GE MDS DS-5800-2 User Manual

Microwave Data Systems

MDS FIVE Series Digital Radio Transceiver

User Reference and Installation Guide

Document Number: 05-4498A01, Rev. G

Date: 13 July 2006

Microwave Data Systems Inc. that is provided by Microwave Data Systems

exclusively for evaluating the purchase of Microwave Data Systems Inc. technology and is protected by copyright and trade secret laws.

No part of this document may be disclosed, reproduced, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express writt en permission of Microwave Data Systems Inc.

For permissions, contact Micro wav e Data Systems Inc. Marketing Group at 1-585-241-5510 or 1-585242-8369 (FAX).

Notice of Disclaimer

The information and specifications provided in this document are subject to change without notice. Microwave Data Systems Inc. reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.

The Warranty(s) that accompany Microwave Data Systems Inc., products are set forth in the sales agreement/contract between Microwave Data Systems Inc. and its customer. Please consult the sales agreement for the terms and conditions of the Warranty(s) proved by Microwave Data Systems Inc. To obtain a copy of the Warranty(s), contact your Microwave Data Systems Inc. Sales Representative at 1-585-241-5510 or 1-585-242-8369 (FAX).

The information provided in this Microwave Data Systems Inc., document is provided “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Some jurisdictions do not allow the exclusion of implied warranties, so the above exclusion may not apply to you.

In no event shall Microwave Data Systems Inc. be liable for any damages whatsoever – including special, indirect, consequential or incidental damages or damages for loss of profits, revenue, use, or data whether brought in contract or tort, arising out of or connected with any Microwave Data Systems Inc., document or the use, reliance upon or performance of any material contained in or accessed from this Microwave Data Systems Inc. document. Microwave Data Systems’s license agreement may be provided upon request. Additional Terms and Conditions will be finalized upon negotiation or a purchase.

The above information shall not be constructed to imply any additional warranties for Microwave Data Systems Inc. equipment including, but not limited to, warranties of merchantability or fitness for an intended use.

Trademark Information

Software Defined Indoor Unit

(SDIDUTM) is a product and trademark of CarrierComm Inc. JavaTM is a trademark of Sun Microsystems Inc. Windows® is a registered trademark of Microsoft Corporation

All other brand or product names are trademarks or registered trademarks of their respective companies or organizations.

Part Number: 05-4498A01

Table of Contents

1 SAFETY PRECAUTIONS......................................................................................................................1-1

2 SYSTEM DESCRIPTION.......................................................................................................................2-1

2.1 About This Manual............................................................................................................................2-1

2.2 Introduction.......................................................................................................................................2-1

2.3 System Features...............................................................................................................................2-4

2.4 Physical Description ........................................................................................................................2-5

2.4.1 Model Types................................................................................................................................2-5

2.4.2 Options ........................................................................................................................................2-6

2.4.3 Front Panel Indicators .................................................................................................................2-7

2.4.4 Front Panel Connections.............................................................................................................2-8

2.5 System Description........................................................................................................................2-11

2.6 Consecutive Point Architecture....................................................................................................2-14

2.7 2 + 0 (East-West) Configuration....................................................................................................2-16

2.8 Spanning Tree Protocol (STP).......................................................................................................2-17

2.9 1+1 Protection.................................................................................................................................2-17

2.9.1 Protected Non-Diversity (Hot Standby).....................................................................................2-18

2.9.2 Protected Diversity ....................................................................................................................2-18

2.10 1 + 1 Multi-hop Repeater Configuration.......................................................................................2-19

2.11 Data Interfaces................................................................................................................................2-21

2.12 Crosspoint Switch..........................................................................................................................2-21

2.13 Power Management........................................................................................................................2-22

2.14 MDS FIVE Series Software and Network Management...............................................................2-23

2.14.1 IP Address.................................................................................................................................2-24

2.14.2 Network......................................................................................................................................2-24

2.14.3 NMS Network Operational Principles........................................................................................2-24

2.14.4 Third Party Network Management Software Support................................................................2-25

2.15 System Loopbacks.........................................................................................................................2-25

3 INSTALLATION.....................................................................................................................................3-1

3.1 Unpacking..........................................................................................................................................3-1

3.2 Notices...............................................................................................................................................3-2

3.3 Required Tools..................................................................................................................................3-2

3.3.1 SDIDUTM Tools............................................................................................................................3-2

3.3.2 ODU Tools...................................................................................................................................3-2

3.4 PRE-INSTALLATION NOTES ...........................................................................................................3-3

3.5 Overview of Installation and Testing Process...............................................................................3-3

3.6 Site Evaluation..................................................................................................................................3-5

3.6.1 Preparing for a Site Evaluation....................................................................................................3-6

3.6.2 Site Evaluation Process...............................................................................................................3-7

3.6.3 Critical System Calculations......................................................................................................3-12

3.6.4 Frequency Plan Determination..................................................................................................3-13

3.6.5 Antenna Planning......................................................................................................................3-15

3.6.6 ODU Transmit Power Setup......................................................................................................3-15

3.6.7 Documenting a Site Evaluation.................................................................................................3-18

3.7 Installation of the MDS FIVE Series..............................................................................................3-21

3.7.1 Installing the MDS FIVE Series Software Defined IDUTM..........................................................3-21

3.7.2 Installing the MDS FIVE Series ODU........................................................................................3-22

3.7.3 Routing the ODU/ SDIDUTM Interconnect Cable.......................................................................3-24

3.8 Quick Start Guide ...........................................................................................................................3-26

3.8.1 Materials Required ....................................................................................................................3-26

3.8.2 Grounding the ODU...................................................................................................................3-26

3.8.3 Grounding the SDIDUTM............................................................................................................3-28

3.8.4 Connecting the SDIDUTM to the PC and Power Source............................................................3-28

3.8.5 SDIDUTM Configuration..............................................................................................................3-29

3.8.6 ODU Antenna Alignment...........................................................................................................3-31

3.8.7 Quick Start Settings...................................................................................................................3-32

3.9 SDIDU™ Service .............................................................................................................................3-33

3.9.1 Removing a Module...................................................................................................................3-33

3.9.2 Installing a Module.....................................................................................................................3-34

3.10 Documenting MDS FIVE Series Configuration............................................................................3-35

4 SUMMARY SPECIFICATION................................................................................................................4-1

5 FRONT PANEL CONNECTORS...........................................................................................................5-1

5.1 DC Input (Power) Connector............................................................................................................5-1

5.2 Ethernet 100BaseTX Payload Connector 1-2.................................................................................5-1

5.3 SONET Payload Connector..............................................................................................................5-2

5.4 STM-1 Payload Connector...............................................................................................................5-2

5.5 DS-3/E-3/STS-1 Payload Connector................................................................................................5-2

5.6 NMS 10/100BaseTX Connector 1-2.................................................................................................5-3

5.7 Alarm/Serial Port Connector............................................................................................................5-3

5.8 ODU Connector.................................................................................................................................5-4

5.9 T1/E1 - Channels 1-2 Connector .....................................................................................................5-4

5.10 T1/E1 - Channels 3-16 Connector ...................................................................................................5-5

5.11 USB ....................................................................................................................................................5-7

5.12 Voice Order Wire...............................................................................................................................5-7

5.13 Data Order Wire ................................................................................................................................5-8

5.13.1 RS422..........................................................................................................................................5-8

5.13.2 RS-232.........................................................................................................................................5-8

6 APPENDIX.............................................................................................................................................6-1

6.1 Alarm Descriptions...........................................................................................................................6-1

6.2 Abbreviations & Acronyms............................................................................................................6-16

1 Safety Precautions

PLEASE READ THESE SAFETY PRECAUTIONS!

RF Energy Health Hazard

The radio equipment described in this guide uses radio frequency transmitters. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard.

Do not allow people to come in close proximity to the front of the antenna while the transmitter is operating. The antenna will be professional installed on fixed-mounted outdoor permanent structures to provide separation from any other antenna and all persons as detailed on page

1-3.

Protection from Lightning

Article 810 of the US National Electric Department of Energy Handbook 1996 specifies that radio and television lead-in cables must have adequate surge protection at or near the point of entry to the building. The code specifies that any shielded cable from an external antenna must have the shield directly connected to a 10 AWG wire that connects to the building ground electrode.

Warning – This is a Class A product

Warning – This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Warning – Turn off all power before servicing

Warning – Turn off all power before servicing.

Safety Requirements

Safety requirements require a switch be employed between the SDIDU™ external power supply and the SDIDU™ power supplies.

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Proper Disposal

The manufacture of the equipment described herein

has required the extraction and use of natural resources. Improper disposal may contaminate the environment and prese nt a health risk due to the release of hazardous substances contained within. To avoid dissemination of these substances into our environment, and to lessen the demand on natural resources, we encourage you to use the appropriate recycling systems for disposal. These systems will reuse or recycle most of the materials found in this equipment in a sound way. Please contact Microwave Data Systems or your supplier for more information on the proper disposal of this equipment.

FCC Notice, USA

Microwave Data Systems Digital Radios comply with Part 15 of the FCC rules. The radios are specifically designed to be used under Part 15, Section 15.247 of the FCC rules and regulations. Operation is subject to following conditions:

• The device to utilize a fix

• The de

vice to be installed by qualified installation/deployment personnel. When the device is operating, a minimum separation must exist between the device and persons as shown in the table below. The following method was used to calculate the RF safety distance:

which is solved for the minimum separation distance

ed mount antenna, for use on a permanent outdoor structure.

= PG/4πr

MPE

= (PG/4πS

min

= EIRP/4πr

min

1/2

)

= (EIRP/4πS

MPE

min

1/2

)

MPE

where P = power input to the antenna (mW), EIRP = Equivalent (effective) isotropic radiated power, S = maximum permissible exposure (mW/cm antenna relative to an isotropic radiator, and r the center of radiation (cm). The resulting separation distances are dependent on frequency band.

Frequency Band Minimum Distance (cm)

UNII Band (nominal frequency = 5.25 GHz) 9 ISM Band (nominal frequency = 5.725 GHz) 371

• The de

vice installers and operators should be aware of the transmitter operating conditions, specified in the installation manual and other associated user documentation, as well as the antenna co-location requirements of Part 1.1307 (b) (3), of FCC rules, pertaining to RF exposure.

• The device

• The de

may not cause harmful interference.

vice must accept interference received, including interference that may cause

undesired operation.

), G = numeric gain of the

is the minimum separation distance to

min

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The device is intended to be used only when installed in accordance with instructions outlined in this manual. Failure to comply with these instructions may void the user's authority to operate this device and/or the manufacturer's warranty. Furthermore, any unauthorized modification or changes to this device without the express approval of Microwave Data Systems may also void the user's authority to operate this device.

FCC Part 15 Notice

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area may cause harmful interference, in which case the user will be required to correct the interference at his expense. Any external data or audio connection to this equipment must use shielded cables.

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2 System Description

2.1 About This Manual

This manual is written for those who are involved in the “hands-on” installation of the MDS FIVE Series Digital Transceiver, such as installation technicians, site evaluators, project managers, and network engineers. It assumes the reader has a basic understanding of how to install hardware, use Windows® based software, and operate test equipment.

The MDS FIVE Series includes a Software Defined Indoor Unit (ODU). The SDIDU

is a product and trademark of CarrierComm.

(SDIDUTM) and outdoor unit

2.2 Introduction

The Microwave Data Systems family of digital radios provides high capacity transmission, flexibility, features, and convenience for wireless digital communications networks. The Microwave Data Systems digital point-to-point radios represent a new microwave architecture that is designed to address universal applications for both PDH and SDH platforms. This advanced technology platform is designed to provide the flexibility to customers for their current and future network needs.

The Microwave Data Systems radio family is based upon a common platform to support a wide range of network interfaces and configurations. It supports links for 16 x E1/T1, 100BaseTX Ethernet, and DS-3/E-3/STS-1 (optional, consult factory for availability). The radio family is spectrum and data rate scalable, enabling service providers or organizations to trade-off system gain with spectral efficiency and channel availability for optimal network connectivity. The Microwave Data Systems digital radio family enables network operators (mobile and private), government and access service provides to offer a portfolio of secure, scalable wireless applications for data, video, and Voice over IP (VoIP).

The MDS FIVE Series digital radio family operates in the Industrial, Scientific, and Medical (ISM) band of 5.725 to 5.850 GHz, which is generically referred to as 5.8 GHz, and the Unlicensed National Information Infrastructure (U-NII) band of 5.25 to 5.35 GHz, which is generically referred to as 5.3 GHz. The MDS FIVE Series supports three types of user data payload connectivity:

• 100Base-TX intelligent bridging between two locations without the delay and expense of installing cable or traditional microwave.

• Scalable Ethernet capability of 25 and 50 Mbps is included. These scalable radios provide LAN connectivity and offer performance trade-offs between operational bandwidths, data rates, and distance.

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• 16E1 or T1 for cellular backhaul, enterprise voice applications and voice network redundancy

For customers such as cellular carriers requiring backhaul and backbone extension as well

as service providers requiring network redundancy, new Points of Presence (POPs), and last mile access, the MDS FIVE Series radio is a cost effective alternative to leased lines with carrier-class quality of performance. The MDS FIVE Series is a cost effective solution to meet the growing demand for enterprise Local Area Network (LAN) connectivity between buildings and campuses as well as service providers requiring reliable products for infrastructure expansion, extending Metropolitan Area Network (MAN) fiber access, and network redundancy.

The MDS FIVE Series includes integrated Network Management functionality and design features enabling simple commissioning when the radio network is initially set up in the field at the customer’s premises. Furthermore, a highlight of MDS radio products is scalability and the capability to support a ring-type architecture. This ring or consecutive point radio architecture is self-healing in the event of an outage in the link and automatically re-routes data traffic, thereby ensuring that service to the end user is not interrupted.

The MDS FIVE Series is composed of a Software Defined Indoor Unit

(SDIDUTM) and Outdoor Unit (ODU). It supports 1+0 and 1+1 protection and ring architectures in a single 1 RU chassis. The modem and power supply functions are supported using easily replaceable plug-in modules. An additional feature of the SDIDU

is provision for a second plug-in modem/IF module to

provide repeater or east/west network configurations. The overall architecture consists of a single 1RU rack mount Software Defined Indoor Unit

SDIDU

(

) with a cable connecting to an Outdoor Unit (ODU) with an external antenna.

Core Access

Network

Outdoor

Outdoor Unit

Unit

Outdoor

Unit

Outdoor Unit

Indoor Unit

Outdoor Unit

Outdoor

Unit

Indoor Unit

Figure 2-1. MDS FIVE Series SDIDUTM /ODU Architecture

Table 2-1 lists key features that MDS FIVE Series technology offers to those involved in the design, deployment and support of broadband fixed wireless networks.

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Table 2-1 Key Benefits and Advantages of MDS FIVE Series Radios

Benefits Advantages to Providers/Customers Reference

Wireless license-exempt system

ISM bands do not require expensive license band fees or incur licensing delays.

Wireless connectivity supplements existing cable (Ethernet).

Easy to install units

Straightforward modular system enables fast deployment and activation.

Carrier-class reliability.

Complete support of payload capacity with additional wayside channels

Aggregate capacity beyond basic payload (34 Mbps or 50 Mbps or 100 Mbps).

Scalable and spectrally efficient system. Separate networks for radio

overhead/management and user payload.

Fast return on investment. Lower total cost of total ownership. Media diversity avoids single points of

failure.

Fast return on investment. No monthly leased line fees.

Increases available bandwidth of network. Allows customer full use of revenue-

generating payload channel. Up to 16 T1/E1 wayside channels supports

extension of PBX connectivity between buildings without additional leased-line costs.

2.2 –2.4

3.5

2.2– 0

Lowers total cost of ownership.

Ring Architecture

Supports a ring (consecutive point) configuration, thus creating a self-healing redundancy that is more reliable than traditional point-to-point networks.

In the event of an outage, traffic is automatically rerouted via another part of the ring without service interruption.

Ring/consecutive point networks can overcome line-of-sight issues and reach more buildings than other traditional wireless networks.

Networks can be expanded by adding more MDS FIVE Series without interruption of service.

units or more rings

Enables network scalability. Increases deployment scenarios for initial

deployment as well as network expansion with reduced line-of-sight issues.

Increases network reliability due to selfhealing redundancy of the network.

Minimizes total cost of ownership and maintenance of the network.

Allows for mass deployment.

2.6,2.7,2.10

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User Reference and Installation Guide 2-4

Benefits Advantages to Providers/Customers Reference

A separate management channel allows for a dedicated maintenance ring with connections to each MDS FIVE Series Digital Radio on the ring.

Adaptive Power Control

Automatically adjusts transmit power in discrete increments in response to RF interference.

Comprehensive Link/Network Management Software

A graphical user interface offers security, configuration, fault, and performance management via standard craft interfaces.

Suite of SNMP-compatible network management tools that provide robust local and remote management capabilities.

Enables dense deployment. Simplifies deployment and network

management.

Simplifies management of radio network and minimizes resources as entire network can be centrally managed out of any location.

Simplifies troubleshooting of single radios, links, or entire networks.

Simplifies network upgrades with remote software upgrades.

Allows for mass deployment.

2.3 System Features

2.12

2.14



Selectable Rates and Interfaces

o Up to 16 x E1/T1 (wayside channels)

100BaseTX/Ethernet: Scalable 25-100 Mbps DS-3/E-3/STS-1 (option; consult factory for availability)

 Support for multiple configurations

o 1+0, 1+1 protection/diversity o Hot Standby o East/West Repeater (2 + 0)



Selectable Spectral Efficiency of 0.8 to 6.25 bits/Hz (including FEC and spectral shaping effects)

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 QPSK, 16 – 64 QAM Modulation



Powerful Trellis Coded Modulation concatenated with Reed-Solomon Error Correction



Built-in Adaptive Equalizer

 Support of Voice Orderwire Channels



Peak output power at antenna port

30 dBm at 5.8 GHz

12 dBm at 5.3 GHz

Receive Sensitivity: -84 dBm to -72 dBm (depending on data rate/modulation/FEC/ODU)



 Adaptive Power Control



Built-in Network Management System (NMS)

 Consecutive Point ring architecture



Built-in performance statistics

Built-in Bit Error Rate (BER) performance monitoring

Data encryption of all payload data and T1/E1 wayside channels for MDS FIVE Series-



100 and MDS FIVE Series-50 Ethernet models (Consult factory for availability)

2.4 Physical Description

The following section details the physical features of the MDS FIVE Series digital radios

• Model types

• Front panel indicators

• Front panel connections

2.4.1 Model Types

Table 2-2 lists the MDS FIVE Series digital radios according to model number and associated capabilities of throughput, data interface, and wayside channel. numbers.

Table 2-3 lists the ODU model

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User Reference and Installation Guide 2-6

Table 2-2 MDS FIVE Series SDIDU™ Model Type

Table 2-3 MDS FIVE Series ODU Model Types

PRODUCT NAME MODEL NUMBER ANTENNA

MDS FIVE Series 5.8 ODU-I ODU5800MIP

MDS FIVE Series 5.8 ODU-E ODU5800MEP

MDS FIVE Series 5.3 ODU-I ODU5300MIP

MDS FIVE Series 5.3 ODU-E ODU5300MEP

2.4.2 Options

The following items are also available:

• AC/DC power supply

• Data Encryption

• Upgrade 50Mbps Ethernet systems to 100Mbps capability

• OC-3/STM-1 Mini-IO Module

Please consult the factory for more information.

Integrated antenna

External antenna required

Integrated antenna

External antenna required

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2.4.3 Front Panel Indicators

All models of the MDS FIVE Series support a variety of front panel configurations that are dependent on the network interface and capacity configurations.

Figure 2-2 provides an example of the MDS FIVE Series 1+0 configuration and the associated LEDs displayed on the

SDIDU

front panel. The controller, standard I/O, and each modem card

have a status LED.

Figure 2-2. MDS FIVE Series LEDs: SDIDUTM Front Panel Configuration for MDS FIVE Series,

1+0 Configuration

The modem status LED indicates the modem status as described in Table 2-4.

Table 2-4. Modem status LED.

LED STATUS

Green

Orange

Flashing Green

Flashing Orange

Standby Locked Link (1+1 Non-Diversity Only)

Active Locked Link

Low SNR Unlocked

The controller status LED is the primary front panel indicator of alarms. An alarm is generated when a specific condition is identified and is cleared when the specified condition is no longer detected. When an alarm is posted,

1. The controller status LED turns orange for 5 seconds

2. The controller status LED turns off for 5 seconds

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User Reference and Installation Guide 2-8

3. The controller status LED flashes orange the number of times specified by the first digit of the alarm code

4. The controller status LED turns off for 3 seconds

5. The controller status LED flashes orange the number of times specified by the second digit of the alarm code

Steps 2-5 are repeated for each alarm posted. The entire process is repeated as long as the alarms are still posted.

The standard I/O and modem status LEDs are set to red when certain alarms are posted. A complete list of alarms is provided in Appendix

The alarm description is also displayed in the Graphical User Interface (GUI) as described in the User Interface Reference Manual.

6.1.

2.4.4 Front Panel Connections

Please refer to the followed by a descriptive text of the connections.

Figure 2-3 for an example of a MDS FIVE Series SDIDUTM front panel

Figure 2-3. SDIDUTM Front Panel Connections

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User Reference and Installation Guide 2-9

Power Supply Input

DC Input

-48 VDC

-48v (Isolated Input); 2-pin captive power connector. The MDS FIVE Series requires an input of -48 volts dc ±10% at the front panel DC Input connector. The total required power is dependent on the option cards and protection configuration (1+0, 1+1). The SDIDU

front panel power connector pin numbering is 1 through 2, from left to right, when facing the unit front panel. Pin 1 is the power supply return and is connected to unit chassis ground internally. Pin 2 should be supplied with a nominal -48 V dc, with respect to the unit chassis (ground). A ground-isolated supply may be used, provided it will tolerate grounding of its most positive output.

The recommended power input is -44 to -52 V dc at 2 Amps minimum. It is recommended that any power supply used be able to supply a minimum of 100 W to the SDIDU

A mating power cable connector is supplied with the MDS FIVE Series SDIDU

. It is a 2-pin plug, 5 mm pitch,

manufactured by Phoenix Contact, P/N 17 86 83 1 (connector type MSTB 2,5/2-STF). This connector has screw clamp terminals that accommodate 24 AWG to 12 AWG wire. The power cable wire should be selected to provide the appropriate current with minimal voltage drop, based on the power supply voltage and length of cable required. The recommended wire size for power cables under 10 feet in length supplying -48 Vdc is 18 AWG.

The SDIDU the ODU/SDIDU Series SDIDU DC power is connected to the SDIDU

supplies the ODU with all required power via

Interconnect cable. The MDS FIVE

does not have a power on/off switch. When

, the digital radio powers up and is operational. There can be up to 320 mW of RF power present at the antenna port (external antenna version). The antenna should be directed safely when power is applied.

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Alarm/Serial Interface

Alarms/Serial DB-15HD female connector for two Form-C relay alarm

outputs (rated load: 1A @ 24 VDC), two TTL alarm outputs, four TTL alarm inputs, and Serial Console. The two Form-C relay alarm outputs can be configured to emulate TTL alarm outputs.

USB Interface

USB USB connector, reserved.

Voice Orderwire Connector

Call Button The voice orderwire provides a PTP connection via a PTT

handset and buzzer. The call button initiates a ring. Only the SDIDU™’s link partner will receive the ring. VOW does not ring all nodes or support “party line” calls.

Voice

RJ-45 modular port connector for voice orderwire interface.

Orderwire

Data Orderwire Connector

Data Orderwire RJ-45 modular port connector for RS422/RS-232 data at 64

kbps.

NMS 10/100 Network Management System Connections

NMS 10/100 1 10/100Base-TX RJ-45 modular local port connector for

access to the Network Management System (SNMP) and GUI.

NMS 10/100 2 10/100BaseTX RJ-45 modular remote port connector for

access to the Network Management System (SNMP). This port to be used for consecutive point networks.

100/Ethernet Models: Ethernet 100BaseT Connections

USER 10/100 1 100Base-TX RJ-45 modular port connector for the local Fast

Ethernet interface.

USER 10/100 1 100Base-TX RJ-45 modular port connector. This port to be

used for consecutive point networks.

T1 Channels

T1 1-2 Two T1/E1 (RJ-48C) interface connections. T1 3-16 Fourteen T1/E1 high density interface connector

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Ground Connection

Ground Lug Two ground lugs are provided on the front panel. Either may

be used to connect the SDIDU™ to ground.

2.5 System Description

The overall digital radio architecture consists of a single 1RU rack mount Software Defined Indoor

(SDIDUTM) with a cable connecting to an Outdoor Unit (ODU). The ODU is available with

Unit an integrated antenna or connectors to support an external antenna. Two ODU types are available servicing the 5.8 GHz band or the 5.3 GHz band. This SDIDU advantageous when compared to a single IDU with external mount antenna since supporting a signal of 5.8 GHz from the IDU rack to the antenna will result in significant signal degradation, which would require expensive coaxial cable or waveguide.

/ODU architecture is

Figure 2-4 shows the SDIDUTM and interfaces from a functional point of view. The functional partitions for the I/O, Modem/IF, and power supply modules are shown. The SDIDU

comes with the standard I/O capability that can be upgraded. In addition, the Modem/IF function is modular. This allows the addition of a second Modem to support protection or ring architectures. The power supply is similarly modular.

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IDU

Modem Control

Telemetry

East/Primary Modem

MODEM/

FEC ASIC

West/Secondary Modem

MODEM/

FEC ASIC

Secondary Power

Digital

Primary Power

Supply

Multiplexed

Quad

Mux

-48Vdc

Quad

Mux

-48Vdc

Multiplexed

-48Vdc

2x 100 Mbps

16x 1.544/2.048

Mbps

155.52 Mbps

4x44.736/34.368/

51.84 Mbps

2x 155.52 Mbps

4x44.736/34.368/

51.84 Mbps

IDU

CONTROLLER

SNMP 2x

100Base-Tx

User 2x

100Base-Tx

16 T1/E1

64 kbps

Voice

Standard I/O Cards

Optional I/O Cards

(Small Slot)

STM-1/OC3

DS-3/ES/

STS-1

Optional I/O Cards

(Large Slot)

2xSTM-1/

OC3

4xDS3/ES/

STS1

Future

CPU

Switch

Serial

RCH Serial

FRAMER

ODU

Vertical

Antenna

350

TNC

Quad

Mux

MHz

-48Vdc

5/10

MHz

140

Transmitter

Up-Converter

Receiver

Down-Converter

DC/DC

Converters

Commlink

& Processor

5.3/

5.8

GHz

+10Vdc

+5Vdc +3Vdc

-5Vdc

Figure 2-4. MDS FIVE Series System Block Diagram

The SDIDUTM interfaces with the ODU to receive and provide modulated transmit and receive waveforms. The SDIDU

interfaces provide Fast Ethernet 100Base-T (MDS FIVE Series-100)

connections to the network. Contact factory for availability of SONET OC-3 (MDS FIVE Series-

155) connections. In addition, two E1/T1 channels are provided for PBX extension. SNMP is provided on 10/100BaseT ports.

Transfer

Switch

Duplexer

Diversity

Switch

Internal/

Horizontal

Antenna

BNC

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N-type External

Antenna

RSL

(Received

Signal Level)

Voltage

User Reference and Installation Guide 2-13

The ODU RF Up/Down Converter card provides the interface to the antenna. The transmit section up converts and amplifies the modulated Intermediate Frequency (IF) of 350 MHz from the IF Processor and provides additional filtering. The receive section down converts the received signal, provides additional filtering, and outputs an IF of 140 MHz to the IF Processor. The 64-QAM Modem performs the modulation and demodulation of the payload and forward error correction using advanced modulation and coding techniques. Using all-digital processing, the 64-QAM Modem uses robust modulation and forward error correction coding to minimize the number of bit errors and optimize the radio and network performance. The 64-QAM Modem also scrambles, descrambles and interleaves/deinterleaves the data stream in accordance with Intelsat standards to ensure modulation efficiency and resilience to sustained burst errors. The modulation will vary by application, data rate, and frequency spectrum. The highest order modulation mode supported is 64 Quadrature Amplitude Modulation (QAM).

Table 2-5 summarizes the TCM/convolutional code rates for each modulation type supported by the MDS FIVE Series.

Table 2-5. MDS FIVE Series TCM/Convolutional Code Rates

Modulation Type Available Code

Rates

QPSK 1/2, 3/4, 7/8 16-QAM 3/4, 7/8, 11/12 32-QAM 4/5, 9/10 64-QAM 5/6, 11/12

The major functions of the SDIDUTM can be summarized as follows:

• I/O Processing – The SDIDU

comes with a standard I/O capability that includes support for up to 16xT1/E1 and 2x100Base-TX user payloads, 2x100Base-TX for SNMP, and voice orderwire. In addition, option cards for DS-3/E3/STS-1, 1-2 x STM-1/OC-3, and 4xDS-3/E3/STS-1 may be added. The SDIDU

architecture is flexible and allows for the addition of other I/O types in the

future.

• Switch/Framing – The SDIDU

includes an Ethernet Switch and a proprietary Framer that are designed to support 1+1 protection switching, ring architecture routing, and overall network control functions.

• Network Processor – The SDIDU

includes a Network Processor that performs SNMP and

Network Management functions.

• Modem/IF – The SDIDU

Modem performs forward-error-correction (FEC) encoding, PSK/QAM modulation and demodulation, equalization, and FEC decoding functions. The IF chain provides a 350 MHz carrier, receives 140 a MHz carrier, processes OOK telemetry, and provides –48V power. Two modems can be used for 1+1 protection or ring architectures.

• Power Supply – The SDIDU

power supply accepts -48 Vdc and supplies the SDIDUTM and ODU

with power. A second redundant power supply may be added as an optional module.

The Modem Processor and its associated RAM, ROM, and peripherals control the digital and analog Modem operation. It also provides configuration and control for both the IF and I/O cards.

The

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User Reference and Installation Guide 2-14

SDIDU

interfaces with the ODU to receive and provide modulated transmit and receive

waveforms. The SDIDUTM also provides the physical interface for the user payload and network management.

In transmit mode, the Framer merges user payload with radio overhead-encapsulated network management data. This combined data stream is transmitted without any loss of user bandwidth. In the receive mode, the Framer separates the combined data stream received from the 64-QAM Modem. The SDIDU 100BaseT data interface port. The SDIDU

supports Scalable Ethernet data rates, such as 25 or 50 Mbps via the

provides network management data on 10 Mbps ports accessible via the 10/100BaseTX port. The Central Processor Unit (CPU) provides the embedded control and network element functionality of the NMS. The CPU also communicates with other functions within the SDIDU

for configuration, control, and status monitoring.

In Ethernet models, the payload of each user Ethernet data packet and all T1 can be encrypted using an AES encryption algorithm. In addition, the encryption engine is re-seeded with a new, randomly generated key stream every 10 seconds, in order to provide enhanced security. The initial key is based off of a pass phrase entered into each MDS FIVE Series unit by the network administrator. Consult factory for the availability of this encryption function.

The power supply converts -48 Vdc to the DC voltage levels required by each component in the system.

2.6 Consecutive Point Architecture

The consecutive point network architecture is based upon the proven SONET/SDH ring. Telecommunications service providers traditionally use the SONET/SDH ring architecture to implement their access networks. A typical SONET/SDH network consists of the service provider’s Point of Presence (POP) site and several customer sites with fiber optic cables connecting these sites in a ring configuration (see deliver high bandwidth with high availability to their customers.

Figure 2-5). This architecture lets providers

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User Reference and Installation Guide 2-15

Figure 2-5. Ring Configuration.

SONET/SDH rings are inherently self-healing. Each ring has both an active path and a standby path. Network traffic normally uses the active path. Should one section of the ring fail, the network will switch to the standby path. Switchover occurs in seconds. There may be a brief delay in service, but no loss of payload, thus maintaining high levels of network availability.

The consecutive point architecture implemented in the MDS FIVE Series Digital Radio family is based on a point-to-point-to-point topology that mimics fiber rings, with broadband wireless links replacing in-ground fiber cable. A typical consecutive point network consists of a POP and several customer sites connected using MDS FIVE Series units. These units are typically in a building in an east/west configuration. Using east/west configurations, each unit installed at a customer site is logically connected to two other units via an over-the-air radio frequency (RF) link to a unit at an adjacent site.

Each consecutive point network typically starts and ends at a POP. A pattern of wireless links and in-building connections is repeated at each site until all buildings in the network are connected in a ring as shown in need to be jumpered between two SDIDU there is a single SDIDU

Figure 2-6. . For 2 x 1+0 and 2 x 1+1 nodes payload and NMS connections

. For SDH or SONET payloads, the configuration is similar but an

s. For 1 x 2+0 nodes, there is no need for jumpers as

external add/drop mux and a second SDH/SONET interface card are required.

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Figure 2-6. Consecutive Point Network

2.7 2 + 0 (East-West) Configuration

The SDIDUTM supports an east/west, or 2+0, configuration that allows a consecutive point architecture to be achieved with only a single 1 RU chassis at each location. In this configuration the SDIDU is referred to as the west modem and the other as the east modem. The SDIDU to two ODUs, one broadcasting/receiving in one direction of the ring architecture and t he other broadcasting/receiving in the other as shown in

contains two modems supplies and may contain two power supplies. One modem

Figure 2-7.

is connected

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User Reference and Installation Guide 2-17

Connected to

west modem

Connected to

east modem

Connected to

east modem

Connected to

east modem

Connected to

west modem

Connected to

west modem

Connected to east modem

Connected to

west modem

Figure 2-7. 2+0 (East-West) configuration.

2.8 Spanning Tree Protocol (STP)

Spanning Tree Protocol STP keeps Ethernet loops from forming in a ring architecture. Without STP, loops would flood a network with packets. STP prevents loops by creating an artificial network break. In the event of a network outage, STP automatically removes the artificial break, restoring connectivity.

2.9 1+1 Protection

The MDS FIVE Series supports 1+1 protection as an option for a critical link. In this configuration, protection is provided in a single 1 RU chassis. The SDIDU supplies and two modems. The power supply, ODU, IF/telemetry and modem are protected. The digital framing and LIUs are not. One modem is referred to as the west modem and the other as the east modem. 1+1 protection can be run in two modes called Protected Non-Diversity and Protected Diversity. © 2006 Microwave Data Systems Inc. All Rights Reserved. MDS FIVE Series

contains two power

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User Reference and Installation Guide 2-18

2.9.1 Protected Non-Diversity (Hot Standby)

Figure 2-8Error! Reference source not found. shows operation in Protected Non-Diversity mode, also called Hot Standby. In this mode, one ODU at each location transmits to two ODUs at the other location. This mode does not require the extra bandwidth or interference protection. It provides hitless receive switching and hot standby. The SDIDU transmit ODU upon appropriate ODU alarm or ODU interface error, minimizing transmit outage time.

automatically switches

Connected to

west modem

Connected to east modem

Connected to

west modem

Connected to

east modem

Figure 2-8. 1+1 protection in non-diversity mode

2.9.2 Protected Diversity

In Protected Diversity mode, the link between each pair of modems is the same, as shown in Figure 2-9Error! Reference source not found., providing complete redundancy. This arrangement requires bandwidth for both links and non-interference between the links, but it provides hitless receive and transmit switching. The SDIDU spatial diversity.

supports both frequency and

Connected to

west modem

Connected to east modem

Connected to

west modem

Connected to

east modem

Figure 2-9. 1+1 protection in diversity mode

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2.9.2.1 Frequency Diversity

In frequency diversity, two frequencies are used to achieve non-interference. The proprietary framer chooses the best, or error-free, data stream and forwards it to the Line Interface Units (LIUs).

2.9.2.2 Spatial Diversity

In spatial diversity, two non-interfering paths are used. The proprietary framer chooses the best, or error-free, data stream and forwards it to the Line Interface Units (LIUs).

2.9.2.2.1 Single Transmitter Protected Non-Diversity, or Hot Standby, is also refered to as Single Transmitter Spatial Diversity.

For more information on this mode, see Section

2.9.2.2.2 Dual Transmitter When using Dual Transmitter Spatial Diversity, two active transmitters are physically isolated to

avoid crosstalk.

2.9.1.

2.10 1 + 1 Multi-hop Repeater Configuration

The MDS FIVE Series supports a 1 + 1 multi-hop repeater configuration with drop/insert capability as shown in described in section architecture as described in section dropped or inserted. Front panel connections for drop/insert capability are shown in In this configuration each SDIDU

Figure 2-10. This configuration provides individual 1 + 1 link protection as

2.8, as well as the full-scale protection inherent in the consecutive point

2.6. At each location within the network, data may be

contains two power supplies and two modems.

Figure 2-11.

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User Reference and Installation Guide 2-20

Protected

Data drop/insert

Link

drop/insert

Protected

Link

Protected

Link

Data

Data drop/insert

Protected

Link

Data drop/insert

Figure 2-10. 1 + 1 Multi-hop Repeater Configuration

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User Reference and Installation Guide 2-21

Figure 2-11. Front Panel connections in 1 + 1 multi-hop repeater configuration

2.11 Data Interfaces

The I/O card has 2x100BaseTX interfaces that can be configured as either primary payload, or secondary wayside channels. The Over-the-air channel has a data-bandwidth capacity that is set by the frequency-bandwidth, modulation, and coding. The data-bandwidth may be allocated to various I/O card interfaces, including 155.52 Mbps for STM-1, 2 Mbps per E1, up to 100 Mbps Ethernet, and up to 1 Mbps NMS. Only up to 100 Mbps of data-bandwidth may be allocated for either net data, and the two I/O card 100BaseTX interfaces will share that 100 Mbps databandwidth.

There is also an option mini-I/O card, which provides STM-1 Optical/OC-3 or STM-1 Electrical interfaces. The optical interface is single mode at 1300 nm. Consult factory for availability of Mini-IO STM-1/OC-3 Module.

2.12 Crosspoint Switch

The SDIDU™ crosspoint switch provides any-to-any E1/T1 routing between front panel ports and RF links, as shown in routings or custom routing. Custom routings are uploaded to the SDIDU™ via FTP. Two examples of the crosspoint capability are to use the crosspoint switch to configure a repeater or an add/drop. These examples are shown in Crosspoint Switch is used as a passthrough to send E1/T1s from the east modem to the west modem. In the add/drop example, the crosspoint switch connects E1/T1s from the modems to the front-panel ports.

Figure 2-12. Flexible channel mapping allows selection from predefined

Figure 2-13. In the repeater example, the

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User Reference and Installation Guide 2-22

Repeater Example

Up to 32 E1

Modem East Modem West

Up to 32 E1

Modem East Modem West

Framer

Up to 16E1

Crosspoint

Switch

Optional IO

Up to 16E1

Figure 2-12 Crosspoint switch

Up to 32 E1

Add/Drop Example

Up to 32 E1

Modem East Modem West

Up to 16E1

Framer

Crosspoint

Switch

Optional IO

Up to 16E1

Framer

Crosspoint

Switch

Optional IO

Up to 16E1

Figure 2-13 (a) Crosspoint switch used a passthrough in repeater configuration. (b)

Crosspoint switch allows access for add/drop.

2.13 Power Management

RF power management is a radio design feature that controls the power level (typically expressed in dBm) of the RF signal received from a transmitter by a receiver. The traditional goal of power management is to ensure that the RF signal at a receiver is strong enough to maintain the radio link under changing weather and link conditions.

05-4498A01, Rev. G

+ 70 hidden pages

GE MDS DS-5800-2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Safety Precautions

2 System Description

2.1 About This Manual

2.2 Introduction

2.3 System Features

2.4 Physical Description

2.4.1 Model Types

2.4.2 Options

2.4.3 Front Panel Indicators

2.4.4 Front Panel Connections

2.5 System Description

2.6 Consecutive Point Architecture

2.7 2 + 0 (East-West) Configuration

2.8 Spanning Tree Protocol (STP)

2.9 1+1 Protection

2.9.1 Protected Non-Diversity (Hot Standby)

2.9.2 Protected Diversity

2.9.2.1 Frequency Diversity

2.9.2.2 Spatial Diversity

2.9.2.2.1 Single Transmitter Protected Non-Diversity, or Hot Standby, is also refered to as Single Transmitter Spatial Diversity.

2.9.2.2.2 Dual Transmitter When using Dual Transmitter Spatial Diversity, two active transmitters are physically isolated to

2.10 1 + 1 Multi-hop Repeater Configuration

2.11 Data Interfaces

2.12 Crosspoint Switch

2.13 Power Management