Plessey MDR5800 User manual

MDR5800 User Manual
862-01881 Issue 6 Page 1
MDR5800 Digital Radio
User Manual
Document Number: 862-01881

MDR5800 User Manual
862-01881 Issue 6 Page 2
Issue Status
Issue Revised Pages/Amendments
1 1
2 31
3 2
4General – terminology definition PER used instead of BER to
remove interpretation ambiguity between Block Error Rate and Bit
Error Rate. Note Block (equivalent to packet) concept is still
maintained within sections describing G.826 parameters to maintain
consistency with G.826 terminology.
5MIB Description chapter added, RESET Button Additions, chapter on
setup of a serial connection between a PC/Laptop and the Element
Management Port, IP network address description diagrams.
6Amendments related to customer furnished equipment, Outdoor Unit
temperature range update, Maintenance and Ordering section
updates, Appendix added regarding Antennas.
FEDERAL COMMUNICATIONS COMMISSION NOTICE
The equipment has been tested and found to comply with the limits for a Class A digital devices,
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 is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
The manufacturer is not responsible for any radio or TV interference caused by unauthorized
modifications to this equipment. Such modifications could void the user's authority to operate the
equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
WARNING- To comply with FCC RF exposure limits, the
antennas for this transmitter must be fix-mounted to
provide a separation distance of 2 meters (6.6 ft) or more
from all persons to satisfy RF exposure requirements.
This equipment must be professionally installed.
The antennas for this equipment must be fixed mounted on permanent outdoor structures.

MDR5800 User Manual
862-01881 Issue 6 Page 3
Publication Number: 862-01881
Issue 6
April 2001
© 1999 Tellumat (Pty) Limited
The information contained herein is the property of Tellumat (Pty) Limited and is supplied
without liability for errors or omissions. No part may be reproduced, used or disclosed
except as authorised by contract or other written permission. The copyright and the
foregoing restriction on reproduction, use and disclosure extend to all media in which this
information may be embodied, including magnetic or electronic storage etc.

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862-01881 Issue 6 Page 4
Table of Contents
Page
1INTRODUCTION 9
1.1 MDR5800 Description 9
2TECHNICAL DESCRIPTION 11
2.1 System Overview 11
2.2 Outdoor Unit 11
2.2.1 Frequency plans 12
2.2.2 RF Power Output Options 13
2.2.3 MDR5800 Outdoor Unit 13
2.3 Indoor Unit 14
2.3.1 Payload Interface Options 14
2.3.2 Service (Wayside) Serial Data Channel 16
2.3.3 Element Manager Port 16
2.3.4 10BaseT Ethernet RJ45 Port 16
2.3.5 IU/OU Link LED 17
2.3.6 IU/OU Data Interconnect RJ45 17
2.3.7 IU/OU Power Interconnect 17
2.3.8 Auxiliary In/Out Port 17
2.3.9 DC Power Input 18
2.3.10 Fuse Holder 18
2.3.11 ON/OFF Switch 18
2.3.12 Ground Terminal 18
3PLANNING 20
3.1 System Type Selection 20
3.1.1 Antenna selection (MDR5800) 20
3.2 Site Evaluation 21
3.3 Multipath Effects 21
3.4 Interference Considerations 22
3.5 Microcell Backhaul Applications of MDR5800 Digital Radios 23
3.5.1 Setting the Transmitted Power Levels 23

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3.5.2 Frequency Multiplexing 23
3.5.3 Antenna Isolation 23
4INSTALLATION 25
4.1 Customer Furnished Tools and Equipment 26
4.2 Indoor Unit 27
4.2.1 Introduction 27
4.2.2 Installing the Indoor Unit in a Rack 27
4.2.3 Connecting a DC Power Supply 28
4.2.4 Balanced Payload Data 29
4.2.5 Connecting Auxiliary In/Out (Optional) 30
4.2.6 Connecting the Service (Wayside) Serial Channel (Optional) 31
4.2.7 Connecting the Element Manager Port 31
4.3 Outdoor Unit 32
4.3.1 MDR5800 Outdoor Unit 32
4.4 Interconnection Cable Installation 33
4.4.1 INTERCONNECTION CABLE WIRING DESCRIPTION 34
5ANTENNA ALIGNMENT AND SOFTWARE SETUP 36
5.1 Installation Equipment Required 36
5.2 Information Required 36
5.3 Antenna Alignment 36
5.3.1 Introduction 36
5.3.2 Alignment Procedure 37
5.3.3 Set Transmitted Power Level 37
5.4 Software Setup 38
5.5 Functional Test 38
5.5.1 Link Bit Error Rate Performance Test 38
5.6 MDR5800 Installation Record 40
5.7 MDR5800 Test Record 41
6NMS SOFTWARE 43
6.1 Introduction to the Network Management System 43
6.2 General Information 43
6.2.1 Microwave Digital Radio 44

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6.3 Main Screen 45
6.3.1 Link Elements Areas 46
6.4 NMS Menus 47
6.4.1 Main Screen Menus 47
6.4.2 Main Screen Short-cut Buttons 49
6.5 Indoor Unit Configuration 49
6.5.1 Controls 49
6.5.2 Menu Items 52
6.6 Outdoor Unit Configuration 56
6.6.1 Controls 56
6.6.2 Menu Items 56
6.6.3 OU Station Info 57
6.6.4 Outdoor Unit Status 57
6.7 RF Link Error Status Monitoring 58
6.7.1 RF Link Status 58
6.7.2 Packet Error Rate Thresholds 58
6.7.3 RF Link Error Monitor 59
7MAINTENANCE INFORMATION 62
8TECHNICAL DATA 64
8.1 Environmental Requirements 64
8.1.1 Outdoor Equipment 64
8.1.2 Indoor Equipment 64
8.2 Mechanical Information for Outdoor Equipment 64
8.2.1 MDR5800 Outdoor Unit 64
8.3 Mechanical Information for Indoor Equipment 64
8.4 Power Supply Requirements 64
8.5 Electrical Performance 64
8.5.1 General Characteristics 65
8.5.2 Transceiver Characteristics 65
8.5.3 RF Interface 66
8.5.4 Payload Data Interfaces 66
8.5.5 Auxiliary Input Interface (CONTACT CLOSURE) 67
8.5.6 Auxiliary Output Interface 67

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8.5.7 Wayside channel interface 67
8.5.8 Element Manager Port Interface 67
8.5.9 Indoor/Outdoor Unit Interface 67
8.6 Ordering Information 69
9APPENDIX A: ELEMENT MANAGER PORT POINT-TO-POINT SERIAL COMMUNICATIONS SETUP72
9.1 Adding a Modem : Windows NT 73
9.2 Adding Dial-up Networking : Windows NT 77
9.2.1 To add dial-up networking 77
9.3 Adding a Modem : Windows 95/98 82
9.4 Adding Dial-up Networking : Windows 95/98 85
10 APPENDIX B: MANAGEMENT OF THE MDR5800 87
10.1 SNMP and the MDR5800 87
10.2 The MIB Elements – OID (Object ID) DESCRIPTIONS 89
10.3 The MIB elements – TRAP DESCRIPTIONS 102
11 APPENDIX C: SETUP OF A PC (WIN 95, 98, NT) TO ALLOW PINGING OF A ‘REMOTE’-CONFIGURED
INDOOR UNIT 105
11.1 IP CONFIGURATION OF THE MDR5800 – ROUTING CONFIGURATION 105
11.2 IP CONFIGURATION OF THE MDR5800 – BRIDGING AND ROUTING
CONFIGURATION 107
12 APPENDIX D: MDR5800 HARDWARE VERSION 1, 2.X DIFFERENCES, COMPATIBILITY SUMMARY
108
13 APPENDIX E: FIXED ANTENNAS 109

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List of Abbreviations
BIT Built-in-Test
AIS Alarm Indication Signal
PER Packet (or Block) Error Rate
DC Direct Current
DCE Data Communications Equipment
DRL Digital Radio Link
DRS Digital Radio Station
DTE Data Terminal Equipment
IU Indoor Unit
ISM Industrial, Scientific and Medical
LED Light Emitting Diode
LOS Loss of signal
Mbps Megabits per second
N.C Normally-closed
N.O Normally-open
NMS Network Management System
OU Outdoor Unit
PC Personal Computer
RF Radio Frequency
RSSI Received Signal Strength Indication
SNMP Simple Network Management Protocol

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1INTRODUCTION
1.1 MDR5800 Description
The MDR5800 is a 5.8 GHz digital radio system that provides short to medium range,
point-to-point digital communication with high data security at rates of E1, 2E1 or 4E1.
Alternatively, the radio can be software configured to convey T1, 2T1 or 4T1. The
radio can also be configured to bridge or route IP via a 10BaseT Ethernet port. The
data rates scale depending on the number of enabled E1/T1 tributaries and whether
the data is being bridged or routed. The product makes use of spread spectrum
technology and may be operated license-free in the 5.8 GHz ISM band. It is ideal for
applications such as:
•Telecommunications companies, cellular operators and private carriers.
•Cellular/PCS base station interconnects.
•Internet distribution.
•Video surveillance data distribution.
•Rural communications.
The MDR5800 consists of two main parts:
•An Outdoor Unit operating in the 5.8 GHz ISM frequency band.
•An Indoor Unit, available with a Telecommunications (1, 2 or 4E1 or 1, 2 or
4T1) interface and a Data interface (10BaseT Ethernet).
Interconnection between the Outdoor Unit and Indoor Unit is achieved using a low-
cost UV-protected STP (Screened Twisted Pair: 4 pairs) data cable and a UV-
protected 2-core power cable. The MDR5800 series product uses a split Indoor Unit
and Outdoor Unit configuration for lowest loss between the antenna and the
transceiver, thereby ensuring optimal long-range performance.
MDR5800 Outdoor Unit uses a Type-N RF (female) output connector for connection
to any 5.8 GHz antenna for applications where long range is required.
The system is available for use in FCC regulated countries.

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Table 1lists the MDR5800 model variants.
Table 1. MDR5800 model variants
Model Number Interfaces Antenna Coupling Antenna Type
MDR5800-ET1 E1/T1
10BaseT Ethernet N-type Female Customer
supplied
MDR5800-ET2 2 x E1 / 2 x T1
10BaseT Ethernet N-type Female Customer
supplied
MDR5800-ET4 4 x E1 / 4 x T1
10BaseT Ethernet N-type Female Customer
supplied
Refer to section 8 for Ordering details.
The Network Management System provides control and management of the product.
SNMP support via an SNMP agent in the Indoor Unit ensures open network
management compatibility.
Comprehensive data and RF loop-back functions ensure that the system is easy to
install and maintain.

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2TECHNICAL DESCRIPTION
2.1 System Overview
A MDR5800 digital radio link (DRL) consists of a pair of MDR5800 radio stations.
The MDR5800 radio station consists of two main parts:
•An Outdoor Unit operating in the 5.8 GHz ISM frequency band. The Outdoor Unit
provides the radio transceiver functionality by accepting radio link data from the
Indoor Unit and converting it to the 5.8 GHz ISM frequency band using spread
spectrum modulation. The received signal is de-spread and transmitted to the
Indoor Unit in a digital format.
•An Indoor unit, available with 1, 2 or 4 E1 and 1, 2 or 4 T1 data interfaces (choice
of E1 or T1 is software selectable). The Indoor Unit combines nE1 or nT1 data
with Wayside Service Channel serial data and link IP data to be transmitted
across the radio link. The Indoor Unit also provides power to the Outdoor Unit.
Interconnection between Outdoor Unit and Indoor Unit is achieved using low cost data
and power cables.
2.2 Outdoor Unit
The MDR5800 Outdoor Unit makes use of Spread Spectrum modulation technology
for license-free operation in the 5.8 GHz ISM band.
For MDR5800 operation, the 5.8 GHz ISM band is divided into upper and lower
frequency sub-bands. An MDR5800 ‘High Band’ Outdoor Unit transmits in the higher
frequency sub-band and receives in the lower frequency sub-band, while a ‘Low Band’
Outdoor Unit transmits in the lower sub-band and receives in the higher sub-band. An
MDR5800 radio link will use a ‘Low Band’ Outdoor Unit on one end of the link to
communicate with a ‘High Band’ Outdoor Unit on the other end.
The MDR5800 Outdoor Unit uses a Type-N RF output connector for connection to any
5.8 GHz antenna for applications where long range is required.
The system is available for use in FCC regulated countries.
User Data
MDR5800 ODU
MDR5800 IDU
User Data
MDR5800 ODU
MDR5800 IDU

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2.2.1 Frequency plans
The MDR5800 Outdoor Units operate in the 5.725 GHz to 5.850 GHz ISM frequency
band. The MDR5800 has predefined frequency channel plans (termed A, B, C and
D).
2.2.1.1 Frequency Channel Plan A, B and C
Transmit-to-receive channel spacing for frequency channel plans A, B and C is 69
MHz. The channel spacing is based on the bandwidth occupied by the spread
spectrum signal (approximately 17 MHz) and is used to optimise link performance. In
the case of plan A, plan B and C, note that both Outdoor Units of a link must be set up
to the same frequency channel plan (i.e. A, B or C).
C
H
B
H
Frequency (MHz)
LOW BAND TRANSMIT HIGH BAND TRANSMIT
A
H
A
L
B
L
C
L
5735 5753 5771 5804 5822 5840
Figure 1. Frequency channel plans A, B and C

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Frequency Channel Plan D
Frequency plan D allows independent control of transmit and receive frequencies.
This enables a very flexible frequency plan and can be used to overcome interference
in the 5.8 GHz ISM band.
The frequencies that can be used in the lower or upper sub-bands can be selected in
1 MHz increments. Performance degradation can be expected when operating using
channel plan D mode and the chosen frequencies are close to the sub-band edges i.e.
a choice of one of the high frequencies in the lower sub-band and one of the lower
frequencies in the upper sub-band.
The allocation of Channel plan D frequencies is shown in Table 2.
Table 2. Channel plan D channel frequencies
Sub-band Center Frequency (MHz)
L5735-5771
H5804-5840
2.2.2 RF Power Output Options
The Outdoor Unit is designed for use in countries that have adopted FCC standards.
It is possible to adjust the output power on the OU using the supplied NMS software or
a SNMP Management application.
2.2.3 MDR5800 Outdoor Unit
The MDR5800 Outdoor Unit transmits and receives RF through a diplexer interfaced
via an RF cable to an external antenna. The unit has a type-N connector for
connection to the RF cable used between the OU and the antenna.
The MDR5800 Outdoor Unit houses the following main parts:
•Transmit/Receive Modules
•Baseband Modulator/Demodulator Circuitry
•Microcontroller/Framing & Buffering Circuitry
•Power Amplifier
•Diplexer

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2.3 Indoor Unit
The Indoor Unit is designed for mounting in a 19” rack, occupying a 1U slot, or can be
table-top standing.
The Indoor Unit accepts user nE1/nT1 and combines it with Wayside Service Serial
Data and IP data to be transmitted across the radio link.
The Indoor Unit is fitted with a DC power supply.
2.3.1 Payload Interface Options
The Indoor Unit can be configured for nE1 or nT1 operation.
•1, 2 or 4 x E1 (2.048 Mbps)
•1, 2 or 4 x E1 (1.544 Mbps)
For E1 connectivity, bipolar AMI or HDB3 line coding is software selectable.
For T1 connectivity, bipolar AMI or B8ZS line coding is software selectable.
Figure 2. Indoor Unit Front Panel
The Indoor Unit LED functionality is described as follows:
SYSTEM
Green OK, Orange (OU/IU Comms Error), Red (OU/IU Comms Down)
PAYLOAD
Green OK, Orange (AIS Detected), Red (LOS Detected)
RF LINK
Green OK, Orange (FEC Correcting Errors), Red (FEC unable to correct errors)
Reset/Configuration
Button System
LED
Payload
LED
Wayside Service
Serial Channel
nE1/nT1
Connector
RF Link
LED
Element
Manager
Connector
Ethernet Link LED
10BaseT RJ45
Socket

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In ALL cases flashing red and orange LEDs imply historic alarm conditions
(The alarm can be cleared using the front panel button ‘position 1’ : see
next section).
Reset/Configuration Button
The Front Panel Button has the following functionality used to setup a radio (as
determined by different LEDs lighting up. ‘Position 1’ being RF Link LED (Green), 2
being Payload LED (Green), 3 being System LED (Green), 4 being RF Link LED
(Orange), 5 being Payload LED (Orange) and 6 being System LED (Orange) etc.
1. Clear Front Panel LEDs (and associated alarms in IU)
2. Clear Event Log in the Indoor Unit
3. Reset the Indoor Unit (don’t reset the non-volatile memory’s store of the IU’s
configuration parameters)
4. Routed Configuration: Reset the IU configuration parameters that are stored in non-
volatile memory (BATTERY-BACKED STATIC RAM) and configure as a ‘Far Side
IU’ : i.e. for a ROUTED IP configuration, set the Ethernet IP address as 10.11.1.2,
Element Manager IP address to 10.12.1.2
5. Routed Configuration: Reset the IU configuration parameters that are stored in non-
volatile memory and configure as a ‘Near Side IU’ : i.e. for a ROUTED IP
configuration set the Ethernet IP address as 10.2.1.2, Element Manager IP address
to 10.13.1.2
6. Routed Configuration: If you are not sure how the IU is configured (NEAR or FAR
side IU), reset it AS IS i.e. reset the ‘Near Side IU’ or ‘Far Side IU’ configuration
parameters depending on how the IU is currently configured.
7. Bridged Configuration: Reset the IU configuration parameters that are stored in
non-volatile memory (BATTERY-BACKED STATIC RAM) and configure as a ‘Far
Side IU’ . For a BRIDGED IP configuration, see Appendix C of this document for a
description of the default IP addresses.
8. Bridged Configuration: Reset the IU configuration parameters that are stored in
non-volatile memory and configure as a ‘Near Side IU’. For a BRIDGED IP
configuration, see Appendix C of this document for a description of the default IP
addresses.

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NOTE
POSITIONS 4, 5, 6, 7 and 8 RESET THE INDOOR UNIT TO FACTORY DEFAULTS – THESE
RESETS ARE TYPICALLY ONLY USED ONCE (THESE CHOICES RESET CERTAIN
ADJUSTABLE PARAMETERS IN NON-VOLATILE MEMORY IN THE INDOOR UNITS). IF
CHANGES ARE MADE TO THE CONFIGURATION PARAMETERS AND THE USER DOES NOT
WANT THESE TO CHANGE WHEN A UNIT IS RESET, THE INDOOR UNIT CAN BE POWER-
CYCLED OR POSITION ‘3’ MUST BE USED E.G. THIS TECHNIQUE IS USED IF THE IP
ADDRESSES ASSOCIATED WITH THE NETWORK INTERFACES ARE ADJUSTED – THE
PROCESSOR NEEDS TO BE RESET TO ALLOW THE CHANGE/S TO BE IMPLEMENTED.
IF YOU OVER-RUN THE SELECTION YOU REQUIRE, CONTINUE UNTIL THE LEDs GO
BLANK – THEN, START AGAIN (OPTION AVAILABLE WITH RELEASE 2 OF IU FIRMWARE).
2.3.2 Service (Wayside) Serial Data Channel
This port supports asynchronous full duplex, serial data transfer at a speed of 115200
bps.
The interface type is RS-232 configured as DCE (Data Communications Equipment).
Handshaking can be None, Hardware.
2.3.3 Element Manager Port
This port is used for communication with the NMS software or with an SNMP manager
to control the MDR5800 system. The port must be connected to a serial port
(configured for a speed of 115200 bps) on a personal computer to use the NMS
software.
The interface type is RS-232 configured as DTE (Data Terminal Equipment).
Hardware handshaking is used.
2.3.4 10BaseT Ethernet RJ45 Port
This port is used for communication with the NMS software or with an SNMP manager
to control the MDR5800 system.
The interface type is DTE (Data Terminal Equipment).

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Figure 3. Indoor Unit Rear Panel
2.3.5 IU/OU Link LED
This LED indicates if there is a suitable electrical connection between the Indoor and
Outdoor Units1.
2.3.6 IU/OU Data Interconnect RJ45
This receptacle accepts an RJ45 plug that connects to UV-protected STP (Screened
twisted pair) cable used between the IU and the OU.
2.3.7 IU/OU Power Interconnect
This connector (socket) is used for power interconnection between the IU and the OU.
The connection is made using UV-protected 2-core cable. The cable is connected to
a GREEN connector, a plug. The polarity sense (labelled) must be maintained
between the IU and the OU.
2.3.8 Auxiliary In/Out Port
The auxiliary in/out port is used for remote monitoring and control. The following are
provided
•Two inputs (for sensing contact closure or opening) are provided to sense site
alarm inputs. The states of these alarm inputs can be monitored with NMS, as
well as from an SNMP Management Station.
•Two relay contact outputs, normally-open and normally-closed contacts, are
provided as alarm / auxiliary outputs. Output states are software customised
1Note that only the Ethernet Physical interface is checked on V1 hardware with this LED, not the
RS232/485 interface. The integrity of the RS232/485 interface is checked using the front panel
“System LED”.
IU/OU Data
Interconnect RJ45
IU/OU Power
Interconnect
Auxiliary IO
DC In
Fuse
Holder
ON/OFF
Switch
Ground
Terminal
IU/OU Link LED

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and controlled. The outputs are used to indicate alarm or other states selected
by the operator via the NMS or a SNMP Management Station.
2.3.9 DC Power Input
This connector (socket) is used for power input to the IU. The connection is made
using 2-core cable. The cable is connected to a GREY connector, a plug. The
polarity-sense (labelled) must be observed and implemented.
2.3.10 Fuse Holder
This holder is used to hold a fuse (5A).
2.3.11 ON/OFF Switch
This switch is used to control power input to the Indoor Unit (and indirectly the
Outdoor Unit).
2.3.12 Ground Terminal
This is used to accept connection to an earth strap, terminated with a crimped earth
lug. Refer to the installation chapter for details on wire/earth lug requirements.

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3PLANNING
This chapter is aimed at management and planning staff to enable them to assess the
requirements for installing an MDR5800 digital radio link.
3.1 System Type Selection
The MDR5800 system uses an Outdoor Unit with a type-N RF output for connection
to a range of antennas.
The MDR5800 is aimed at FCC regulated markets.
Antenna polarisation can used to co-locate multiple MDR5800 systems.
Antenna polarisation can be used to overcome interference.
3.1.1 Antenna selection (MDR5800)
The antenna type must be selected before the MDR5800 system is to be installed.
The chosen antenna must enable the system to operate with sufficient link fade
margin without excessive cost and allow the user’s ‘link availability requirements’ to
be met.
The main consideration when selecting an antenna is antenna gain measured in dBi.
A path loss analysis is highly recommended to determine the antenna gain needed for
adequate fade margin. The table below shows antenna selection guidelines for some
configurations. The distances are calculated for a 20 dB link fade margin.
Table 3MDR25800 Antenna Selection
Antenna Type Gain
(dBi) Distance (Km) Power level
(dBm)
0.15 m Flat panel 18 9 24
0.3 m Flat panel 24 30 24
0.6 m Flat panel 28 80 24