 1 10038 G 703 V 28 V 11 G 703 V 28 AUX 1A User I O 1B 1J AUX 2 SAU3 Fault Figure 23 SAU3 The following front interfaces are available on the SAU3 AUX 1 one auxiliary interface where the following interface types can be configured V ...

Страница 29: ...ion Figure 24 Block diagram for SAU3 3 4 2 1 AUX SAU3 provides two auxiliary interfaces for serial communication The interfaces can work as a converter to and from IP traffic and can be configured as terminal server or PPP The auxiliary interface AUX 2 can also work as a Transparent Service Channel TSC The following interface types can be configured V 11 synchronous or asynchronous 1 2 to 64 kbit ...

Страница 30: ...ndicated by LED s on the front of the unit 3 4 2 6 Power This block interfaces the Power bus and provides secondary voltages for the unit All plug in units have a standard power module providing electronic soft start and short circuit protection filter function low voltage protection DC DC converter and a pre charge function 3 5 E1 Interfaces This section describes the plug in units providing shor...

Страница 31: ...it incl washer For sites where the four E1 interfaces on the NPU3 are insufficient the LTU3 12 1 provides 12 additional E1 interfaces LTU 16 1 LTU 32 1 LTU3 12 1 3x 4xE1 E1 1A 1D E1 2A 2D E1 3A 3D E1 4A 4D ERICSSON LTU 16 1 Fault Power BR 4x 4xE1 8x 4xE1 Fault Power BR TR 8A 8D E1 DS1 LTU 32 1 TR 7A 7D E1 DS1 TR 6A 6D E1 DS1 TR 5A 6D E1 DS1 TR 4A 4D E1 DS1 TR 3A 3D E1 DS1 TR 3A 3D E1 DS1 TR 3A 3D ...

Страница 32: ...M bus by receiving and transmitting the traffic nxE1 3 5 3 2 2 Control 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 the PCI bus 3 5 3 2 3 SPI This block interfaces the SPI bus and handles equipment status Failure is indicated by LED s on the front of...

Страница 33: ...o other plug in units See Section 3 6 2 on page 30 At aggregation nodes the LTU 155 acts as an interface between the optical domain and the microwave domain by providing an effective optical northbound interface using one STM 1 connection instead of nxE1 interfaces In ring configurations two LTU 155s can be connected back to back to allow local add drop of up to 63xE1 For ring configuration see al...

Страница 34: ...e electrical interface G 703 mapping 21xE1 Note only one at a time The LTU 155 fits in all subrack types The STM 1 interface on LTU 155s can be equipment and line protected using MSP 1 1 see Section 3 10 3 on page 56 TX OPT RX RX TX EL ERICSSON LTU B 155 Caution Invisible Laser Radiation When Open Class 1 Laser Fault Power BR TX OPT RX RX TX EL ERICSSON LTU 155e o Caution Invisible Laser Radiation...

Страница 35: ...nterfaces the TDM bus by receiving and transmitting the traffic nxE1 and DCN channels nx64 kbit s 3 6 2 1 2 Control 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 the PCI bus The block holds a Device Processor DP running plug in unit specific software ...

Страница 36: ...rs 1 1 1 1 1 3 1 2 1 1 2 3 through 1 7 1 1 7 3 3 6 2 1 6 MS RS VC 4 This block maps the VC 12s to from one VC 4 adding path overhead The block provides the electrical and optical STM 1 line interfaces for external connection 3 6 2 1 7 SDH Equipment Clock This block handles timing and synchronization The LTU 155 utilizes the synchronization functions described in Section 3 11 on page 60 3 6 3 SXU3 ...

Страница 37: ...unctions of the SXU3 B based on the block diagram in Figure 30 on page 33 10049 SPI TDM TDM Bus PCI Bus SPI Bus Power Power Bus Secondary voltages High Speed SDH ADM Cross Connection PDH over SDH Ethernet over SDH Line Interface Control and Supervision 4xE1 Higs Speed Bus Figure 30 Block diagram for SXU3 B 33 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 38: ...up the Virtual Concatenation Groups VCG s One VCG is a multiple of VC 12s VC 3s or VC 4s and there is a maximum of 7 VCGs 3 6 3 1 5 PDH over SDH This block maps the 21xE1 to from VC 12s 3 6 3 1 6 SDH ADM Cross Connection This block terminates and structures 4xSTM 1 signals via radio The corresponding DCN channels are terminated The VC 12s VC 3s and VC 4s of the corresponding VCGs respectively the ...

Страница 39: ... 1 1 Ethernet over PDH The Ethernet traffic is transported between NEs in multiple E1s over a single hop or through a network Figure 31 on page 35 shows an example of how the different units can be used in a network 10051 Ethernet core network AMM 2p B NPU3 1 16xE1 100BASE T AMM 2p B NPU3 AMM 6p C D NPU3 B ETU3 AMM 6p C D NPU3 B ETU3 AMM 20p B ETU2 AMM 6p C D NPU3 B ETU3 AMM 2p B NPU3 B ETU3 1 48x...

Страница 40: ...3 Core network 1xSTM 1 1 4xSTM 1 100BASE T AMM 20p B AMM 6p C D NPU3 B SXU3 B AMM 2p B NPU3 B SXU3 B AMM 2p B NPU3 B SXU3 B AMM 6p C D NPU3 B SXU3 B OMS 846 860 870 Figure 32 Ethernet traffic over SDH in a MINI LINK TN R4 network The bandwidth of each Ethernet bridge connection is nxSTM 1 where n 4 for SXU3 B The ethernet traffic is switched from the NPU3 B over the high speed bus to the SXU3 B Th...

Страница 41: ...m a given ingress port to one or more egress ports Frame admittance It is possible to block or admit the following frame types at the network edge Q Tagged priority bits VID set in Q tag Priority tagged only priority bits set in Q tag Untagged no Q tag Other unrecognized frame types e g S tags are discarded at the network edge MAC address limiting per port It is possible to limit the MAC address t...

Страница 42: ...llowing performance counters for Ethernet traffic are available Number of discarded packets for example due to overflow or CRC 32 errors Number of sent received frames Number of sent received octets 3 7 4 Ethernet Interface Unit ETU The ETU3 provides two 10 100 1000BASE T interfaces and two 1000BASE TX SFP Interfaces The SFPs can be either electrical SFPe or optical SFPo see Section 6 3 on page 13...

Страница 43: ...SE T 1000BASE T X ETU2 10 100BASE T 10 100 1000BASE T 1 ERICSSON ETU2 Fault Power BR 10 100BASE T 10 100 1000BASE T 10 100 1000 Link Figure 33 ETU2 3 7 4 1 Functional Blocks This section describes the ETU2 and the ETU3 based on the block diagrams in Figure 34 on page 40 and Figure 35 on page 41 39 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 44: ...r Bus Secondary voltages Control and Supervision Inverse Multiplexers Ethernet 10 100 1000BASE T 10 100BASE T 10 100BASE T 10 100BASE T 10 100BASE T 10 100BASE T nxE1 nxE1 nxE1 nxE1 nxE1 nxE1 Figure 34 Block diagram for ETU2 40 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 45: ... 4 1 2 Inverse Multiplexers Each inverse multiplexer converts one Ethernet connection into nxE1 where n 48 transmitted to and received from the TDM block There is a total of 48 E1s for three IM groups 3 7 4 1 3 Ethernet This block provides the unit s external Ethernet interfaces For ETU2 each interface is linked to one inverse multiplexer and for ETU3 each interface is linked to the High Speed Bus...

Страница 46: ... main functions are to collect alarms control settings and tests The block communicates with the NPU over the PCI bus 3 7 4 1 6 SPI This block interfaces the SPI bus and handles equipment status Failure is indicated by LED s on the front of the unit 3 7 4 1 7 Power This block interfaces the Power bus and provides secondary voltages for the unit All plug in units have a standard power module provid...

Страница 47: ... 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 AAU Figure 36 VP VC cross connection Often the transmission network is used for both GSM and WCDMA traffic The GSM traffic is handled as ordinary TDM traffic routed in the backplane and transported transpa...

Страница 48: ...fitted in an AMM 6p C or D or AMM 20p B 8490 ERICSSON AAU Fault Power BR AAU Figure 38 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 G 804 mapping or combined into IMA groups Each G 804 link or IMA group corresponds to one internal ATM interface and the maximum number of ATM interfaces handled by the AAU is 16 44 12 221 02...

Страница 49: ...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 8 2 1 Functional Blocks This section describes the internal and external functions of the AAU based on the block diagram in Figure 39 on page 45 8491 SPI TDM TDM Bus PCI Bus SPI Bus Power Power Bus Secondary voltages IMA Control and...

Страница 50: ...ailable 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 is used to monitor the traffic flowing through a specific connection in order to ensure that it conforms to the configured traffic descriptor of the connection It fully meets the relevant require...

Страница 51: ...r the threshold Scheduling and Shaping Shaping is intended as a traffic limitation on the peak rate The ATM Cross connect provides 16 independent schedulers that are individually mapped to any of the 16 ATM interfaces The bandwidth assigned from the schedulers to each ATM interface is shaped at a value corresponding to the physical bandwidth of the ATM interface for example 2 Mbit s for a G 804 li...

Страница 52: ...lter function low voltage protection DC DC converter and a pre charge function 3 8 2 2 Fault Management The AAU supports the handling of F4 F5 O M functions for Fault Management FM according to ITU T I 610 The following FM indications are used The AAU is transparent to Continuity Check CC and Loopback LB cells for monitoring continuity and detection of ATM layer defects in real time 48 12 221 02 C...

Страница 53: ...the NE This means that an aggregation site can be realized using one subrack housing several Radio Terminals with all the cross connections done in the backplane Each plug in unit connects nxE1 to the backplane where the traffic is cross connected to another plug in unit The E1s are unstructured with independent timing One way of using this function at a large site is to cross connect traffic from...

Страница 54: ...work Manager The ServiceOn Network Manager SoNM provides a way to provision end to end E1 connections in a network All operations related to the E1 provisioning are done from a graphical representation of the network nodes and the E1 connections Color codes are used to visualize alarm status Detailed alarm info and status are shown in near real time In addition the Root Cause feature at the Networ...

Страница 55: ...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 41 on page 51 Physical link layer protection uses both signal failure and signal degradation as switching criteria By routing the protected traffic in parallel through different physical units equipment protection can also be achieved An example using two p...

Страница 56: ...stem provided that the passive link connection 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 10 2 Network layer protection 3 10 2 1 1 1 E1 SNCP 1 1 E1 Sub Network Connection Protection 1 1 E1 SNCP is a protection mechanism used for network protection on E1 level between two MINI LINK TN R4 NEs It is ...

Страница 57: ...LINK TN R4 NEs It is based on the simple principle that one VC4 VC3 or VC12 is transmitted on two separate VC4 VC3 or VC12 connections permanently bridged The switching is performed at the receiving end where the two connections are terminated It switches automatically between the two incoming VC4 VC3 or VC12s in order to use the better of the two The decision to switch is based on signal failure ...

Страница 58: ...urate information on the availability of network connections 3 10 2 3 Ring Protection 6628 Ring Tree Star Figure 44 Network topologies The 1 1 SNCP mechanism described in the previous section can be used to create protected ring structures in the microwave network In a ring topology all nodes are connected so that two nodes always have two paths between them A connection entering a ring at one poi...

Страница 59: ...Capacity is distributed from a common feeder node to the ring nodes where it is dropped off to star or tree structures as shown in Figure 45 on page 55 As an example consider the nodes A and E in Figure 45 on page 55 To protect the connection from A to E the two alternative connections from A to E must be defined as a 1 1 SNCP group at A and as a 1 1 SNCP group at E Similarly to protect the connec...

Страница 60: ...plane at a time as illustrated in Figure 46 on page 56 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 1 1 Switch 7468 BPI TDM Bus Figure 46 Two LTU 155e o plug in units in an MSP 1 1 configuration The switching is done automatically if the following is detected Signal Failure SF LOS LOF MS AIS or...

Страница 61: ...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 57 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 62: ...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 protection in the ADM In ELP configuration in order to save radio bandwidth only one of the two multiplex sections of the MSP working protection is sent over the air For this reason some limitations ...

Страница 63: ...able SFP see Section 6 3 on page 130 plus an external optical combiner splitter see Figure 49 on page 59 the STM 1 input output are protected while one MMU Tx laser is transmitting the other one must be switched off Laser Shut Down See also MMU2 F 155 in Section 4 2 on page 69 9358 Figure 49 Optical splitter combiner 59 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 64: ...used for Ethernet over PDH will have outgoing synch generated by the local oscillators MINI LINK TN ETSI can also be configured to Network Synchronized mode where the node maintains a SEC and distributes synchronization and synchronization quality level status on cross connected PDH channels ITU T G 813 Note that unstructured primary rate PDH channels are still passed transparently as in the Free ...

Страница 65: ...p are available for nomination It is also possible to use one of the E1 ports on the NPU1 B NPU3 and NPU3 B as an external 2048 kHz synchronization clock input interface The SEC will select and do automatic synchronization trail restoration based on the priority table and the status of the inputs In the event of failure of all synchronization source inputs the SEC will enter holdover mode using it...

Страница 66: ...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 When protected interfaces are nominated to be synchronization sources candidates they should have their Wait To Restore Time set longer then the Hold Off Time of the protected interface to avoid unne...

Страница 67: ...rious 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 restart is only available for the whole NE This will restart the control system and will not affect the traffic This is possible due to the separated control and traffic system All plug in units are equipped with temperature sens...

Страница 68: ... critical and shuts down the entire plug in unit out of service Access to inventory data like software and hardware product number serial number and version User defined asset identification is supported enabling tracking of hardware 64 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 69: ... 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 multiplexed demultiplexed to nxE1 for connection to the TDM bus SMU2 2xE0 2xE1 1xE2 2xE2 or 1xE3 1xE1 MINI LINK E 2xE1 to 17xE1 7469 MINI LINK TN TDM Bus Figure 53 MINI LINK E co siting 65 12 221 02 CSH 10...

Страница 70: ... the 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 capacity 9907 MMU2 RAU MMU2 RAU MMU2 MMU2 RAU RAU SMU2 SMU2 E3 E3 Figure 54 Transmission solution for unstructured E3 66 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 71: ...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 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER 1 5 G H z 1 5 G H z ALARM POWER ALIGNMENT RADIO CABLE Figure 55 An unprotected 1 0 Radio Terminal grayed An unprotected 1 0 Radio Terminal comprises On...

Страница 72: ...f 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 using different frequencies For more information on 1 1 protection see Section 4 6 on page 93 Radio Cables The radio cables between the Radio and Modem Units in the subracks are available in three diffe...

Страница 73: ...traffic capacity and modulation agile plug in unit used for the following modulation schemes and traffic capacities 16 QAM 22xE1 46xE1 128 QAM 35xE1 75xE1 MMU2 E 155 A high capacity SDH plug in unit used for the following modulation schemes and traffic capacities 16 QAM STM 1 1xE1 64 QAM STM 1 1xE1 128 QAM STM 1 1xE1 MMU2 F 155 A high capacity SDH plug in unit with XPIC support see Section 4 2 2 1...

Страница 74: ...io terminal For RAU compatibility see Table 1 on page 71 10063 MMU2 C MMU2 D MMU2 B MMU2 B 60V RAU Fault Power BR ERICSSON MMU2 C 60V RAU Fault Power BR ERICSSON MMU2 D 60V RAU Fault Power BR ERICSSON RAU Figure 56 MMU2 B C and D MMU2 E 155 and MMU2 F 155 have the same functionality regarding mechanics and interfaces but MMU2 F 155 also has support for XPIC For the STM 1 interface a Small Form Fac...

Страница 75: ...patibility between RAUs and MMUs MMU and modulation RAU1 RAU2 RAU1 N X Xu RAU2 N X Xu MMU2 B C QPSK X X MMU2 C C QPSK X X MMU2 C QAM X MMU2 D QAM X MMU2 E 155 QAM X MMU2 F 155 QAM X 4 2 2 Functional Block This section describes the internal and external functions of the MMU based on the block diagram in Figure 58 on page 72 Figure 59 on page 73 and Figure 60 on page 74 71 12 221 02 CSH 109 32 1 V1...

Страница 76: ...o Frame Demultiplexer SPI TDM Multiplexer Demultiplexer TDM Bus PCI Bus SPI Bus HCC HCC RCC RAU Power Power Bus Secondary voltages DCC Traffic DCC Traffic BPI Bus 1 1 BPI Bus 1 1 Control and Supervision Figure 58 Block diagram for MMU2 B and MMU2 C 72 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 77: ...ame Demultiplexer SPI TDM Multiplexer Demultiplexer TDM Bus PCI Bus SPI Bus HCC HCC RCC RAU Power Power Bus Secondary voltages DCC Traffic DCC Traffic BPI Bus 1 1 BPI Bus 1 1 Control and Supervision High speed bus Figure 59 Block diagram for MMU2 D 73 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 78: ...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 demultiplexing depending on the traffic capacity The demultiplexed traffic and DCC are transmitted to the TDM bus In a protected system the block interfaces the BPI bus see Section 4 6 2 on page 93 Note The TDM block...

Страница 79: ... 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 of control and supervision information between near end and far end MMUs Multiplexing The three different data types together with check bits and frame lock bits are sent in a composite data format de...

Страница 80: ...d 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 350 MHz transmitting IF signal 140 MHz receiving IF signal DC power supply Radio Communication Channel RCC signal as an Amplitude Shift Keying ASK signal In addition to the above the cable interface inc...

Страница 81: ...ured using parity bits These are used for BER detection and performance 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 or BER 10 3 AIS detection Elastic buffering and clock recovery Data alignment compensation and measurement to enable hitless switching Hit...

Страница 82: ...ble voltage for the RAU distributed in the radio cable 4 2 2 11 Cross Polarization Interference Canceller MMU2 F 155 is equipped with Cross Polarization Interference 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 using one dual polarized antenna The wa...

Страница 83: ...Radio Terminals An XPIC solution doubles the wireless link capacity and enables operators to reduce cost in terms of their frequency license fee 79 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 84: ...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 unit control circuit board and filter unit The RAU is independent of traffic capacity The operating frequency is determined by the RAU only and is pre set at factory and configured on site using MINI L...

Страница 85: ...ction 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 information about frequency sub band and output power version is necessary The letters have the following significance X indicates mechanical design 1 or 2 Y indicates MMU compatibility as follows blank for exa...

Страница 86: ...82and Figure 64 on page 83 Transmit IF Signal Processing DC DC Converter Secondary Voltages Cable Interface Branching Filter RCC Control and Supervision Processor Alarm and Control DC MMU Alignment Port Antenna 6623 Transmit RF Oscillator Power Amplifier Transmit IF Demodulator Filter and Amplifier RF Loop Low Noise Amplifier Received Signal Strength Indicator Receive RF Oscillator Down converter ...

Страница 87: ...gure 64 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 Shift Keying ASK modulated command and control signal with a nominal frequency of 6 5 MHz DC supply voltage to the RAU Similarly the outgoing signals from the RAU are multiplexed in the Cable Interface Rec...

Страница 88: ...es 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 implemented in the same way as the Transmit IF Oscillator 4 3 4 8 Up converter 2 The transmit IF signal is amplified and up converted to the selected radio transmit frequency 4 3 4 9 Power Amplifier The transmitter...

Страница 89: ...he 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 an Automatic Frequency Control AFC loop 4 3 4 16 Down converter 2 The signal is down converted a second time to the IF of 140 MHz 4 3 4 17 Received Signal Strength Indicator RSSI A portion of the 140 MHz ...

Страница 90: ...r activation 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 DC DC Converter provides a stable voltage for the RAU 86 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 91: ...stallation 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 diameter are normally fitted integrated with the Radio Unit RAU 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER 15 GHz 15 GHz RADIO CABLE ALIGNMENT ALARM POWER 845...

Страница 92: ...GH z ALAR M POW ER ALIGNMENT RADIO CABLE Figure 67 RAUs fitted to integrated power splitters The 0 3 m and 0 6 m Integrated dual polarized antennas is used with two RAU2s and works perfect in combination with XPIC see Section 4 2 2 11 on page 78 4 4 2 2 Separate Installation All antennas have a standardized waveguide interface and can be installed separately by using a flexible waveguide to connec...

Страница 93: ...threaded and unthreaded holes to provide adjustment of the antenna in azimuth and elevation The support can be clamped to poles with a diameter of 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 screws 6717 Figure 69 Mounting kit for the 0 2 m compact an...

Страница 94: ...r the 0 3 m and 0 6 m compact antennas The mounting kit for 0 3 m and 0 6 m compact antenna can be adjusted by 15 in elevation and 40 in azimuth Both elevation and azimuth have a mechanism for fine adjustment 90 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 95: ... dedicated sub channel 9427 Power Splitter Power Splitter Sector antenna Power Splitter Figure 71 Overview of MINI LINK TN PMP Functionality The system is scalable and offers configurations with two three or four terminals per sector Two types of mounting kits are available where the choice of mounting kit depends on the amount of terminals to be installed One kit supports configuration of up to f...

Страница 96: ...5 GH z ALAR M POW ER ALIGNMENT RADIO CABLE RADIO CABLE ALIGNMENT ALARM POWER RADIO CABLE ALIGNMENT ALARM POWER 9426 Figure 72 Mounting kits for installation of two left up to four right radio terminals 92 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 97: ...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 reduced In working standby mode both radio paths are active in parallel using different frequencies realizing frequency diversity Using two different frequencies improves availability because the radio...

Страница 98: ... 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 signals to the Radio Frame Multiplexer block in both MMUs which is a condition for being able to perform hitless switching in the receiving end Alarms generated in the RAU and MMU are monitored by the N...

Страница 99: ...t 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 Supervision block of the MMU and communicated in the RCC Alarms generated in the RAU and MMU are monitored by the NPU which based on the alarm severity commands the TDM and TA switches as appropriate The s...

Страница 100: ... on page 96 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 Frame Multiplexer Modulator Cable Interface TDM Multiplexer Demultiplexer MMU B Diversity Switch Switch Logic Control and Supervision Control and Supervision Figure 75 Radio Segment Protection and Rx ...

Страница 101: ...MU 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 are monitored by the NPU which based on the alarm severity commands the TDM switch as appropriate The switching principles are illustrated in Figure 75 on page 96 97 12 221 02 CSH 109 32 1 V1 Uen A 200...

Страница 102: ...rated dual polarized antennas or four separate antennas See Figure 76 on page 98 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 Figure 76 1 1 XPIC configuration The four modems MMU2 F 155 are housed in the AMM 6p C D or the AMM 20p B in four adjacent slots that share the same BPI 4 bus See Figure 77 on page 99 98 12 221 02 CSH 109 3...

Страница 103: ...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 cable shall connect modems in alternate slots 2 4 and 3 5 etc See Figure 78 on page 99 9968 PFU2 FAU2 NPU 7 6 5 4 3 2 MMU2 F 155 APU AMM 6p 1 1 XPIC 0 1 MMU2 F 155 MMU2 F 155 MMU2 F 155 Figure 78 XPIC cro...

Страница 104: ... or working standby see Figure 80 on page 101 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 155 MMU2 F 155 MMU2 F 155 MMU2 F 155 Figure 79 1 1 XPIC in Hot Standby 100 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 105: ...rization 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 orthogonal polarization switching criteria for H polarization are not satisfied the switching to the protection link from HA to HB is not initiated If the depolarization is such that the H polarization...

Страница 106: ...ion 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 The new active receiver both for H link and V link will be the quicker receiver to lock 4 7 Transmit Power Control The radio transmit power can be controlled in Remote Transmit Power Control RTPC or ...

Страница 107: ... 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 with the target value a deviation is calculated and sent to the near end terminal to be used as input for possible adjustment of the transmit power ATPC varies the transmit power between a selected max...

Страница 108: ...holds 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 Errored Seconds SES Background Block Error BBE Unavailable Seconds UAS and Elapsed Time In case of a protected system the block based performance data is evaluated at the protected interface The BER a...

Страница 109: ...control system will generally try to repair software faults by performing warm restarts on a given plug in unit or on the whole NE 5 1 1 Alarm Handling MINI LINK TN R4 uses SNMP traps to report alarms to ServiceOn Microwave or any 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 T...

Страница 110: ...3100 and X 733 compliant probable cause for example Loss Of Signal LOS Perceived severity X 733 compliant severity for example critical or warning Specific problem free text string detailing the probable cause The system can also be configured to send SNMP 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 alar...

Страница 111: ...s origin see Figure 82 on page 108 An AIS is sent to the line interface A Local Loop in combination with a BERT in another 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 supported on the MMU Rx Loop This loop is similar to the Connection Loop but the loop ...

Страница 112: ...tted is after being modulated mixed with the frequency of a local oscillator and looped back for demodulation on the receiving side RF Loop In the RAU a fraction of the RF signal transmitted is shifted in frequency and looped back to the receiving side 9971 MMU MMU RAU RAU Rx Loop IF Loop RF Loop Near end Far end Note For MMU2 E F also a Local Loop is available at the Far end MMU Figure 83 Radio T...

Страница 113: ...ms burglar alarms and low power indicator are easily implemented using these input ports The User Input ports can be configured to be normally open or normally closed User Output ports can be used to export summary alarms of the accumulated severity in the NE to other equipment s supervision system The User Output ports can be controlled by the operator or triggered by one or several alarm severit...

Страница 114: ...mance management according to ITU T recommendation G 826 The following performance counters are used for the E1 and STM 1 interfaces Errored Seconds ES Severely Errored Seconds SES Background Block Error BBE only structured interfaces Unavailable Seconds UAS Elapsed Time The performance counters above are available for both 15 minutes and 24 hours intervals The start time of a 24 hours interval is...

Страница 115: ...e selected interface As with loop tests bit error testing may be used for system verification or for fault location Plug in Unit BERT E1 6668 TDM Bus NE or External equipment Figure 84 BERT in combination with an external loop The BERT is started and stopped by the operator and the bit error rate as a function of the elapsed time is the test result The test can be started and stopped locally or re...

Страница 116: ...del USM 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 is used as hash algorithm for authentication For SNMP v1 v2c access the regular user name and password protection does not apply Instead a community based access protection is used As default a ...

Страница 117: ...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 as a standard event message to the management software For migration the error is reduced to a warning when introducing licensing and the configuration still allowed New SW versions will introduce the lock...

Страница 118: ...software is completed the NE will wait for a Commit command from the management system When Commit is received the software upgrade process is completed The previous software revision remains stored on the unit in case a rollback is required This may be the case if something goes wrong during the software upgrade or if no Commit is received within 15 minutes after the restart If plug in units with...

Страница 119: ...ing of the DCN traffic A number of different alternatives to connect and transport DCN traffic are supported This diversity of DCN interfaces provides the operator with a variety of options when deploying a DCN Figure 86 on page 115 illustrates the different options including ways of connecting to the equipment for DCN configuration 10085 Router 10 100BASE T USB PPP DCCR DCCM Structured Unstructur...

Страница 120: ... bandwidth is automatically established to DCCr 192 kbit s and DCCm 192 kbit s and DCCm is configurable to 384 kbit s and 576 kbit s SXU3 B supports the standard compliant DCCr and DCCm The bandwidth is fixed to DCCr 192 kbit s and DCCm 576 kbit s Between LTU 155 and SXU3 B only DCCr can currently be used due to DCCm compatibility issues This will be corrected in future release The PPP connection ...

Страница 121: ...ally in the NE The timeslots used for traffic is cross connected in normal manner through the NE 5 7 2 4 nx64 kbit s nx64 kbit s timeslots can be used for IP DCN as described in Section 5 7 2 3 on page 117 5 7 2 5 2xE0 A PPP E0 connection can be established to an external device from the SMU2 5 7 2 6 DCC Radio Terminal Each Radio Terminal provides a DCC of nx64 Kbits where 2 n 9 depending on traff...

Страница 122: ...ch radio hop For a large aggregation site this would imply a lot of addresses The planning of the IP addresses is simplified The amount of configuration is reduced because only one IP address is configured upon installation Improved performance and smaller routing tables since the unnumbered PPP connections are not distributed by OSPF 5 7 4 IP Router The IP router supports the following routing me...

Страница 123: ...BR Virtual links are supported which is useful when an area needs to be split in two parts Link summarization is supported which is used in the ABR to minimize the routing information distributed to the backbone and or other areas 119 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 124: ...nagement tools and interfaces 5 8 1 MINI LINK Craft MINI LINK Craft provides tools for on site installation configuration management fault management performance management and software upgrade It is also used to configure the traffic routing function protection and DCN MINI LINK Craft is used for local management that is the NE is accessed locally by connecting a PC to the NPU with a USB cable Th...

Страница 125: ...unctions such as FM CM AM PM and SM based on the recommendations from Open Systems Interconnect OSI model The CM functionality is either embedded or provided using dedicated Local Managers and Element Managers ServiceOn Microwave can also be used to mediate FM PM and Inventory data to other management systems 121 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 126: ...SoNM product that is used in order to manage Microwave Radio network elements at the network management layer The PDH Layer feature covers the functional areas of Configuration Fault Performance and Security Management SoNM can manage the possible network scenarios Only Microwave Network Elements Microwave Network Elements inter worked with SDH Optical Network Elements 5 8 4 ServiceOn Ethernet Ser...

Страница 127: ...IBs 5 8 6 Command Line Interfaces A CLI is provided for advanced IP router configuration and troubleshooting This interface is similar to Cisco s industry standard router configuration and is accessed from a Command Prompt window using telnet The CLI functions are described in the online Help and the MINI LINK TN Operation Manual Figure 90 CLI 123 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 128: ...Technical Description 124 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 129: ... 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 available ICF1 The ICF1 is used for AMM 20p B It provides connectors for E1 traffic D sub 120 or SMZ 75 redundant power supply of PFU1 and FAU1 User I O and fuses for FAU1 see Figure 91 on page 126 ICF2 The ICF2 is us...

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 91 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 8496 Figure 92 ICF2 120 126 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 131: ...IN 4A 4B 4C 4D 3A TRAFFIC E1 3B 3C 3D OUT E1 E1 E1 E1 8493 4xE1 Figure 93 ICF 16x2 75 8494 TRAFFIC E1 IN OUT A B C D E1 4xE1 Figure 94 ICF3 with one connection box and connection cable Sofix 127 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 132: ...tandard 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 Fault Operation Information EC Bus DC Out DC In PSU Fault Operation Information EC Bus DC Out DC In FAU3 48 V DC Out FAU1 48 V DC Out PFU1 PFU3 48 V DC Out PFU1 PFU3 24 V DC In PSU Fan alarm NPU1 B...

Страница 133: ...ut Air out 6724 Figure 96 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 gable on the left hand side of the sub rack 129 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 134: ...For ETU3 the Small Form Factor Pluggable SFP exists as electrical SFPe or optical SFPo transmitter receiver SFP GB LX ZX Optical 10054 SFP GB TX Electrical Figure 98 Electrical optical SFP 6 4 Optical splitter combiner An optical splitter or combiner splits or combines the incoming outgoing optical signal It is used together with an optical SFP to form an EEP solution see Section 3 10 5 on page 59...

Страница 135: ...hone when the ordinary AC power is down The DCN LAN Switch runs on either 24 or 48 V DC Up to two DCN LAN Switches fits in a standard 19 or metric rack 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 P4 P5 P6 P7 P8 9467 Figure 100 DCN LAN Switch ERICSSON PoE DLS P1 PWR PoE SEL HOLD TO CONFIRM P1 manual P2 4 manual P5 8 manual...

Страница 136: ...r radiation The FAU inside the AMM 2p B helps cooling the MPH The bottom of the MPH holds 7 cable bushings and two adapters for connection of the radio cables One traffic cable and one DC cable are always fed while the remaining cable bushings can be used for different cables The front of the MPH is easily opened to get access to the AMM 2p B and its PIUs The AMM 2p B is power supplied by 48 V DC ...

Страница 137: ... eyebolts are include for hoisting 10082 00 PFU 01 PFU FAU 02 03 04 05 06 07 08 MMU2 E 155 MMU2 E 155 ETU2 LTU 155e PFU3 B SXU3 B LTU3 12 1 NPU3 Figure 104 TMR 9302 The cabinet has two doors one on the front and one on the back Cooling of the equipment is done by a heat exchanger including four fans One internal air loop and one external air loop divides the outdoor air from the indoor air Two ind...

Страница 138: ...etect cooling system malfunction Furthermore a door sensor is mounted in the cabinet which can be used to generate an alarm when the lockable door is opened The TMR 9302 is power supplied by 48 V DC from an external DC supply source or an optional dedicated AC DC converter PSU The PSU converts 100 250 V AC to 48 V DC see Figure 103 on page 133 The maximum output power is 420 W The PSU fulfills Ove...

Страница 139: ...R 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 CRC Cyclic Redundancy Check DC Direct Current DCC Data Communication Channel DCCm Digital Communication Channel Multiplexer Section DCCr Digital Communication Channel Regenerator Section DCN Data Communication Network DDF Digital ...

Страница 140: ...TP File Transfer Protocol GFP Generic Framing Protocol GSM Global System for Mobile Communications HCC Hop Communication Channel Hop A radio link connection with a pair of communicating terminals HSDPA High Speed Data Packet Access I Q Inphase and Quadrature ICS Internet Connection Sharing ICF Interface Connection Field IEEE Institute of Electrical and Electronics Engineers IF Intermediate Frequen...

Страница 141: ...ective Housing MS Multiplexer Section MSP Multiplexer Section Protection NE Network Element Near end The selected terminal nrt VBR non real time Variable Bit Rate NPU Node Processor Unit NTP Network Time Protocol O M Operation and Maintenance OAM Operation Administration and Maintenance OSPF Open Shortest Path First PCI Peripheral Component Interconnect PDH Plesiochronous Digital Hierarchy PFU Pow...

Страница 142: ...twork Connection Protection 1 1 E1 SNCP is used to create a protected E1 interface from two unprotected E1 interfaces SNMP Simple Network Management Protocol SPI Serial Peripheral Interface STM 1 Synchronous Transport Module 1 155 Mbit s SXU SDH cross connect Unit TCP IP Transmission Control Protocol Internet Protocol TDM Time Division Multiplexing TIM Trace Identifier Mismatch TM Terminal Multipl...

Страница 143: ... VCI Virtual Channel Identifier VLAN Virtual Local Area Network VP Virtual Path VPC Virtual Path Connection VPI Virtual Path Identifier WCDMA Wideband Code Division Multiple Access XPIC Cross Polarization Interference Canceller 139 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 144: ...Technical Description 140 12 221 02 CSH 109 32 1 V1 Uen A 2008 03 14 ...

Страница 145: ...nnas 87 mounting kit 89 Area Border Router See ABR ASK 83 ATM 6 interfaces 45 ATM Aggregation Unit See AAU ATM Cross connect 46 ATPC 102 103 Automatic Transmit Power Control See ATPC B Basic node 4 9 BERT 111 Bit Error Ratio Tester See BERT Block diagram AAU 45 ETU2 40 ETU3 41 LTU 155 31 LTU 16 1 28 LTU 32 1 28 LTU3 12 1 28 MMU2 B 72 MMU2 C 72 MMU2 D 73 MMU2 E F 155 74 NPU1 B 20 NPU3 20 NPU3 B 21 ...

Страница 146: ... Equipment Protection See EEP EOW 22 EPD 47 Equipment and Line Protection See ELP Equipment handling 63 Equipment protection 51 95 96 Ethernet interface 117 traffic 35 Ethernet Interface Unit See ETU Ethernet Switch functionality Ethernet 37 ETU 5 38 ETU2 block diagram 40 ETU3 block diagram 41 F F4 F5 48 Fan Unit See FAU FAU 6 FAU1 17 FAU2 14 FAU3 128 FAU4 12 Fault management 105 AAU 45 FEC 75 77 ...

Страница 147: ... LTU 32 1 27 block diagram 28 LTU B 155 30 LTU3 12 1 27 block diagram 28 M Management 105 interfaces 120 tools 120 MDCR 45 MINI LINK Craft 120 MINI LINK E co siting 65 MMU 5 69 MMU2 B 69 block diagram 72 MMU2 C 69 block diagram 72 MMU2 D 69 block diagram 73 MMU2 E 155 69 70 MMU2 E F 155 block diagram 74 MMU2 F 155 69 70 Modem Unit See MMU Mounting Kit antennas 89 MPH 132 MPH for MINI LINK TN See M...

Страница 148: ...CC Radio segment protection 95 Radio Terminal 4 67 protected 1 1 68 unprotected 1 0 67 Radio Unit See RAU RAU 80 block diagram 82 external interfaces 81 types 81 RCC 76 Received Signal Strength Indicator See RSSI Remote Transmit Power Control See RTPC Removable Memory Module See RMM Revision information 2 RF loop 84 108 Ring protection 54 RMM 18 RSSI 85 RTPC 102 103 Rx equipment protection 96 Rx l...

Страница 149: ...60 System architecture 9 overview 3 T TDM bus 9 Time Division Multiplexing See TDM TMR 9302 133 Traffic SDH 29 Traffic routing 49 Transmit Power Control 102 Tx equipment protection 94 95 U UBR 45 Uni directional 52 Universal Serial Bus See USB Unnumbered interfaces 118 Unprotected 1 0 67 USB 19 117 User I O 19 109 V VBR 45 Virtual links 119 VP VC Cross connection 46 W Working standby 68 93 145 12 ...

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