NEC Ipasolink 400 Manuale utente

NEC IPASOLINK 400

INSTALLATION AND PROVISIONING

CONTENTS

INTRODUCTION ......................................................................................................................6

PRODUCT DESCRIPTION.....................................................................................................6

IPASOLINK 400........................................................................................................................7

COMPATIBLE OUTDOOR UNITS........................................................................................8

NHG .....................................................................................................................................8

NHG2 .....................................................................................................................................8

IHG .....................................................................................................................................9

BLOCK DIAGRAMS................................................................................................................9

AVAILABLE CONFIGURATIONS.......................................................................................11

UNPROTECTED HOP.......................................................................................................11

PROTECTED CONFIGURATIONS .................................................................................11

ETHERNET PROTECTION USING 2+0 OR XPIC 1+0..............................................................11

RADIO TRAFFIC AGGREGATION.............................................................................................11

CONFIGURATION DIAGRAMS .................................................................................................12

ASYMMETRICAL HOPS...........................................................................................................15

EXTERNAL CONNECTION SPEED AND RADIO PATH CAPACITY..........................15

IPASOLINK CAPACITY.............................................................................................................16

QOS AND OVERPROVISIONING.......................................................................................18

ADAPTIVE MODULATION...................................................................................................18

MAIN SPECIFICATIONS ......................................................................................................20

IDU CONFIGURATIONS.......................................................................................................22

PDH-INTERFACES............................................................................................................24

MANAGEMENT AND AUXILIARY INTERFACES ........................................................................24

INDOOR UNIT CONFIGURATIONS...................................................................................25

ORDERING CODES..............................................................................................................26

PREINSTALLED LICENSES ...............................................................................................26

SAFETY ISSUES....................................................................................................................26

OPEN WAVEGUIDE AND OPTICAL CONNECTORS ..................................................................26

AVOID THE FRONT OF THE ANTENNA....................................................................................26

RADIATION MONITORING DEVICES............................................................................27

SAFETY DISTANCE FOR THE PUBLIC EXPOSURE..................................................27

INDOOR UNIT INSTALLATION..........................................................................................28

VENTILATION.....................................................................................................................28

ENVIRONMENTAL REQUIREMENTS........................................................................................28

POWER CONNECTION............................................................................................................29

ASSEMBLING THE POWER CABLE..............................................................................29

ETHERNET CABLE CONNECTIONS.............................................................................30

PDH CONNECTIONS...............................................................................................................30

ODU INSTALLATION............................................................................................................30

6GHZ ODUWITH STANDARDWAVEGUIDE...............................................................31

SEPARATE INSTALLATION OF 7AND 13 GHZ DIRECT MOUNT ODU......................................32

DIRECT MOUNT INSTALLATION...................................................................................32

ODU CABLE INSTALLATION....................................................................................................34

CABLE CONNECTORS.....................................................................................................35

GROUNDING......................................................................................................................35

Grounding outside .................................................................................................................................... 35

Grounding in the shelter .......................................................................................................................... 36

Suitable grounding connectors............................................................................................................... 36

IDU AND CABLE LABELLING ...................................................................................................36

OVERVOLTAGE PROTECTION................................................................................................36

LOCAL MANAGEMENT.......................................................................................................37

MANAGEMENT TOOL.......................................................................................................37

RECOMMENDED BROWSER...................................................................................................37

LOCAL CONNECTION .............................................................................................................37

REMOTE LOGIN USING THE BROWSER..................................................................................38

LOGINWINDOW................................................................................................................38

MAIN PAGE –MENU AND CURRENT STATUS.........................................................................39

NAMING OF THE IDU AND MODEMS .......................................................................................39

BASIC SETTINGS..................................................................................................................39

PROVISIONING CLEAR....................................................................................................40

NETWORK MANAGEMENT (NMS) SETTINGS............................................................47

MODEM SETTINGS...........................................................................................................51

SYNCHRONIZATION SETTING ...............................................................................................52

DATE AND TIME SETTING.......................................................................................................55

NETWORK MANAGEMENT SECURITY SETTINGS ...................................................................56

ANTENNA ALIGNMENT.......................................................................................................61

MANAGEMENT NETWORK ................................................................................................63

DCN OVER PDH/SDH..............................................................................................................65

MANAGEMENT USING METRO ETHERNET VPLS SERVICE..................................65

PROVISIONING PDH............................................................................................................66

ETHERNET SETTINGS ........................................................................................................69

VLAN SETTINGS .....................................................................................................................70

BRIDGE MODES (802.1Q AND 802.1AD)..............................................................................72

SAMPLE VLAN SETTINGS.......................................................................................................73

QOS SETTINGS.....................................................................................................................76

TRAFFIC CLASSIFICATION PRINCIPLES....................................................................76

SAMPLE QOS POLICY......................................................................................................79

QOS SETTINGS –CLASSIFY AND INGRESS POLICING..........................................80

PORT QOS SETTINGS.............................................................................................................82

QOS SETTINGS SUMMARY.....................................................................................................84

COPYING SETTINGS FROM ONE IDU TO ANOTHER..................................................85

PRECONFIGURATION FILES.............................................................................................90

KNOWN PROBLEMS............................................................................................................91

APPENDIX A. RECEIVER THRESHOLD DATA..............................................................92

APPENDIX B. MC-A4/16E1-A MDR68-CONNECTOR PIN LAYOUT..........................95

APPENDIX C. MC-A4 D-SUB-44 CONNECTOR PIN LAYOUT...................................96

APPENDIX D. QUICK INSTALLATION GUIDE/CHECK LIST ......................................97

Version 2.4 2012-09-20

INTRODUCTION

This document describes the installation and provisioning of NEC iPasolink 400 microwave transmission

equipment. The information is based on the IDU firmware version 3.00.37. Additional information is

available in the manual iPasolink 400 Installation, Operation and Maintenance (NWD-115474-05E).

iPasolink 200 and iPasolink 1000 are very similar; however, there are some differences due to hardware

configurations. Reference is made to the appropriate equipment manuals.

Appendix D contains a quick provisioning guide. The quick guide is based on the configuration files that

have to be copied to the equipment before using the quick setup. The configuration files have to be

customised for each customer’s basic HW configuration. Rebooting of the equipment with traffic

interruption will take place when the configuration file is copied to the equipment.

PRODUCT DESCRIPTION

The microwave transmission family (iPasolink 100/200, 400 and 1000) enables full duplex wireless

transmission between two modems at a rate of over 400 Mbit/s per direction. With XPIC and radio channel

aggregation, over 800 Mbit/s per radio channel can be achived.

The interfaces are based on the Ethernet, PDH and SDH standards.

Frequency division duplex is used. A pair of channels separated by certain duplex spacing is required.

iPasolink uses licensed frequency bands. The frequency administration provides interference-free channels

to different operators based on frequency planning: transmitter powers and antenna sizes etc are

specified. Alternatively, in some countries, the operator may be given a block allocation of spectrum and

the operator is then responsible for the proper frequency planning inside the block. In any case, the correct

operation is only possible with proper frequency planning so that adequate signal-to-interference margin is

available. Moreover, the microwave hop has to be planned according to current ITU-R methods in order to

ensure sufficient margin against fading.

NEC iPasolink uses the traditional split mount installation method: indoor unit (IDU), coaxial cable, outdoor

unit (ODU) and antenna. Different products of the iPasolink 100/200/400/1000 family may interface over

the air with certain limitations regarding maximum modulation. Fully outdoor versions (iPasolink AX, SX and

EX) are also available but are not over-the-air compatible with iPasolink 100, 200, 400 or 1000.

The indoor unit contains the baseband interfaces (nxE1, STM-1, FE or GbE) as well as modems, a power

supply (or supplies) and a control unit with NMS interfaces. The interconnecting cable uses intermediate

frequencies below 400 MHz for the data and control signals. It feeds the power to the outdoor unit at -48

V. The frequency bands available cover the standard bands 6 to 42 GHz. Microwave signals do not

penetrate buildings, vegetation or terrain nor bend around obstacles. Therefore the antenna has to be

placed on top of a tall building or on a tall tower or mast in order to provide free line-of-sight connection to

the opposite end.

IPASOLINK 400

This guide is based on the middle-sized member of the family, the iPasolink 400. It may contain up to four

(4) modems. Each modem can provide Ethernet L2 capacity 10 to 400 Mbit/s or PDH/SDH capacity up to

152 x E1 or 2 x STM-1 or various combinations. The actual capacity depends on the available channel width

and available signal to noise/interference ratio and the fade margin required to fulfil the availability targets.

In the most basic configuration only one of the four slots contains a modem. The main card has always

FE/GbE and E1 interfaces. The other slots may contain additional GbE, SDH or E1 interfaces or modems. In

addition, TDM over packet (PWE), Synchronous Ethernet etc. options are available.

The highest capacities (400 Mbit/s) require access to a frequency band with 55 to 60 MHz channel spacing,

typically such channels are available in the upper 6 GHz, 18 GHz, 32 GHz or 38 GHz bands. On such bands

where the maximum spacing is only 27.5 or 28 MHz, the maximum capacity per modem is limited to about

200 Mbit/s. If necessary, two modems can share the same channel by using orthogonal polarizations and

XPIC (cross-polarization interference canceller). In such a setup the maximum combined capacity is about

400 Mbit/s (27.5 or 28 MHz channels) or about 800 Mbit/s (55 or 56 MHz channels).

The element management connection is based on Ethernet/IP transmission. All elements should be

connected to an EMS (PNMSj or MS5000). Within each iPasolink cluster the management traffic is carried

internally and separated from the customer traffic. A dedicated gateway connection (NMS port) to the

management data communication network (DCN) is typically used at the “root” element of the cluster.

Another solution is to use a traffic interface at the root element (in-band connection to root element).

Figure 1. iPasolink 400 indoor unit (IDU).

In the unit in Fig. 1 two modems (left) and a GbE interface card (right) have been installed. The unused slot

is covered by a blank cover. In the lower part are (from the left): the main card, a power supply, an unused

power supply slot and the fan unit.

COMPATIBLE OUTDOOR UNITS

Figure 2. Compatible outdoor units.

Indoor units: IHG is the latest version, silver coloured. NHG2 is white on the higher bands and beige on the

lowers bands whereas the NHG and the 6 to 11 GHz NGH2 look identical.

Any two IDUs belonging to the iPasolink 100/200/400/1000 family can be connected over the air. Note that

iPasolink IDU cannot interface to a previous generation (e.g. PASOLINK NEO) IDU. However, older

generation ODUs can be reused with iPasolink IDUs. There are certain limitations presented below.

NHG

NHG does not support 256QAM or higher modulations; only 128QAM and lower modulations formats are

guaranteed to work properly. When used with iPasolink IDU the FW version of the NHG ODU has to be 3.50

or later. This upgraded ODU will not work with a Pasolink NEO IDU any more - unless FW is downgraded

back to 3.50.

NHG2

NHG2 FW 4.06 works only with an iPasolink IDU. Earlier FW versions than 4.06 work only with Pasolink NEO

IDU. The recommended NHG2 FW version is 5.08 or later, which are compatible with both Pasolink NEO

and iPasolink indoor units. NHG2 upgrade to level 5.08 from lower level than 4.90.0 is a two-step upgrade:

to level 4.90.0 first and then to level 5.08 or later.

IHG

IHG FW version should be 5.08 or later. IHG will then work with iPasolink and PASOLINK NEO.

BLOCK DIAGRAMS

The block diagram of iPasolink 400 Indoor Unit (IDU) is presented in Figure 3. The Outdoor Unit (ODU) is

described in Figure 4.

The IDU main card has a separate TDM switch and a packet network L2 switch. It supports natively both

circuit-switched TDM as well as packet-switched Ethernet transport modes. In addition the equipment

supports the ”TDM-over-Ethernet” mode when equipped with the PWE option.

The modulator part of the modem generates an intermediate frequency signal. It is modulated by the

digital baseband signals and sent up to the ODU. The demodulator part demodulates the intermediate

frequency signal coming down from the ODU.

The demodulator includes an adaptive equalizer which repairs the linear distortions (poor amplitude and

phase response of the channel) caused by multipath fading. It also includes a FEC (Forward Error Correction

code) which is able to correct bit errors even very close to the threshold receive level. The system is almost

error-free until very close to the threshold and the transition to outage is within a couple of dB.

It is possible to equip the iPasolink 400 and 1000 IDUs with two redundant power supplies. Interruption of

one -48V supply voltage or a fault in one power supply unit will not cause any traffic interruption. Note:

iPasolink 100/200 has two independent connections to external -48V voltage but does not contain a

redundant power supply unit.

Figure 3. iPasolink 400 IDU, block diagram.

Figure 4. IHG ODU, block diagram.

The Outdoor Unit (ODU) generates the final microwave signal using the IF signal from the IDU by

upconverting it one or two times (MIX). The output of the mixer is band-pass filtered (BPF) in order to

remove the unwanted mixing products and then power amplified (PA). In the receive direction there is a

Low Noise Amplifier (LNA) and a mixer/filter which generates the receive direction IF signal. The local

oscillator (LO) frequencies are synthesized and controlled by the Control unit (CTRL). Transmitter output

power is fine-controlled automatically according to the modulation used and optionally based on the

remote end received power (Automatic Transmit Power Control, ATPC).

Both the modem in the IDU and the ODU contain a duplexer (DUP, MPX) which combines the different

directions of transmission to the same cable connector. The ODU power supply uses the DC voltage (-48V)

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