GE MDS DS-5800-2 MDS 5800 II Digital Radio Transceiver User Manual Manual

Download:
Mirror Download [FCC.gov]
Document ID	568803
Application ID	JycW4A1oF3YMWjFT4I8FEQ==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	76.53kB (956680 bits)
Date Submitted	2005-08-05 00:00:00
Date Available	2005-08-05 00:00:00
Creation Date	2005-07-22 19:46:15
Producing Software	Acrobat Distiller 5.0 (Windows)
Document Lastmod	2005-08-04 13:52:14
Document Title	Microsoft Word - MDS5800 UserReference-FCC-MDS[1].doc
Document Creator	PScript5.dll Version 5.2
Document Author:	jsanchez

Microwave Data Systems
MDS 5800 II Digital Radio
Transceiver
User Reference and Installation Manual
June 2005
MDS 5800 II
Table of Contents
SAFETY PRECAUTIONS ......................................................................................................................1-1
FCC Part 15 Notice ................................................................................................................................................... 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
Optional Equipment................................................................................................................................... 2-6
2.4.3
Front Panel Indicators................................................................................................................................ 2-6
2.4.4
Front Panel Connections............................................................................................................................ 2-7
2.5
System Description ........................................................................................................................................ 2-10
2.6
Consecutive Point Architecture.................................................................................................................... 2-13
2.7
Network Management................................................................................................................................... 2-15
2.8
Power Management....................................................................................................................................... 2-16
2.9
MDS 5800 II Software and Network Management .................................................................................... 2-17
2.10
1+1 Protection ................................................................................................................................................ 2-17
2.11
2 + 0 (East-West) Configuration................................................................................................................... 2-18
INSTALLATION .....................................................................................................................................3-1
3.1
Unpacking ........................................................................................................................................................ 3-1
3.2
Notices............................................................................................................................................................... 3-2
3.3
PRE-INSTALLATION NOTES..................................................................................................................... 3-2
3.4
Overview of Installation and Testing Process ............................................................................................... 3-3
3.5
Site Evaluation ................................................................................................................................................. 3-4
3.5.1
Preparing for a Site Evaluation.................................................................................................................. 3-5
3.5.2
Site Evaluation Process ............................................................................................................................. 3-6
3.5.3
Critical System Calculations.................................................................................................................... 3-10
3.5.4
Documenting a Site Evaluation ............................................................................................................... 3-14
3.6
Installation of the MDS 5800 II .................................................................................................................... 3-17
3.6.1
Installing the MDS 5800 II Software Defined IDUTM ............................................................................. 3-17
3.6.2
Installing the MDS 5800 II ODU ............................................................................................................ 3-18
3.6.3
Routing the ODU/ SDIDUTM Interconnect Cable.................................................................................... 3-20
3.6.4
Grounding the System ............................................................................................................................. 3-21
3.6.5
Connecting the SDIDUTM to the PC and Power Source .......................................................................... 3-23
3.7
MDS 5800 II Quick Start Guide................................................................................................................... 3-25
3.7.1
Materials Required .................................................................................................................................. 3-25
3.7.2
IDU Configuration Process...................................................................................................................... 3-25
3.7.3
Connecting the SDIDUTM to the PC and Power Source .......................................................................... 3-26
3.7.4
ODU Antenna Alignment ........................................................................................................................ 3-30
3.7.5
Documenting MDS 5800 II Configuration .............................................................................................. 3-31
SUMMARY SPECIFICATION ................................................................................................................4-1
FRONT PANEL CONNECTORS ...........................................................................................................5-1
MDS 5800 II
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.......................................................................................................................... 5-4
5.8
ODU Connector ............................................................................................................................................... 5-5
5.9
T1- Channels 1-2 Connector ........................................................................................................................... 5-5
5.10
T1- Channels 3-16 Connector ......................................................................................................................... 5-6
5.11
USB ................................................................................................................................................................... 5-8
5.12
Voice Order Wire ............................................................................................................................................ 5-9
5.13
Data Order Wire.............................................................................................................................................. 5-9
6.1
APPENDIX .............................................................................................................................................6-1
Abbreviations & Acronyms ............................................................................................................................ 6-1
MDS 5800 II
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 1-2.
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.
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 present 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.
User Reference and Installation Manual
1-2
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 fixed mount antenna, for use on a permanent outdoor structure.
The device 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:
SMPE = PG/4πrmin2 = EIRP/4πrmin2
which is solved for the minimum separation distance
rmin = (PG/4πSMPE)1/2 = (EIRP/4πSMPE)1/2
where P = power input to the antenna (mW), EIRP = Equivalent (effective) isotropic
radiated power, S = maximum permissible exposure (mW/cm2), G = numeric gain of the
antenna relative to an isotropic radiator, and rmin is the minimum separation distance to
the center of radiation (cm). The resulting separation distances are dependent on
frequency band.
Frequency Band
UNII Band (nominal frequency = 5.25 GHz)
ISM Band (nominal frequency = 5.725 GHz)
•
•
•
Minimum Distance (cm)
54
285
The device 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 may not cause harmful interference.
The device must accept interference received, including interference that may cause
undesired operation.
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.
MDS 5800 II
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 5800 II 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 5800 II includes a Software Defined Indoor UnitTM (SDIDUTM) and outdoor unit (ODU).
The SDIDUTM is a product and trademark of CarrierComm.
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 5800 II 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 5.15 to 5.35 GHz, which is generically
referred to as 5.3 GHz. The MDS 5800 II 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.
User Reference and Installation Manual
•
2-2
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 5800 II radio is a cost effective alternative to leased lines with carrierclass quality of performance. The MDS 5800 II 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 5800 II 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 5800 II is composed of a Software Defined Indoor UnitTM (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 SDIDUTM 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
(SDIDUTM) with a cable connecting to an Outdoor Unit (ODU) with an external antenna.
Figure 2-1. MDS 5800 II SDIDUTM /ODU Architecture
Table 2-1 lists key features that MDS 5800 II technology offers to those involved in the design,
deployment and support of broadband fixed wireless networks.
MDS 5800 II
User Reference and Installation Manual
2-3
Table 2-1 Key Benefits and Advantages of MDS 5800 II Radios
Benefits
Advantages to Providers/Customers
Reference
Wireless license-exempt system
ISM bands do not require expensive
license band fees or incur licensing delays.
Fast return on investment.
2.2 –2.4
Lower total cost of total ownership.
Wireless connectivity supplements existing
cable (Ethernet).
Media diversity avoids single points of
failure.
Easy to install units
Straightforward modular system enables
fast deployment and activation.
Fast return on investment.
3.4
No monthly leased line fees.
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.
Increases available bandwidth of network.
2.2– 2.5
Allows customer full use of revenuegenerating payload channel.
Up to 16 T1/E1 wayside channels supports
extension of PBX connectivity between
buildings without additional leased-line
costs.
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 5800 II units or more rings
without interruption of service.
A separate management channel allows
MDS 5800 II
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.
2.4– 2.6, 3.7
User Reference and Installation Manual
2-4
Benefits
Advantages to Providers/Customers
Reference
for a dedicated maintenance ring with
connections to each MDS 5800 II Digital
Radio on the ring.
Adaptive Power Control
Automatically adjusts transmit power in
discrete increments in response to RF
interference.
Enables dense deployment.
Simplifies deployment
management.
2.5,2.7
and
network
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.
Simplifies management of radio network
and minimizes resources as entire network
can be centrally managed out of any
location.
2.7,2.9,3.7
Simplifies troubleshooting of single radios,
links, or entire networks.
Simplifies network upgrades with remote
software upgrades.
Allows for mass deployment.
2.3 System Features
Selectable Rates and Interfaces
Up to 16 x E1/T1 (wayside channels)
100BaseTX/Ethernet: Scalable 5-100 Mbps
DS-3/E-3/STS-1 (option; consult factory for availability)
Support for multiple configurations
1+0, 1+1 protection/diversity
Hot Standby
East/West Repeater (2 + 0)
Selectable Spectral Efficiency of 0.8 to 6.25 bits/Hz (including FEC and spectral shaping
effects)
QPSK, 16 – 64 QAM Modulation
MDS 5800 II
User Reference and Installation Manual
2-5
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
24 dBm at 5.3 GHz
Receive Sensitivity: -81 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 5800 II-100 and
MDS 5800 II-50 Ethernet models (Consult factory for availability)
2.4 Physical Description
The following section details the physical features of the MDS 5800 II digital radios
•
Model types
•
Front and rear panel configurations
•
LED descriptions
2.4.1 Model Types
Table 2-2 lists the MDS 5800 II digital radios according to model number and associated capabilities of
throughput, data interface, and wayside channel.
Table 2-3 lists the ODU model numbers.
MDS 5800 II
User Reference and Installation Manual
2-6
Table 2-2 MDS 5800 II SDIDUTM Model Types
PRODUCT
NAME
MODEL
NUMBER
FULL DUPLEX
THROUGHPUT
DATA INTERFACE
WAYSIDE
MDS 5800 II
5800MMVE
100 Mbps Aggregate
100 BaseTX
Two T1/E1s
100 BaseTX
Two T1/E1s
1-16xE1/T1
Scalable
Ethernet
50
(50 Mbps full duplex)
MDS 5800 II
5800MMCE
100
200 Mbps Aggregate
(100 Mbps full duplex)
MDS 5800 II
5800MMTE
160
68 Mbps Aggregate
(34 Mbps full duplex)
Table 2-3 MDS 5800 II ODU Model Types
PRODUCT NAME
MODEL NUMBER
ANTENNA
MDS 5800 II
ODU5800MIDML
Integrated antenna
MDS 5800 II
ODU5800MEDML
External antenna required
MDS 5300 II
ODU5300MIDML
Integrated antenna
MDS 5300 II
ODU5300MEDML
External antenna required
2.4.2 Optional Equipment
The following items are also available:
•
AC/DC power supply
•
Data Encryption
•
Upgrade 50Mbps Ethernet systems to 100Mbps capability
Please consult the factory for more information.
2.4.3 Front Panel Indicators
All models of the MDS 5800 II support a variety of front panel configurations that are dependent
on the network interface and capacity configurations.
MDS 5800 II
User Reference and Installation Manual
2-7
Figure 2-2 provides an example of the MDS 5800 II-100 1+0 configuration and the associated
LEDs displayed on the SDIDUTM front panel.
Figure 2-2. MDS 5800 II LEDs: SDIDUTM Front Panel Configuration for MDS 5800 II, 1+0
Configuration
2.4.4 Front Panel Connections
Please refer to the Figure 2-3 for an example of a MDS 5800 II SDIDUTM front panel followed by a
descriptive text of the connections.
Figure 2-3. MDS 5800 II, 1+1 Protection: SDIDUTM Front Panel Connections
The recommended maximum length for all cables to terminal equipment is a maximum of 3
meters. The exception to this recommendation is the length of the ODU/SDIDUTM Interconnect
cable, which connects the Outdoor Unit to the Indoor Unit.
MDS 5800 II
User Reference and Installation Manual
Power Supply Input
DC Input
-48 VDC
-48v (Isolated Input); 2-pin captive power connector. The MDS
5800 II 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 SDIDUTM 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 SDIDUTM.
A mating power cable connector is supplied with the MDS
5800 II SDIDUTM. 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 SDIDUTM supplies the ODU with all required power via the
ODU/SDIDUTM Interconnect cable. The MDS 5800 II SDIDUTM
does not have a power on/off switch. When DC power is
connected to the SDIDUTM, 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.
MDS 5800 II
2-8
User Reference and Installation Manual
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, optional.
Voice Orderwire Connector
Voice
Orderwire
Call
Call button to alert operator at link-partner SDIDUTM of
incoming Voice-Orderwire call.
Voice
Orderwire
RJ-11 modular port connector for voice orderwire interface.
NMS 10/100 Network Management System Connections
10/100 LOC
10/100Base-TX RJ-45 modular local port connector for access
to the Network Management System (SNMP) and GUI.
10/100 CPT
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
100Base-TX
LOC
100Base-TX RJ-45 modular port connector for the local Fast
Ethernet interface.
100Base-TX
CPT
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
MDS 5800 II
2-9
User Reference and Installation Manual
2-10
2.5 System Description
The overall digital radio architecture consists of a single 1RU rack mount Software Defined Indoor
UnitTM (SDIDUTM) with a cable connecting to an Outdoor Unit (ODU) with an external antenna.
The ODU is available with 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 SDIDUTM
/ODU architecture is 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.
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 SDIDUTM 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.
MDS 5800 II
User Reference and Installation Manual
2-11
IDU
IDU
CONTROLLER
CPU
RCH Serial
SNMP 2x
100Base-Tx
Switch
2x 100 Mbps
User 2x
100Base-Tx
Switch
16x 1.544/2.048
Mbps
16 T1/E1
2x 100 Mbps
Modem Control
Telemetry
Serial
East/Primary Modem
MODEM/
FEC ASIC
Digital
IF
Multiplexed
IF
Quad
Mux
-48Vdc
64 kbps
Voice
West/Secondary Modem
Standard I/O Cards
Optional I/O Cards
(Small Slot)
155.52 Mbps
4x44.736/34.368/
51.84 Mbps
MODEM/
FEC ASIC
FRAMER
STM-1/OC3
Digital
IF
DS-3/ES/
STS-1
2xSTM-1/
OC3
4x44.736/34.368/
51.84 Mbps
4xDS3/ES/
STS1
Multiplexed
IF
-48Vdc
Optional I/O Cards
(Large Slot)
2x 155.52 Mbps
Quad
Mux
Primary Power
Supply
-48Vdc
Secondary Power
Supply
-48Vdc
Future
ODU
Vertical
Antenna
350
MHz
Transfer
Switch
Duplexer
Transmitter
Up-Converter
TNC
N-type
5.3/
5.8
GHz
Quad
Mux
Receiver
140
MHz
-48Vdc
5/10
MHz
Diversity
Switch
Down-Converter
DC/DC
Converters
External
Antenna
+10Vdc
+5Vdc
+3Vdc
-5Vdc
Commlink
& Processor
Internal/
Horizontal
Antenna
BNC
RSL
(Received
Signal Level)
Voltage
Figure 2-4. MDS 5800 II System Block Diagram
The SDIDUTM interfaces with the ODU to receive and provide modulated transmit and receive
waveforms. The SDIDUTM interfaces provide Fast Ethernet 100Base-T (MDS 5800 II-100)
connections to the network. Contact factory for availability of SONET OC-3 (MDS 5800 II-155)
connections. In addition, one (SONET model) or two (Ethernet model) T1 channels are provided
for PBX extension. SNMP is provided on 10/100BaseT ports.
MDS 5800 II
User Reference and Installation Manual
2-12
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. Table 2-4 summarizes the
TCM/convolutional code rates for each modulation type supported by the MDS 5800 II.
Table 2-4. MDS 5800 II 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 SDIDUTM 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 SDIDUTM architecture is flexible and allows for the addition of other I/O types in the
future.
•
Switch/Framing – The SDIDUTM 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 SDIDUTM includes a Network Processor that performs SNMP and
Network Management functions.
•
Modem/IF – The SDIDUTM 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 SDIDUTM 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
SDIDUTM interfaces with the ODU to receive and provide modulated transmit and receive
waveforms.
MDS 5800 II
User Reference and Installation Manual
2-13
The 64-QAM Modem performs the modulation and demodulation of the payload/wayside/SNMP
data and forward error correction using advanced modulation and coding techniques. Using alldigital 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).
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 SDIDUTM supports Scalable Ethernet data rates, such as 25 or 50 Mbps via the
100BaseT data interface port. The SDIDUTM 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 OAM&P.
The CPU also
communicates with other functions within the SDIDUTM for configuration, control, and status
monitoring. The CPU passes appropriate status information to the SDIDUTM front panel display.
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 5800 II 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 Figure 2-5). This architecture lets providers
deliver high bandwidth with high availability to their customers.
MDS 5800 II
User Reference and Installation Manual
2-14
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 5800 II 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 5800 II 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 Figure 2-6.
MDS 5800 II
User Reference and Installation Manual
2-15
Figure 2-6. Consecutive Point Network
2.7 Network Management
All of the MDS 5800 II parameters are accessible in three ways:
1. Using a standard web-browser via HTTP top access the built in webserver.
2. Via SNMP using the fully featured MIB, allowing for automation of data collection and
network management.
3. Via a command line client accessible from a terminal client connected to the serial port, or
telnet over the NMS Ethernet.
Control of the MDS 5800 II is supported as follows:
MDS 5800 II
User Reference and Installation Manual
•
2-16
Network Management options described in Section 2.9.
2.8 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.
Traditional power management techniques such as Constant Transmit Power Control (CTPC)
and Automatic Transmit Power Control (ATPC) transmit at a high power level to overcome the
effects of fading and interference. However, these techniques continue to operate at a higher
power level than needed to maintain the link in clear weather. Because transmit power remains
high when the weather clears, the level of system interference increases.
Radios operating at high transmit power will interfere with other radios, even if the interfering
source is miles away from the victim. High interference levels can degrade signal quality to the
point that wireless radio links become unreliable and network availability suffers. The traditional
solution to system interference is to increase the distance between radios. However, the resulting
sparse deployment model is inappropriate for metropolitan areas.
In response to the need for a high-density deployment model the MDS 5800 II use a unique
power control technique called AdTPC. AdTPC enables MDS 5800 II units to transmit at the
minimum power level necessary to maintain a link regardless of the prevailing weather and
interference conditions. The MDS 5800 II is designed and manufactured to not exceed the +30
dBm maximum power allowed. The purpose of power management is to minimize transmit power
level when lower power levels are sufficient. AdTPC also extends the concept of power
management by controlling not only the power (dBm) of the RF signal, but its quality (signal-tonoise ratio) as well.
In contrast to ATPC, the AdTPC technique dynamically adjusts the output power based on both
the actual strength and quality of the signal. Networked MDS 5800 II units constantly monitor
receive power and maintain 10-12 BER performance under varying interference and climate
conditions. Each MDS 5800 II unit can detect when there is a degradation in the received signal
level of quality and adjust the transmit power level of the far-end MDS 5800 II unit to correct for it.
AdTPC provides maximum power in periods of heavy interference and fading and minimum power
when conditions are clear. Minimal transmit power reduces potential for co-channel and adjacent
channel interference with other RF devices in the service area, thereby ensuring maximum
frequency re-use. The resulting benefit is that operators are able to deploy more MDS 5800 II
units in a smaller area.
MDS 5800 II
User Reference and Installation Manual
2-17
2.9 MDS 5800 II Software and Network
Management
All of the MDS 5800 II parameters are accessible through a Graphical User Interface (GUI)
installed on every SDIDUTM. To access this the SDIDUTM needs to be connected to a computer
with a web browser installed. Directing the browser to the IP address of the SDIDUTM will start
the GUI. More information about the GUI is available in the User Interface Manual.
2.10
1+1 Protection
The MDS 5800 II supports 1+1 protection as an option for a critical link. In this configuration,
protection is provided in a single 1 RU chassis. The SDIDUTM contains two power supplies and
two modems. 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 diversity and non-diversity. In diversity mode, the
link between each pair of modems is the same, as shown in Figure 2-7, providing complete
redundancy. This arrangement requires bandwidth for both links and non-interference between
the links, but it provides hitless receive and transmit switching.
Connected to
west modem
Connected to
west modem
Connected to
east modem
Connected to
east modem
Figure 2-7. 1+1 protection in diversity mode
Figure 2-8 shows operation in non-diversity mode. In this mode, one ODU at each location
transmits to both two ODUs at the other location. This mode does not require the extra
bandwidth or interference protection of diversity mode. It provides hitless receive switching and
hot standby. The SDIDUTM automatically switches transmit ODU upon appropriate ODU alarm or
ODU interface error, minimizing transmit outage time.
MDS 5800 II
User Reference and Installation Manual
2-18
Connected to
west modem
Connected to
west modem
Connected to
east modem
Connected to
east modem
Figure 2-8. 1+1 protection in non-diversity mode
2.11
2 + 0 (East-West) Configuration
The MDS 5800 II supports a 2+0, or east-west, configuration that allows a consecutive point
architecture to be achieved with only a single 1 RU chassis at each location. In this configuration
the SDIDUTM contains two power supplies and two modems. One modem is referred to as the
west modem and the other as the east modem. The SDIDUTM is connected to two ODUs, one
broadcasting/receiving in one directing of the ring architecture and the other
broadcasting/receiving in the other as shown in
MDS 5800 II
User Reference and Installation Manual
Connected to
east modem
2-19
Connected to
west modem
Connected to
west modem
Connected to
west modem
Connected to
east modem
Connected to
east modem
Connected to
east modem
MDS 5800 II
Connected to
west modem
3 Installation
3.1 Unpacking
The following is a list of possible included items.
Description
Quantity
Digital Radio SDIDUTM (1RU chassis)
ODU (with hardware)
Manual (or Soft copy on a CD)
ODU
SDIDUTM
Figure 3-1. MDS 5800 II Components
Be sure to retain the original boxes and packing material in case of return shipping. Inspect all
items for damage and/or loose parts. Contact the shipping company immediately if anything
appears damaged. If any of the listed parts are missing, call the distributor or the factory
immediately to resolve the problem.
User Reference and Installation Manual
3-2
3.2 Notices
CAUTION
DO NOT OPERATE EXTERNAL ANTENNA ODU UNITS WITHOUT AN ANTENNA,
ATTENUATOR, OR LOAD CONNECTED TO THE ANTENNA PORT. DAMAGE MAY OCCUR
TO THE TRANSMITTER DUE TO EXCESSIVE REFLECTED RF ENERGY.
ALWAYS ATTENUATE THE SIGNAL INTO THE RECEIVER ANTENNA PORT TO LESS THAN
–20 dBm. THIS WILL PREVENT OVERLOAD AND POSSIBLE DAMAGE TO THE RECEIVER
MODULE.
WARNING
HIGH VOLTAGE IS PRESENT INSIDE THE ODU and SDIDUTM WHEN THE UNIT IS
PLUGGED IN. TO PREVENT ELECTRICAL SHOCK, UNPLUG THE POWER CABLE
BEFORE SERVICING. UNIT SHOULD BE SERVICED BY QUALIFIED PERSONNEL ONLY.
3.3 PRE-INSTALLATION NOTES
It may be useful to gain familiarity with the MDS 5800 II via back-to-back bench testing prior to
final installation. We highly recommend installation of lightning protectors on the ODU/IDU
Interconnect Cable to prevent line surges from damaging expensive components.
Back-to-back bench testing prior to final installation is highly recommended in order to gain
familiarity with the product. The following additional equipment is required for back-to-back
testing:
•
Low-loss cables, N-male connectors on ODU interfaces.
•
Four Inline RF attenuators, 40 dB each (or replace two with single 80 dB attenuator), rated for
ODU frequency.
The SDIDUTM and ODUs must be configured in an operational configuration and set-up as shown
in Figure 3-2. When equipment is connected in operational configuration, no errors should be
reported on the front panel.
MDS 5800 II
User Reference and Installation Manual
3-3
Ant. Port
Ant. Port
ODU - 1
- 40 dB
- 40 dB
ODU - 2
To IDU
SDIDUTM - 1
SDIDUTM - 2
Figure 3-2. MDS 5800 II Back-to-Back Testing Configuration
3.4 Overview of Installation and Testing
Process
The installation and testing process is accomplished by performing a series of separate, yet
interrelated, procedures, each of which is required for the successful implementation of a
production MDS 5800 II network. These procedures are as follows:
•
Site Evaluation: gathering specific information about potential MDS 5800 II installation sites.
•
Cable and Installation: Testing and installing MDS 5800 II ODU cables and optional interface
devices at installation sites.
•
MDS 5800 II ODU Mounting and Alignment: Mounting ODUs to a pole or wall, performing link
alignment and radio frequency (RF) verification.
•
MDS 5800 II Digital Radio Configuration: Using MDS 5800 II Link Manager software to install
network- and site-specific parameters in the radios.
•
MDS 5800 II Digital Radio Testing: Performing cable continuity checks and RF tests for links,
the payload/radio overhead channel, and the management channel.
The following diagram shows where installation and commissioning resides within the MDS 5800
II network deployment life cycle and defines the sequence in which the processes that comprise
installation and commissioning should be performed.
MDS 5800 II
User Reference and Installation Manual
3-4
Network Life Cycle
Customer
Requirements
RF Planning
& Network
Design
Site Selection
& Acquisition
Network
Operation &
Maintenance
Installation &
Commissioning
Network
Upgrade &
Expansion
Perform Site
Evaluation
Mount and Align
ODUs
Install Cables
Configure Digital
Software Defined
IDUTM
PDH
Type of
Network?
SDH
Perform
SDH Network Test
Perform Fast
PDH Network Test
Installation &
Commissioning
Complete
03-01-013b
3.5 Site Evaluation
A site evaluation consists of a series of procedures for gathering specific information about
potential MDS 5800 II locations. This information is critical to the successful design and
deployment of a network.
Site evaluations are required to confirm whether or not a building meets network design
requirements. The main objectives are as follows:
MDS 5800 II
User Reference and Installation Manual
•
•
3-5
Confirm
•
Line of sight for each link
•
MDS 5800 II ODU mounting locations
•
Site equipment locations
•
Cable routes
•
Any other potential RF sources
Prepare site drawings and record site information
3.5.1 Preparing for a Site Evaluation
The following tools are required to perform a site evaluation:
•
RF and network design diagrams (as required)
•
Binoculars
•
Global positioning system (GPS) or range finder
•
Compass
•
Measuring tape and/or wheel
•
Digital camera
•
Area map
•
Aerial photograph (if available)
•
List of potential installation sites (“targeted buildings”)
The following tasks must be completed prior to performing a site evaluation:
•
•
Prepare the initial network design by performing the following:
•
Identify potential buildings by identifying targeted customers (applicable if you’re a service
provider)
•
Identify potential links by selecting buildings based on the high probability of line of sight
Arrange for access with the facility personnel into the buildings, equipment rooms, and
architectural plans to become familiar with the location of all ducts, risers, etc.
MDS 5800 II
User Reference and Installation Manual
3-6
3.5.2 Site Evaluation Process
The following steps must be completed to perform a successful site evaluation. Each step in the
process is detailed in the following subparagraphs:
•
Ensure RF Safety compliance: Ensure that appropriate warning signs are properly placed
and posted at the equipment site or access entry. For a complete list of warnings, refer
the Safety Precautions listed at the beginning of this manual.
•
Ensure Compliance with Laws, Regulations, Codes, and Agreements: Ensure that any
installation performed as a result of the site evaluation is in full compliance with applicable
federal and local laws, regulations, electrical codes, building codes, and fire codes.
•
Establish Radio Line of Sight between MDS 5800 II Radios: The most critical step in
conducting a site evaluation is confirming a clear visual and radio Line of Sight
(LOS) between a near MDS 5800 II Radio and a far MDS 5800 II Radio. If LOS does
not exist, another location must be used.
MDS 5800 II Radios in a link must have a clear view of each other, or visual “line of sight”.
Binoculars may be used evaluate the path from the desired location of the near MDS
5800 II Radio to the desired location of the far MDS 5800 II Radio.
To confirm Line of Sight:
Ensure that no obstructions are close to the transmitting/receiving path. Take into
consideration trees, bridges, construction of new buildings, unexpected aerial traffic,
window washing units, etc.
Ensure that each MDS 5800 II can be mounted in the position required to correctly
align the MDS 5800 II with its link partner.
MDS 5800 II Radios must also have a clear radio line of sight. If a hard object, such as a
mountain ridge or building, is too close to the signal path, it can damage the radio signal
or reduce its strength. This happens even though the obstacle does not obscure the
direct, visual line of sight. The Fresnel zone for a radio beam is an elliptical area
immediately surrounding the visual path. It varies in thickness depending on the length of
the signal path and the frequency of the signal. The necessary clearance for the Fresnel
zone can be calculated, and it must be taken into account when designing a wireless
links.
As shown in the picture above, when a hard object protrudes into the signal path within
the Fresnel zone, knife-edge diffraction can deflect part of the signal and cause it to reach
the receiving antenna slightly later than the direct signal. Since these deflected signals
are out of phase with the direct signal, they can reduce its power or cancel it out
altogether. If trees or other 'soft' objects protrude into the Fresnel zone, they can
MDS 5800 II
User Reference and Installation Manual
3-7
attenuate (reduced the strength of) a passing signal. In short, the fact that you can see a
location does not mean that you can establish a quality radio link to that location.
Microwave Data Systems provides a link planner spreadsheet that calculates the Fresnel
ratio and helps determine link feasibility. Contact your technical support representative
for a copy of the spreadsheet.
Determine MDS 5800 II ODU Mounting Requirements: MDS 5800 II ODUs can be
mounted on an antenna mast, brick, masonry or wall. Refer to detailed installation
sections.
•
Determine MDS 5800 II SDIDUTM Installation Location: MDS 5800 II SDIDUsTM can be
installed tabletop or cabinet, wall mount, or rack mount. The site must provide DC power
or an optional AC/DC converter may be used. Refer to detailed installation sections.
•
Document Potential Sources of Co-location Interference: When MDS 5800 II ODUs are
located on a roof or pole with other transmitters and receivers, an interference analysis
may be required to determine and resolve potential interference issues. The interference
analysis needs to be performed by an RF engineer. The specific information required for
each transmitter and receiver includes the following:
•
Transmitting and/or receiving frequency
Type of antenna
Distance from MDS 5800 II ODU (horizontal and vertical)
Polarity (horizontal or vertical)
Transmit power level
Antenna direction
Measure the Link Distance: The two ways to measure link distance are as follows:
GPS: record the latitude and longitude for the near and far MDS 5800 II ODU sites
and calculate the link distance. Record the mapping datum used by the GPS unit and
ensure the same mapping datum is used for all site evaluations in a given network.
Range finder: measure the link distance (imperial or metric units may be used).
Once the link distance has been measured, verify that the link distance meets the
availability requirements of the link. Microwave Data Systems has created a spreadsheet
tool that calculates the link availability based on the details of the link. The Microsoft Excel
spreadsheet is available on the software distribution CD and is shown on the following
page. The following parameters should be entered (items in yellow):
•
Operating Frequency: Enter 5800 or 5300
•
Transmit Antenna Gain: Enter 23 for the internal antenna or enter the gain of the external
antenna if used.
•
Transmit Output Power: Selectable between -8 to – +23dB (5.8 GHz) and –18 to +13 (5.3
GHz) in 1 dB steps.
MDS 5800 II
User Reference and Installation Manual
3-8
•
Receive Antenna Gain: Enter 23 for the internal antenna or enter the gain of the external
antenna if used.
•
Link Distance: Enter distance in miles or kilometers (must select the correct units: miles or
kilometers)
•
Fresnel Clearance Ratio: This is a factor indicating the radio line of sight. A clear radio
line of site has a fresnel clearance ratio of +0.60. As the curvature of the earth or other
obstacles degrade the radio line of sight, the ratio can drop to –1. A separate spreadsheet
is provided to calculate the appropriate ratio. In this spreadsheet the path length, tower
heights and heights of any obstructions or ridges in the path of the link are entered.
•
Climate Factor: Enter 0.1 for dry, 0.25 for average and 0.5 for humid environments
•
Terrain Factor: Enter 0.25 for mountainous, 1 for average, and 4 for smooth (water)
•
Determine the Length of Interconnect Cable from ODU to SDIDUTM: The primary
consideration for the outdoor interconnect cable from the ODU to SDIDUTM is the distance
and route between the ODU and SDIDUTM. This cable should not exceed 330 feet using
Times Microwave LMR-200 cable. Longer lengths and distances are possible, but require
higher quality cable.
•
ODU/IDU Cable Length: Enter the cable length in feet between the ODU and IDU.
Maximum cable lengths are listed in Table 3-1.
Table 3-1. Maximum cable lengths
Loss at (dB/100 m)
Cable Type
140 MHz
350 MHz
Maximum
Length*
LMR-200
12.6
20.1
100 m
LMR-300
7.6
12.1
165 m
LMR-400
4.9
7.8
256 m
RG-214
13.1
153 m
Belden 7808
8.6
14
143 m
* Does not account for connector loss.
The link availability, dispersive fade margin and expected signal strength readings are calculated
based on the entered parameters. Maximum link distances based on the antenna and transmitter
power settings are also displayed.
MDS 5800 II
User Reference and Installation Manual
3-9
Path Length (Km)
TX Tower Height (m)
RX Tower Height (m)
Frequency (MHz)
Calculated Fresnel Clearance Ratio
15
30
20
5800
0.05
MDS 5800 II Link Planner: Fresnel Zone Clearance
Distance
from TX
(Km)
Optical LOS
Height (m)
Earth
1st Fresnel 1st Fresnel Radio LOS (60%
Zone
Zone Height Fresnel Clearance) Curvature1
Radius (m)
(m)
Zone Height (m)
(m)
Obstruction
Height (m)
Total Earth
Terrain
Height (m)
Fresnel
Clearance
Ratio
0.0
30.0
0.0
30.0
30.0
0.0
0.0
0.0
0.4
29.8
4.3
25.4
27.1
0.3
0.0
0.3
0.8
29.5
6.1
23.4
25.9
0.6
0.0
0.6
1.1
29.3
7.3
21.9
24.9
0.9
0.0
0.9
1.5
29.0
8.3
20.7
24.0
1.2
0.0
1.2
1.9
28.8
9.2
19.5
23.2
1.4
0.0
1.4
2.3
28.5
9.9
18.6
22.5
1.7
0.0
1.7
2.6
28.3
10.6
17.7
21.9
1.9
20.0
21.9
3.0
28.0
11.1
16.9
21.3
2.1
10.0
12.1
3.4
27.8
11.6
16.1
20.8
2.3
12.3
10.0
3.8
27.5
12.0
15.5
20.3
2.5
23.0
25.5
4.1
27.3
12.4
14.8
19.8
2.6
24.0
26.6
4.5
27.0
12.7
14.3
19.4
2.8
0.0
2.8
4.9
26.8
13.0
13.7
18.9
2.9
0.0
2.9
5.3
26.5
13.3
13.2
18.5
3.0
0.0
3.0
5.6
26.3
13.5
12.8
18.2
3.1
0.0
3.1
6.0
26.0
13.6
12.4
17.8
3.2
5.0
8.2
6.4
25.8
13.8
12.0
17.5
3.2
0.0
3.2
6.8
25.5
13.8
11.7
17.2
3.3
0.0
3.3
7.1
25.3
13.9
11.4
16.9
3.3
0.0
3.3
7.5
25.0
13.9
11.1
16.7
3.3
0.0
3.3
7.9
24.8
13.9
10.9
16.4
3.3
0.0
3.3
8.3
24.5
13.8
10.7
16.2
3.3
0.0
3.3
8.6
24.3
13.8
10.5
16.0
3.2
0.0
3.2
9.0
24.0
13.6
10.4
15.8
3.2
0.0
3.2
9.4
23.8
13.5
10.3
15.7
3.1
0.0
3.1
9.8
23.5
13.3
10.2
15.5
3.0
7.0
10.0
10.1
23.3
13.0
10.2
15.4
2.9
0.0
2.9
10.5
23.0
12.7
10.3
15.4
2.8
0.0
2.8
10.9
22.8
12.4
10.3
15.3
2.6
0.0
2.6
11.3
22.5
12.0
10.5
15.3
2.5
0.0
2.5
11.6
22.3
11.6
10.6
15.3
2.3
0.0
2.3
12.0
22.0
11.1
10.9
15.3
2.1
0.0
2.1
12.4
21.8
10.6
11.2
15.4
1.9
0.0
1.9
12.8
21.5
9.9
11.6
15.5
1.7
0.0
1.7
13.1
21.3
9.2
12.0
15.7
1.4
0.0
1.4
13.5
21.0
8.3
12.7
16.0
1.2
0.0
1.2
13.9
20.8
7.3
13.4
16.4
0.9
0.0
0.9
14.3
20.5
6.1
14.4
16.9
0.6
0.0
0.6
14.6
20.3
4.3
15.9
17.6
0.3
0.0
0.3
15.0
20.0
0.0
20.0
20.0
0.0
0.0
0.0
Note1: Earth Curvature is based on a spherical Earth model with a nominal radius of 6371Km and a typical K-factor of 1.33.
Optical LOS
1st Fresnel Zone
Radio LOS
6.77
4.76
3.87
3.33
2.97
2.70
0.60
1.43
1.33
0.17
0.05
1.90
1.83
1.77
1.72
1.31
1.64
1.61
1.58
1.56
1.54
1.53
1.53
1.53
1.53
1.02
1.56
1.59
1.62
1.66
1.72
1.79
1.88
1.99
2.15
2.37
2.71
3.28
4.59
Earth Curvature
Obstructions
35
30
Height (m)
25
20
15
10
Distance (Km)
MDS 5800 II
10
11
12
12
13
14
15
9.
9.
8.
7.
6.
6.
5.
4.
3.
3.
2.
1.
0.
0.
User Reference and Installation Manual
3-10
•
Select the Grounding Location for both the MDS 5800 II ODU and SDIDUTM: The MDS
5800 II must be properly grounded in order to protect it and the structure it is installed on
from lightning damage. This requires
Grounding all ODUs as specified by supplier
Grounding all SDIDUTM to the rack.
•
Confirm the Presence of DC Power for the MDS 5800 II SDIDUTM.
•
Ensure Building Aesthetics: Ensure that the ODU can be mounted so that it is
aesthetically pleasing to the environment and to the property owner. Aesthetics must be
approved by the property owner and the network engineer.
•
Take Site Photographs
•
Sketch the Site
3.5.3 Critical System Calculations
3.5.3.1
Received Signal Level (RSL) and Link Budget
The received signal level (RSL) can be estimated using the following formula:
RSL (dBm) = PTX + GTX ANT – LPath + GRX ANT
Where: PTX is the transmitter output power (in dBm)
GTX ANT is the gain of the transmit antenna (in dB), 23 dBi for ODU’s internal antenna
GRX ANT is the gain of the receive antenna (in dB), 23 dBi for ODU’s internal antenna
LPath is the Path loss, defined by:
LP (dB) = 36.6 + 20log10(F*D)
Where: F is the Frequency in MHz (5800 or 5300), D is the Distance of path in miles
This link budget is very important in determining any potential problems during installation.
expected RSL and measured RSL should be close (+/- 5 to 10 dB)
3.5.3.2
The
Fade Margin Calculation
The fade margin is the difference between the actual received signal and the MDS 5800 II
Radio’s threshold for the modulation mode selected. The fade margin can be used to determine
availability and should be at least 10 dB.
MDS 5800 II
User Reference and Installation Manual
3.5.3.3
3-11
Availability Calculation
Availability of the microwave path is a prediction of the percent of time that the link will operate
without producing an excessive BER due to multipath fading. Availability is affected by the
following:
•
Path length
•
Fade margin
•
Frequency
•
Terrain (smooth, average, mountainous, valleys)
•
Climate (dry, temperate, hot, humid)
Depending on the type of traffic carried over the link and the overall network design redundancy,
fade margin should be included to support the desired availability rate. Critical data and voice
may require a very high availability rate (99.999% or 5.3 minutes of predicted outage per year).
To improve availability, the fade margin can be increased by shortening the path length,
transmitting at a higher power level, or by using higher gain antennas.
Availability can be computed using the following formula, which is known as the Vigants Barnett
Method.
Availability = 100 × (1 – P)
P = 2.5 × 10-9 × C × F × D3× 10(-FM/10)
Where F is the frequency in MHz (5300 or 5800)
D is the distance in miles
FM is the fade margin in dB
C is the climate/terrain factor as defined below:
Humid/Over Water: C = 4 (worst case channel)
Average Conditions: C = 1
Dry/Mountains: C = 0.25 (best case channel)
Example: Assume 21 dB fade margin, over 5 miles with average climate/terrain, at 5.8 GHz. The
availability comes out to be 99.9986. This corresponds to the link being unavailable for 7.6
minutes per year.
3.5.3.4
Frequency Plan Determination
When configuring MDS 5800 II units in a point-to-point or consecutive point configuration, careful
engineering of the MDS 5800 II frequency plans and antenna locations should be performed in
order to minimize potential interference between nearby radios. Nearby radios should operate on
different frequencies, transmitting in the same band (high side or low side). When designing multiradio configurations, antenna size, antenna polarization, and antenna location are critical.
MDS 5800 II
User Reference and Installation Manual
3-12
The frequency plan must be selected based on desired data rate and expected link conditions. In
a high interference environment or with lower gain antennas, higher bandwidth, more robust
modulation formats must be employed. The available frequency plans are illustrated in Figure
3-3 and Figure 3-4.
Additional frequency plans are available for co-existence with other 5.8GHz equipment or for
backhaul purposes. These plans use the frequencies at the ends of the ISM band and provide a
contiguous available frequency space in the center of the band for other equipment. The
backhaul frequency plans are illustrated in Figure 3-5.
The channel assignments shown in the figures correspond to the channel numbers entered via
the graphical user interface (GUI) or SNMP.
1 Channel Operation, 30MHz Bandwidth
A Tx
B Rx
A Rx
B Tx
Diplexer
F, MHz
5725
5750
2A Tx
2B Rx
1A Tx
1B Rx
Diplexer
5850
5825
2 Channel Operation, 25MHz Bandwidth
1A Rx
1B Tx
2A Rx
2B Tx
5812
5837
F, MHz
5725
5737
5762
5850
3 Channel Operation, 16.7MHz Bandwidth
1A Tx
1B Rx
2A Tx
2B Rx
3A Tx
3B Rx
Diplexer
1A Rx
1B Tx
2A Rx
2B Tx
3A Rx
3B Tx
F, MHz
5725
5733
5750
5808
5766
5825
5841
5850
4 Channel Operation, 12.5MHz Bandwidth
1A Tx
1B Rx
2A Tx
2B Rx
3A Tx
3B Rx
4A Tx
4B Rx
5731
5743
5756
5768
Diplexer
1A Rx
1B Tx
2A Rx
2B Tx
3A Rx
3B Tx
4A Rx
4B Tx
5806
5818
5831
5843
F, MHz
5725
Figure 3-3. MDS 5800 II Channel 5.8 GHz Frequency Plan
MDS 5800 II
5850
User Reference and Installation Manual
3-13
1 Channel Operation, 30MHz Bandwidth
A Tx
B Rx
A Rx
B Tx
Diplexer
F, MHz
5270
5250
2 Channel Operation, 20MHz Bandwidth
1A Tx
1B Rx
2A Tx
2B Rx
5330
1A Rx
1B Tx
Diplexer
5350
2A Rx
2B Tx
F, MHz
5250
5320
5280
5260
5340
5350
3 Channel Operation, 13.3MHz Bandwidth
1A Tx
1B Rx
3A Tx
3B Rx
2A Tx
2B Rx
Diplexer
1A Rx
1B Tx
3A Rx
3B Tx
2A Rx
2B Tx
F, MHz
5250
5257
5317
5283
5270
5343
5330
5350
Figure 3-4. MDS 5800 II Channel 5.3 GHz Frequency Plan
2 Channel Operation
3A Tx
3B Rx
3A R x
3B Tx
F, MH z
5725
5812
5762
5737
5837
5850
3 Channel Operation
4A Tx
4B Rx
5A R x
5B Tx
5A Tx
5B Rx
4A R x
4B Tx
F, MH z
5725
5733
5750
5808
5766
5825
5841
5850
4 Channel Operation
5A Tx
5B Rx
6A Tx
6B Rx
6A R x
6B Tx
5A R x
5B Tx
5831
5843
F, MH z
5731
5725
5743
5756
5768
5806
5818
5850
Figure 3-5. MDS 5800 II Backhaul Frequency Plans
3.5.3.5
Antenna Planning
The ODU comes with a built in 23 dBi gain antenna.
performance for most applications.
MDS 5800 II
This should provide adequate link
User Reference and Installation Manual
3-14
Larger antennas have the advantage of providing narrower beamwidths and high isotropic gain,
which yields better link performance (higher fade margin, better availability), and improves
immunity to spatial interference (due to the smaller beamwidths). However, larger antennas are
more costly to purchase and install than smaller antennas and in some cases, they require
special equipment for installation due to narrower beamwidths. They are also more easily
affected by wind.
Only directional antennas can be used with MDS 5800 II radios. Consult factory for antenna
manufacturer options.
The ISM band does not restrict antenna gain or EIRP, therefore there is no need to back off
transmit power due to excessive antenna gain.
1. Select where the cable will enter the building from the outside.
2. Determine the length of cable required. Allow three extra feet on each end to allow for strain
relief, as well as any bends and turns.
3.5.4 Documenting a Site Evaluation
Use the site evaluation form provided on the following pages to document the results of your site
evaluation. Optimally, this complete site form would be stored with the IDU for future reference.
MDS 5800 II
User Reference and Installation Manual
3-15
Site Evaluation Form
Address
Site Engineer
Contact Person
Phone
Site No
Site Agent
Site Type
ODU Roof Location
Latitude
Longitude
Example
Information
Mapping Datum (ex. NDA27)
ODU
ODU#
Information
Information
Clear Line of Sight
Yes
Mounting Method
Wall or Pole
FCC Compliance
Yes
Collocation
Aesthetics
ODU Azimuth
60 degrees
GPS Reading
80 21' 48"
Roof Requirements
Cable Lengths
Alarm
Interconnect Cable
250 feet
Grounding/Lighting
Instructions
Photographs*
Photo 1
Photo 2
Photo 3
Sketches**
Sketch 1
Sketch 2
Recommendations for Site Photographs and Sketches
*Photographs
**Sketches
Photo 1 - ODU mounting location
Sketch 1- Roof and cable route to entry point
Phone 2 - View from the ODU mounting location to the link partner
Sketch 2 - Details for grounding and lighting protection
Photo 3 - IDU location
Sketch 3 - IDU room and cable routes from entry port
MDS 5800 II
User Reference and Installation Manual
3-16
Site Evaluation
Parameters
Source
Example Information
Tx and/or Rx
Frequency
Colocated
Information
Information
Information
Information
Information
Tx/Rx
2.1 GHz
Distance from ODU
5 feet
Owner
Azimuth
Sprint PCS
210 degrees
Elevation
2 degrees downtilt
Antenna Type
Power
Power
14W
Parameters
Example Information
IDU room Identified
SDIDUTM
Information
PCS
Space for cabinet
Phone line
Yes
Yes
48 VDC available?
Need to install
Yes
Cables
Confirm cables
Take Photo 3
Sketch 3
Front View
Top View
Equipment Cabinet
Batteries
Note
Indoor Space
Equipment Dimensions
MDS 5800 II
Side View
User Reference and Installation Manual
3-17
3.6 Installation of the MDS 5800 II
The following sections provide installation guides for:
•
SDIDUTM Installation
•
ODU Installation
3.6.1 Installing the MDS 5800 II Software Defined IDUTM
The MDS 5800 II SDIDUTM can be installed in the following three options:
1. Table top or cabinet
2. Wall mount
3. Rack mount
The MDS 5800 II SDIDUTM should be:
•
Located where you can easily connect to a power supply and any other equipment used in
your network, such as a router or PC.
•
In a relatively clean, dust-free environment that allows easy access to the rear grounding post
as well as the front panel controls and indicators. Air must be able to pass freely over the
chassis.
•
Accessible for service and troubleshooting.
•
Protected from rain and extremes of temperature (it is designed for indoor use).
3.6.1.1
Installing on a Table Top or Cabinet
The MDS 5800 II SDIDUTM can be placed on a tabletop or cabinet shelf. In order to prevent
possible disruption, it is recommended to use a strap to secure the SDIDUTM.
3.6.1.2
Installing on a Wall
An installation option for the SDIDUTM is mounting the unit to a wall. Consult factory for details.
If the wall mount option is being considered, plan to position the MDS 5800 II SDIDUTM at a
height that allows LEDs, the connectors on the front panel, and the rear grounding post to be
visible at all times and easily accessible. Also, including plastic clamps to support and arrange
the ODU/ SDIDUTM Interconnect Cable should also be considered.
3.6.1.3
Installing in a Rack
To rack-mount the SDIDUTM, use the supplied mounting brackets to secure the chassis to the
rack cabinet. As shown in Figure 3-6, the brackets can be attached at any of four points on the
MDS 5800 II
User Reference and Installation Manual
3-18
sides of the enclosure – front, back, middle facing front, and middle facing back. This flexibility
ensures compatibility with most rack mounting arrangements.
Figure 3-6. MDS 5800 II SDIDUTM Dimensions
3.6.2 Installing the MDS 5800 II ODU
The MDS 5800 II ODU is intended for mounting on either a pole or antenna mast.
Each site must be assessed for the mounting method, location, and height. After defining the
mounting location and height for the MDS 5800 II ODU, re-confirm the line of sight.
3.6.2.1
Installing the Mounting Poles
First install the mounting poles, on which you will mount the MDS 5800 II ODU. It is important to
note the direction in which the ODU will point when installing the mounting pole.
The mounting pole must be mounted in a vertical position. Failure to do so may result in
improper alignment of the ODU. Vertical tilt of the ODU is accomplished from the tilt mounting
bracket.
The mounting pole must be grounded.
Now that you have installed the mounting pole, you are ready to install the MDS 5800 II ODU
onto the mounting poles. Reference Figure 3-7 through Figure 3-10.
MDS 5800 II
User Reference and Installation Manual
3-19
Figure 3-7. Mounting Parts for the MDS 5800 II ODU
1. Remove the pole mount portion of the tilt bracket from the ODU by loosening the middle
bolts and removing the top and bottom bolts on each side.
2. Mount the tilt bracket to the mounting pole using the U-Bolts and nuts. Insert the U-bolts
around the pole and through the holes in the tilt bracket. Install a washer and nut to each
side of the threaded U-bolt and hand tighten. Repeat this step for the second U-bolt.
3. Place the MDS 5800 II ODU on the mating half of the tilt bracket connected by the two
center bolts.
4. Add the remaining four bolts to the tilt bracket but do not tighten until the antenna
alignment is complete (only applies for internal antenna ODUs).
5. Manually point the ODU in the direction of the link partner ODU.
Figure 3-8. MDS 5800 II ODU Rear View
MDS 5800 II
User Reference and Installation Manual
3-20
Figure 3-9. Tilt Bracket
Figure 3-10. MDS 5800 II ODU with Mounted Tilt Bracket
3.6.3 Routing the ODU/ SDIDUTM Interconnect Cable
1. Select where the cable will enter the building from outside.
2. Determine the length of cable required. Allow three extra feet on each end to allow for strain
relief, as well as any bends and turns.
3. Route the cable.
MDS 5800 II
User Reference and Installation Manual
3-21
The SDIDUTM is equipped with TNC female connector on the front of the chassis. Depending on
the ODU type, it will be equipped with either a N-type or TNC female connector at its
interconnecting port. A length of coaxial cable (such as Times Microwave Systems LMR-400,
LMR-300 or LMR-200) fitted with the appropriate N-type or TNC male connectors is required to
connect the ODU to the SDIDUTM. This cable assembly may be supplied in fixed lengths with the
digital radio. Bulk coaxial cable of equivalent specification may also be used, with terminating
connectors applied during cable installation.
Based on an evaluation of the cable routing path, pull the ODU/SDIDUTM Interconnect cable from
one unit to the other, utilizing cable trays, ducts, or conduit as required. Take care that the ODU/
SDIDUTM Interconnect cable is not kinked or damaged in any way during installation. Be sure to
protect the TNC connectors from stress, damage and contamination during installation (do not
pull the cable by the connectors). If multiple ODU/ SDIDUTM Interconnect cables are to be
installed along the same route, the cables should all be pulled at one time. Be sure the installed
cable does not have any bends that exceed the specified cable bend radius. The ODU/ SDIDUTM
Interconnect cable should be adequately supported on horizontal runs and should be restrained
by hangers or ties on vertical runs to reduce stress on the cable. Outside the building, support
and restrain the cable as required by routing and environmental conditions (wind, ice).
The MDS 5800 II ODU/SDIDUTM and interconnection must be properly grounded in order to
protect it and the structure it is installed on from lightning damage. This requires that the ODU,
any mounting pole or mast and any exposed interconnect cable be grounded on the outside of
the structure. The SDIDUTM must be grounded to a rack or structure ground that also has direct
path to earth ground.
The ODU must be directly connected to a ground rod or equivalent earth ground. The ODU/
SDIDUTM interconnect cable should also be grounded at the ODU, where the cable enters the
structure and at intermediate points if the exposed cable run is long (typically at intervals of 100
ft), with the cable manufacturer’s grounding kits. Lightning protection devices used with the
interconnect cable must be appropriate for the transmission of the interconnect signals (DC to
350 MHz).
Provide a sufficient but not excessive length of cable at each end to allow easy connection to the
ODU and SDIDUTM without stress or tension on the cable. Excessive cable length, especially
outdoors, should be avoided to minimize signal attenuation and provide a more robust and
reliable installation. If installing using bulk coaxial cable, terminate the ODU/ SDIDUTM
Interconnect cable at each end with a TNC male connector on the SDIDUTM side and either a Ntype or TNC male connector on the ODU side that is appropriate for the cable type. Use of
connectors, tools and termination procedures specified by the cable manufacturer is
recommended.
Once the cable has been installed but before connection has been made to either unit, a simple
DC continuity test should be made to verify the integrity of the installed cable. A DC continuity
tester or digital multimeter may be used to verify a lack of DC continuity between the cable center
conductor and outer conductor, with the opposite end of the cable unconnected. With a
temporary test lead or shorting adapter connected to one end of the cable, DC continuity should
be verified between the center and outer conductors at the opposite end.
3.6.4 Grounding the System
The MDS 5800 II IDU/ODU System must be properly grounded in order to protect it and the
structure it is installed on from lightning damage. This requires:
MDS 5800 II
User Reference and Installation Manual
3.6.4.1
3-22
Grounding the ODU
1. Place the grounding rod so as to allow for the shortest possible path from the grounding cable
to the ODU.
2. Drive the grounding rod into the ground at least eight inches from the ground surface.
3. Attach a grounding clamp to the grounding rod. You will use this clamp to attach grounding
wires for both the ODU and indoor junction box, reference Figure 3-11.
Figure 3-11 Ground Connections to ODU
4. Connect a ground lug to one end of the grounding wire.
5. Remove one of the lower mounting screws of the mounting pole. Insert a screw through the
grounding lug terminal and re-install it to the mounting pole.
6. Attach the grounding wire to the clamp on the grounding rod. If necessary, use wire staples to
secure the grounding wire to the outside wall.
Install a grounding wire from the junction box to the grounding rod.
MDS 5800 II
User Reference and Installation Manual
3.6.4.2
3-23
Grounding the SDIDUTM
1. Remove the nut and ring lug terminal from the SDIDUTM optional Chassis GND stud (located
on the front panel).
2. The provided ring lug crimp terminal is intended to be used with 18 AWG wire (provided by
the customer). The SDIDUTM should be able to be connected to a system or building
electrical ground point (rack ground or power third-wire ground) with a cable of 36” or less.
3. Crimp the ring lug terminal to one end of the wire to be used as the SDIDUTM ground wire.
Connect the opposite end of the SDIDUTM ground wire to the local source of ground in an
appropriate manner.
4. Place the ring lug of the SDIDUTM ground cable on the SDIDUTM Chassis GND stud.
5. Place the nut on the SDIDUTM Chassis GND stud and tighten appropriately.
3.6.5 Connecting the SDIDUTM to the PC and Power Source
Perform the following steps to ensure the SDIDUTM is powered up and connected to you PC:
1. To connect to the SDIDUTM DC power connector (located on the left front SDIDUTM panel), an
SDIDUTM power cable is required. A mating power cable connector (Phoenix Contact P/N 17
86 83 1) is provided with the MDS 5800 II SDIDUTM for construction of this cable. This
connector has screw clamp terminals that accommodate 24 AWG to 12 AWG wire. The
recommended wire size for construction of power cables under 10 feet in length, supplying
-48 V dc, is 18 AWG. The opposite end of the SDIDUTM power cable should have a
termination appropriate for the power supply being used. The SDIDUTM power cable should
be of sufficient length to avoid tension in the cable and provide a service loop for connection,
but not be of excessive length. Stranded wire should be used over a solid conductor to
reduce tension on the SDIDUTM DC Power connector. Using the supplied power cable
connector, pin 2 (labeled -V) should be connected to the power supply terminal supplying -48
V dc, while pin 1 (labeled RET) should be connected to the power supply return. Refer to
Figure 3-5. Note that pin 1 (RET) of the SDIDUTM DC Power connector is connected to the
SDIDUTM chassis ground internal to the SDIDUTM. Use of a power supply with an
inappropriate ground reference may cause damage to the SDIDUTM and/or the supply.
2. Connect the SDIDUTM power cable to the -48 V dc power supply, and place the voltmeter
probes on the unconnected SDIDUTM end of the power cable, with the positive voltmeter
probe on pin 2 (-V) of the cable connector and the negative probe on pin 1(RET). The
connector screw terminal screw heads may be used as convenient monitor points. Refer to
Figure 3-5.
3. Turn on the –48 V dc supply. Verify that the digital voltmeter reads between -44 V dc and -52
V dc when monitoring the cable points specified above. Adjust the power supply output
voltage and/or change the connections at the power supply to achieve this reading.
4. With the negative voltmeter probe still on pin 1 (RET) of the power cable connector (and the
power supply still on), press the positive voltmeter probe to the SDIDUTM chassis and verify a
potential of zero volts between the SDIDUTM chassis and cable pin 1 (RET). If the measured
potential is not zero, the power supply may be grounded incorrectly and should not be used in
this condition with an SDIDUTM. Note that this measurement assumes that the SDIDUTM is
MDS 5800 II
User Reference and Installation Manual
3-24
installed and properly grounded. If this is not the case, the same measurement can be made
between cable pin 1 (RET) and a convenient ground (such as an ac outlet third-wire ground).
5. Turn the -48 V dc supply off.
6. Plug the SDIDUTM power cable into the SDIDUTM front panel DC Power connector (DC
Input). Place the voltmeter probes on the cable connector screw terminal screw heads as
per step 2 above. Refer to Figure 3-12. Note that the MDS 5800 II SDIDUTM does not have
a power on/off switch. When DC power is connected, the digital radio powers up and is
operational. There can be up to 320 mW of RF power present at the antenna port. The
antenna should be directed safely when power is applied.
7. Turn on the -48 V dc power supply, and verify that the reading on the digital voltmeter is as
specified in step 3 above.
8. Turn the -48 V dc supply off.
9. Connect the SDIDUTM to the laptop computer, using a Cat-5 Ethernet cable or connect the
SDIDUTM to a computer network, using a Cat-5 Ethernet cable. Connect the Ethernet cable
to NMS 1 or 2 connector on the SDIDUTM front panel. Refer to Figure 3-13 for the SDIDUTM
front panel connections.
Figure 3-12. SDIDUTM DC Power Cable Connector
Figure 3-13. MDS 5800 II-SB, 1+1 Protection: SDIDUTM Front Panel Connections
MDS 5800 II
User Reference and Installation Manual
3-25
3.7 MDS 5800 II Quick Start Guide
Configuration of the MDS 5800 II SDIDUTM does not require a connection to the ODU. It is
suggested to configure the SDIDUTM prior to connecting to the ODU.
Each SDIDU has a Graphical User Interface (IDU) installed that can be accessed through a
computer connection. The GUI is described in detail in the XXXX manual. The section below
describes how to get started configuring the SDIDU TM via the GUI.
3.7.1 Materials Required
The following items are needed to configure an SDIDUTM:
•
Power supply (-48 V DC @ 2 Amps) OR optional AC/DC power supply and power cable
•
Digital voltmeter with test leads
•
SDIDUTM Serial Cable
•
Computer with networking capability, consisting of either:
Laptop computer with Windows 98/2000/XP operating system, an Ethernet card with any
necessary adapters and a Cat-5 Ethernet regular or crossover cable
or
Networked computer with Windows 98/2000/XP operating system and an additional
Ethernet cable providing access to the network.
•
Web Browser program with Java environment installed
•
Site engineering folder with site drawings, or equivalent SDIDU configuration information
3.7.2 IDU Configuration Process
Using the site attributes identified in the site assessment or equivalent configuration information,
configure each IDU by completing the following procedures:
Connecting the SDIDUTM to the PC and Power Source
Setting the SDIDUTM IP Address and Network Parameters
Configuring the SDIDUTM
Setting the SDIDUTM Device Information
MDS 5800 II
User Reference and Installation Manual
3-26
3.7.3 Connecting the SDIDUTM to the PC and Power Source
Perform the following steps to ensure the SDIDUTM is powered up and connected to you PC:
1. To connect to the SDIDUTM DC power connector (located on the left front SDIDUTM panel), an
SDIDUTM power cable is required. A mating power cable connector (Phoenix Contact P/N 17
86 83 1) is provided with the MDS 5800 II SDIDUTM for construction of this cable. This
connector has screw clamp terminals that accommodate 24 AWG to 12 AWG wire. The
recommended wire size for construction of power cables under 10 feet in length, supplying
-48 V dc, is 18 AWG. The opposite end of the SDIDUTM power cable should have a
termination appropriate for the power supply being used. The SDIDUTM power cable should
be of sufficient length to avoid tension in the cable and provide a service loop for connection,
but not be of excessive length. Stranded wire should be used over a solid conductor to
reduce tension on the SDIDUTM DC Power connector. Using the supplied power cable
connector, pin 2 (labeled -V) should be connected to the power supply terminal supplying -48
V dc, while pin 1 (labeled RET) should be connected to the power supply return. Refer to
Figure 3-14. Note that pin 1 (RET) of the SDIDUTM DC Power connector is connected to the
SDIDUTM chassis ground internal to the SDIDUTM. Use of a power supply with an
inappropriate ground reference may cause damage to the SDIDUTM and/or the supply.
2. Connect the SDIDUTM power cable to the -48 V dc power supply, and place the voltmeter
probes on the unconnected SDIDUTM end of the power cable, with the positive voltmeter
probe on pin 2 (-V) of the cable connector and the negative probe on pin 1(RET). The
connector screw terminal screw heads may be used as convenient monitor points. Refer to
Figure 3-14.
3. Turn on the –48 V dc supply. Verify that the digital voltmeter reads between -44 V dc and -52
V dc when monitoring the cable points specified above. Adjust the power supply output
voltage and/or change the connections at the power supply to achieve this reading.
4. With the negative voltmeter probe still on pin 1 (RET) of the power cable connector (and the
power supply still on), press the positive voltmeter probe to the SDIDUTM chassis and verify a
potential of zero volts between the SDIDUTM chassis and cable pin 1 (RET). If the measured
potential is not zero, the power supply may be grounded incorrectly and should not be used in
this condition with an SDIDUTM. Note that this measurement assumes that the SDIDUTM is
installed and properly grounded. If this is not the case, the same measurement can be made
between cable pin 1 (RET) and a convenient ground (such as an ac outlet third-wire ground).
5. Turn the -48 V dc supply off.
6. Plug the SDIDUTM power cable into the SDIDUTM front panel DC Power connector (DC
Input). Place the voltmeter probes on the cable connector screw terminal screw heads as
per step 2 above. Refer to Figure 3-5. Note that the MDS 5800 II SDIDUTM does not have a
power on/off switch. When DC power is connected, the digital radio powers up and is
operational. There can be up to 320 mW of RF power present at the antenna port. The
antenna should be directed safely when power is applied.
7. Turn on the -48 V dc power supply, and verify that the reading on the digital voltmeter is as
specified in step 3 above.
8. Turn the -48 V dc supply off.
MDS 5800 II
User Reference and Installation Manual
3-27
9. Connect the SDIDUTM to the laptop computer, using a Cat-5 Ethernet cable or connect the
SDIDUTM to a computer network, using a Cat-5 Ethernet cable. Connect the Ethernet cable
to NMS 1 or 2 connector on the SDIDUTM front panel. Refer to Figure 2-2 for the SDIDUTM
front panel connections.
Figure 3-14. SDIDUTM DC Power Cable Connector
Figure 3-15. MDS 5800 II-SB, 1+1 Protection: SDIDUTM Front Panel Connections
3.7.3.1
Setting the IDU IP Address
To manage the MDS 5800 II remotely the IP address of the radio must be set. If the SDIDUTM IP
address is set to the factory default or any known value. Use a web browser to access the
SDIDUTM GUI and set the IP address as follows as described in section 3.7.3.1.1. If the IP
address is unknown, a hyperterminal connection via a serial cable can be used as described in
section 3.7.3.1.2.
3.7.3.1.1
Using the GUI to set the IP address
1. The IDU should be accessible from your PC. A network ‘ping’ can be done to verify
connectivity to the IDU.
MDS 5800 II
User Reference and Installation Manual
3-28
A. On your desktop, click the Start button and select Programs. Then click on the
MS-DOS Prompt icon.
B. In the MS-DOS window, type ping 192.168.0.1 and press enter. 192.168.0.1 is
the default factory IP address.
C. If the ping is successful, the following message will appear: Reply from
192.168.0.1: bytes=a. time=b ms, TTL=c. Refer to Figure 3-16for an example of a
ping. A successful ping implies that the SDIDUTM and the PC can communicate
with one another across an Ethernet connection.
D. Close the MS-DOS prompt window.
Figure 3-16 IDU Ping Example
2. Start a web browser and use the SDIDUTM default IP address (192.168.0.1) as the url.
3. Log in at the login prompt..
4. The GUI includes a navigation menu in the left frame. If this navigation menu is not
visible, make sure the Java environment is properly installed and active. In the navigation
menu, select Administration, then Network Configuration, and then General. The IP
address, IP Netmask, and IP Gateway are shown.
5. Enter the new IP address, IP Netmask, and IP Gateway. The gateway must be in the
same subnet as the IP address for proper operation. Click Update to change the values.
6. To verify the IP address, repeat step 1 using the new address.
7. To continue using the GUI, point the web browser to the new IP address.
3.7.3.1.2
Using a terminal connection to set the IP address
1. Connect the Serial/Alarm port on the SDIDUTM to a COM port on the computer.
MDS 5800 II
User Reference and Installation Manual
3-29
2. Start a hyperterminal session and select the following COM port settings:
•
Bits per second:
38400
•
Data bits:
•
Parity:
None
•
Stop bits:
•
Flow control:
None
3. The following terminal and ASCII settings are recommended for best viewing:
•
Emulation:
VT100
•
Line delay:
50 ms
•
Character delay:
10 ms
•
Text wrap:
On
4. Connect to the SDIDUTM. Once the connections complete, power on the SDIDUTM.
5. Press the keyboard return key to receive a login prompt. Log in.
6. Press the M-key to navigate to the Main Menu.
7. Press the B-key to navigate to Administration.
8. Press the A-key to navigate to Network Configuration.
9. Press the A-key to navigate to General.
10. Press the A-key to navigate to IP Address.
11. Enter the new IP address and press the D-Key to update. If the IP address has been
entered correctly enter Y when prompted.
12. If necessary, use the same menus to set the IP Netmask and IP Gateway.
13. Close the hyperterminal connection.
3.7.3.2
Configuring the SDIDUTM
Use the GUI to configure the SDIDUTM as follows:
1. To start the GUI, open a web browser and use the SDIDUTM IP address (192.168.0.1) as
the url and log in when prompted.
2. Use the frame on the left side of the window to navigate to “Radio Link.”
MDS 5800 II
User Reference and Installation Manual
3-30
3. Select the subcategory “Link Configuration.”
4. Select the operating mode. If the SDIDUTM has one modem installed and is connected to
one ODU, select standard. If the SDIDUTM has two modems installed and is connected to
two ODUs, select 1+1 diversity or 1+1 non-diversity for a protected link (as described in
section 2.10) or east-west for a 2+0 ring configuration (as described in section 2.11).
5. Follow the wizard located here to enter the rest of the required settings.
3.7.3.3
Configuring the SDIDUTM Site Attributes
Use the GUI to enter device information as follows:
1. In the navigation menu, select Administration, then Device Information, and then Device
Names.
2. Enter the Owner, Contact, Description, and Location. These values are not required for
operation, but will help keep a system organized.
3.7.4 ODU Antenna Alignment
To use the built-in tuning of the ODU antenna, a complete link is required, with both ends of the
link roughly pointed at each other, and transmitting.
Once the links are roughly pointed, place the local SDIDUTM in “ODU Alignment” mode. This
mode outputs 0 to +3 Volts on the RSSI (Receive Signal Strength Indication) BNC connector
seen on the ODU. This voltage is read on a voltmeter during alignment while the antenna is
adjusted for maximum voltage. The RSSI voltage is linearly calibrated from 2.5 Volts for
maximum RSL (received signal level) at –20 dBm to 0Volts for minimum RSL at -90 dBm. This
mapping characteristic is plotted below in Figure 3-17.
RSSI - Mapped Voltage Output
RSSI Output (V)
-100
-80
-60
-40
-20
Received Signal Level (dBm )
Figure 3-17. ODU RSSI Output vs. Received Signal.
MDS 5800 II
User Reference and Installation Manual
3-31
3.7.5 Documenting MDS 5800 II Configuration
Use the MDS 5800 II configuration form provided at the end of this section, or a similar form, to
document the results of the IDU configuration procedure. Optimally, this complete site form would
be stored with the IDU for future reference.
MDS 5800 II
AB-Full Access Digital Radio Configuration Form
Link ID
Radio Type (A/B)
A=Low band, Horizontal polarization, odd serial number
B=High band & Vertical polarization, even serial number
Radio ID #
Radio S/N
Site Name
Network Administration - Radio
Addresses
Link Administration - Radio
Commissioning:
Near IP:
Far IP
Routing
Rain Model
F requency
Net Mask:
IP EMS 1
Grade of Service
NTP:
IP EMS 2
Rain Region
Gateway:
IP EMS 3
IP EMS 4
SNMP Community Names
TX
RX
Link Distance
GPS Location
Distance (meters)
Trap:
Super User
Read/Write
Read:
OR
Radio Type (A/B)
Radio ID#
Near Latitude
deg
min
sec
Near Longitude
deg
min
sec
Far Latitude
deg
min
sec
Far Longitude
deg
min
sec
Radio S/N
Site Name
Network Administration - IFU
Addresses
Link Administration - Radio
Commissioning:
Near IP:
Far IP
Routing
Rain Model
F requency
Net Mask:
IP EMS 1
Grade of Service
NTP:
IP EMS 2
Rain Region
Gateway:
IP EMS 3
IP EMS 4
SNMP Community Names
TX
RX
Link Distance
GPS Location
Distance (meters)
Trap:
Super User
Read/Write
Read:
OR
Near Latitude
deg
min
sec
Near Longitude
deg
min
sec
Far Latitude
deg
min
sec
Far Longitude
deg
min
sec
4 Summary Specification
Parameter
5800
5300
100 Mbps Ethernet
100 Mbps Ethernet
4-16 T1/E1
4-16 T1/E1
Various combinations of
above
Various combinations of
above
-8 to 22.5 dBm
-18 to 7 dBm
30 dBm
17 dBm
-81 dBm (or higher, based
on selected mode)
-81 dBm (or higher, based on
selected mode)
-20 dBm
-20 dBm
BPSK to 64-QAM
BPSK to 64-QAM
12.5, 16.7, 25, 30 MHz
13.3, 20, 30 MHz
N Type Female
N Type Female
SDIDUTM /ODU Link
TNC Female
TNC Female
RSSI
BNC Female
BNC Female
Ethernet
100Base-Tx RJ-45
100Base-Tx RJ-45
2 T1/E1
RJ-48C Female (2)
RJ-48C Female (2)
14 T1/E1
Molex High-Density 60-pin
Molex High-Density 60-pin
10Base-T/100Base-Tx
RJ-45 Female
10Base-T/100Base-Tx
RJ-45 Female
SNMP, web/http browser
SNMP, web/http browser
10Base-T/100Base-Tx
10Base-T/100Base-Tx
Encryption
Proprietary, AES (optional)
Proprietary, AES (optional)
Alarm Port
2 Form C (SPDT), 2 TTL
Output, 4 TTL Input, DB15HD
2 Form C (SPDT), 2 TTL
Output, 4 TTL Input, DB15HD
System
Capacity
Output Power – Average
(at antenna port)
Output Power – Peak
(at antenna port)
Input Sensitivity
Maximum Input Power
Modulation
Channelization
Radio Interfaces
External Antenna
Data Interfaces
Payload
SNMP
Control
Network Management
NMS Connector
User Reference and Installation Manual
Parameter
4-2
5800
5300
-48 Volts ±10%, <100 W
-48 Volts ±10%, <100 W
SDIDU Operational
Temperature
-5º to 55º C
-5º to 55º C
ODU Operational Temperature
-30º to 55º C
-30º to 55º C
0 to 95%, non-condensing
0 to 95%, non-condensing
Up to 100% at 45º C
Up to 100% at 45º C
15,000 feet/4572 meters,
maximum
15,000 feet/4572 meters,
maximum
17.2 x 1.75 x 14.5 inches
17.2 x 1.75 x 14.5 inches
(43.7 x 4.5 x 36.0 cm)
(43.7 x 4.5 x 36.0 cm)
7 lbs (3.12 Kg)
7 lbs (3.12 Kg)
19 inch/48.2 cm, 1 rack unit
19 inch/48.2 cm, 1 rack unit
14.6 x 15.4 x 2.6 inches
14.6 x 15.4 x 2.6 inches
15 lbs (6.8 Kgs)
15 lbs (6.8 Kg)
Custom Bracket
Custom Bracket
Power/Environment
DC Power
TM
TM
SDIDU
Humidity
ODU Humidity
Altitude
Physical Dimensions
SDIDUTM Size (WxHxD)
TM
SDIDU
Weight
SDIDUTM Mounting/Installation
EIA Rack Mount
ODU Size (W x H x D)
ODU Weight
ODU Mounting/Installation
Mounting
MDS 5800 II
5 Front Panel Connectors
5.1 DC Input (Power) Connector
Two-pin male
PIN
TYPE
SIGNAL
POWER
Power supply return
POWER
-48 Vdc, nominal
5.2 Ethernet 100BaseTX Payload Connector 1-2
RJ-45 Female
12 3 4 5 6 7 8
PIN
TYPE
SIGNAL
INPUT
RX+
INPUT
RX-
OUTPUT
TX+
N/A
N/A
N/A
N/A
OUTPUT
TX-
N/A
N/A
N/A
N/A
User Reference and Installation Manual
5-2
5.3 SONET Payload Connector
SC Duplex Female Fiber
OUT IN
PIN
TYPE
OUT
OUTPUT
SONET OC-3 payload output (optical)
INPUT
SONET OC-3 payload input (optical)
IN
SIGNAL
5.4 STM-1 Payload Connector
BNC Duplex
TX
RX
PIN
TYPE
SIGNAL
TX
OUTPUT
SDH STM-1 payload output (electrical)
RX
INPUT
SDH STM-1 payload input (electrical)
5.5 DS-3/E-3/STS-1 Payload Connector
BNC Duplex
TX
RX
MDS 5800 II
PIN
TYPE
SIGNAL
TX
OUTPUT
DS-3/E-3/STS-1 payload output
RX
INPUT
DS-3/E-3/STS-1 payload input
User Reference and Installation Manual
5-3
5.6 NMS 10/100BaseTX Connector 1-2
RJ-45 Female
12 3 4 5 6 7 8
MDS 5800 II
PIN
TYPE
SIGNAL
OUTPUT
TX+
OUTPUT
TX-
INPUT
RX+
N/A
N/A
N/A
N/A
INPUT
RX-
N/A
N/A
N/A
N/A
User Reference and Installation Manual
5-4
5.7 Alarm/Serial Port Connector
DB-15HD Female
PIN
TYPE
SIGNAL
OUTPUT
21
INPUT/
Output
RS-232 RX/TX
31
OUTPUT
/Input
RS-232 TX/RX
OUTPUT
TTL Alarm Output 4
N/A
GROUND
62
N/A
Alarm 1 Form C Contact Normally Open
72
N/A
Alarm 1 Form C Contact Normally Closed
82
N/A
Alarm 2 Form C Contact Common
INPUT
TTL Alarm Input 1
10
INPUT
TTL Alarm Input 3
112
N/A
Alarm 1 Form C Contact Common
122
N/A
Alarm 2 Form C Contact Normally Open
132
N/A
Alarm 2 Form C Contact Normally Closed
14
INPUT
TTL Alarm Input 2
15
Input
TTL Alarm Input 4
TTL Alarm Output 3
Pins 2 and 3 are hardware jumper configurable for DCE or DTE operation.
Form C Contacts are hardware jumper configurable to emulate TTL outputs.
MDS 5800 II
User Reference and Installation Manual
5-5
5.8 ODU Connector
TNC coaxial female
PIN
TYPE
SIGNAL
Center
I/O
350 MHz TX IF / 140 MHz RX IF / -48 VDC
Shield
N/A
Shield / Chassis GND
5.9 T1- Channels 1-2 Connector
RJ-48C Female
12 3 4 5 6 7 8
MDS 5800 II
PIN
TYPE
SIGNAL
INPUT
RX+
INPUT
RX-
N/A
GND
OUTPUT
TX+
OUTPUT
TX-
N/A
GND
N/A
N/A
N/A
N/A
User Reference and Installation Manual
5.10
60-pin Molex
MDS 5800 II
5-6
T1- Channels 3-16 Connector
PIN
TYPE
SIGNAL
OUTPUT
T1 Channel 13 Transmit Tip
OUTPUT
T1 Channel 14 Transmit Tip
OUTPUT
T1 Channel 15 Transmit Tip
OUTPUT
T1 Channel 16 Transmit Tip
OUTPUT
T1 Channel 9 Transmit Tip
OUTPUT
T1 Channel 10 Transmit Tip
OUTPUT
T1 Channel 11 Transmit Tip
OUTPUT
T1 Channel 12 Transmit Tip
OUTPUT
T1 Channel 5 Transmit Tip
10
OUTPUT
T1 Channel 6 Transmit Tip
11
OUTPUT
T1 Channel 7 Transmit Tip
12
OUTPUT
T1 Channel 8 Transmit Tip
13
OUTPUT
T1 Channel 3 Transmit Tip
14
OUTPUT
T1 Channel 4 Transmit Tip
15
NC
NC
16
NC
NC
17
OUTPUT
T1 Channel 4 Transmit Ring
18
OUTPUT
T1 Channel 3 Transmit Ring
19
OUTPUT
T1 Channel 8 Transmit Ring
20
OUTPUT
T1 Channel 7 Transmit Ring
21
OUTPUT
T1 Channel 6 Transmit Ring
22
OUTPUT
T1 Channel 5 Transmit Ring
User Reference and Installation Manual
MDS 5800 II
5-7
PIN
TYPE
SIGNAL
23
OUTPUT
T1 Channel 12 Transmit Ring
24
OUTPUT
T1 Channel 11 Transmit Ring
25
OUTPUT
T1 Channel 10 Transmit Ring
26
OUTPUT
T1 Channel 9 Transmit Ring
27
OUTPUT
T1 Channel 16 Transmit Ring
28
OUTPUT
T1 Channel 15 Transmit Ring
29
OUTPUT
T1 Channel 14 Transmit Ring
30
OUTPUT
T1 Channel 13 Transmit Ring
31
INPUT
T1 Channel 16 Receive Tip
32
INPUT
T1 Channel 15 Receive Tip
33
INPUT
T1 Channel 9 Receive Tip
34
INPUT
T1 Channel 14 Receive Tip
35
INPUT
T1 Channel 10 Receive Tip
36
INPUT
T1 Channel 13 Receive Tip
37
INPUT
T1 Channel 11 Receive Tip
38
INPUT
T1 Channel 4 Receive Tip
39
INPUT
T1 Channel 12 Receive Tip
40
INPUT
T1 Channel 3 Receive Tip
41
INPUT
T1 Channel 5 Receive Tip
42
INPUT
T1 Channel 8 Receive Tip
43
INPUT
T1 Channel 6 Receive Tip
44
INPUT
T1 Channel 7 Receive Tip
45
NC
NC
46
NC
NC
47
INPUT
T1 Channel 7 Receive Ring
User Reference and Installation Manual
5.11
5-8
PIN
TYPE
SIGNAL
48
INPUT
T1 Channel 6 Receive Ring
49
INPUT
T1 Channel 8 Receive Ring
50
INPUT
T1 Channel 5 Receive Ring
51
INPUT
T1 Channel 3 Receive Ring
52
INPUT
T1 Channel 12 Receive Ring
53
INPUT
T1 Channel 4 Receive Ring
54
INPUT
T1 Channel 11 Receive Ring
55
INPUT
T1 Channel 13 Receive Ring
56
INPUT
T1 Channel 10 Receive Ring
57
INPUT
T1 Channel 14 Receive Ring
58
INPUT
T1 Channel 9 Receive Ring
59
INPUT
T1 Channel 15 Receive Ring
60
INPUT
T1 Channel 16 Receive Ring
USB
USB Type A
MDS 5800 II
PIN
TYPE
SIGNAL
OUTPUT
+5V
I/O
-Data
I/O
+Data
N/A
GND
User Reference and Installation Manual
5.12
5-9
Voice Order Wire
RJ-48C Female
12 3 4 5 6 7 8
5.13
PIN
TYPE
SIGNAL
N/A
NC
INPUT
PTT
N/A
GND
OUTPUT
PO-
OUTPUT
PO+
INPUT
TI-
N/A
GND
N/A
NC
Data Order Wire
RJ-48C Female
12 3 4 5 6 7 8
MDS 5800 II
PIN
TYPE
RS 422 SIGNAL
RS232 SIGNAL
OUTPUT
TX Clock -
NC
OUTPUT
TX Clock +
NC
OUTPUT
TX Data -
NC
INPUT
RX Data -
NC
INPUT
RX Data +
Rx Data
OUTPUT
TX Data +
Tx Data
INPUT
RX Clock -
NC
INPUT
RX Clock +
NC
User Reference and Installation Manual
MDS 5800 II
5-10
6 Appendix
6.1 Abbreviations & Acronyms
A/D, ADC
Analog-to-Digital, Analog-to-Digital Converter
ABAM
Designation of Lucent for twisted pair cable to connect ADM switch to T1
distribution panel
ADM
Add/Drop Multiplexer
ADPCM
Adaptive Differential Pulse Code Modulation
AdTPC
Adaptive Power Control
AGC
Auto Gain Control
AIS
Alarm Indication Signal
ATM
Asynchronous Transfer Mode
BER
Bit Error Rate
CLEC
Competitive Local Exchange Carrier
CMRR
Common Mode Rejection Ratio
CO
Central Office
Codec
Coder-Decoder
CPE
Customer Premise Equipment
CPU
Central Processing Unit
CPFSK
Continuous-Phase Frequency Shift Keying
CSU
Channel Service Unit
D/A, DAC
Digital-to-Analog, Digital-to-Analog Converter
DB
Decibel
DBc
Decibel relative to carrier
DBm
Decibel relative to 1 mW
DBu
Decibel relative to .775 Vrms
DCE
Data Circuit-Terminating Equipment
DMM
Digital Modem Module
DSP
Digital Signal Processing
DSTL
Digital Studio-Transmitter Link
DTE
Data Terminal Equipment
DVM
Digital Voltmeter
User Reference and Installation Manual
EIRP
Effective Isotropic Radiated Power
EMI
Electromagnetic Interference
EMS
Element Management System
ESD
Electrostatic Discharge/Electrostatic Damage
FCC
Federal Communications Commission
FEC
Forward Error Correction
FET
Field effect transistor
FMO
Frequency Modulation Oscillator
FPGA
Field Programmable Gate Array
FSK
Frequency Shift Keying
FT1
Fractional T1
GPI
General Purpose Input
HP OpenView
Hewlett Packard’s network management product
IC
Integrated circuit
IEC
International Electrotechnical Commission
IF
Intermediate frequency
IMD
Intermodulation Distortion
IP
Internet Protocol
ISDN
Integrated-Services Digital Network
ISM
Industrial, Scientific, and Medical
ISP
Internet Service Provider
ITU
International Telecommunications Union
Kbps
Kilobits per second
kHz
Kilohertz
LAN
Local Area Network
LED
Light-emitting diode
LOS
Line of Sight
LO, LO1
Local oscillator, first local oscillator
LSB
Least significant bit
MAN
Metropolitan Area Network
Mbps
Megabits per second
MIB
Management Information Base
Modem
Modulator-demodulator
MMW
Millimeter Wave
ms
Millisecond
MSB
Most significant bit
MDS 5800 II
6-2
User Reference and Installation Manual
MUX
Multiplex, Multiplexer
µs
Microsecond
µV
Microvolts
NC
Normally closed
NIC
Network Interface Card
NMS
Network Management System
NO
Normally open
NOC
Network Operations Center
OAM&P
Operations, Administration, Maintenance, and Provisioning
OC-3
Optical Carrier level 3
ODU
Outdoor Unit
OS
Operating System
PCB
Printed circuit board
PCM
Pulse Code Modulation
PGM
Program
PLL
Phase-Locked Loop
POP
Point of Presence
PRBS
Pseudo Random Bit Stream
QAM
Quadrature Amplitude Modulation
QPSK
Quadrature Phase Shift Keying
Transmission Rate
RF
Radio Frequency
ROH
Radio Overhead
RPTR
Repeater
RSL
Received Signal Level (in dBm)
RSSI
Received Signal Strength Indicator/Indication
RX
Receiver
SCA
Subsidiary Communications Authorization
SCADA
Security Control and Data Acquisition
SDH
Synchronous Digital Hierarchy
SNMP
Simple Network Management Protocol
SNR
Signal-to-Noise Ratio
TM
SDIDU
Software Defined Indoor Unit (CarrierComm trademark)
SONET
Synchronous Optical Network
SQM
Signal Quality Metric
SRD
Step Recovery Diode
MDS 5800 II
6-3
User Reference and Installation Manual
STL
Studio-Transmitter Link
STM-1
Synchronous Transport Module 1
TCM
Trellis Coded Modulation
TCP/IP
Transmission Control Protocol/Internet Protocol
TDM
Time Division Multiplexing
THD
Total harmonic distortion
TP
Test Point
TTL
Transistor-transistor logic
TX
Transmitter
Vrms
Volts root-mean-square
Vp
Volts peak
Vp-p
Volts peak-to-peak
VOIP
Voice Over Internet Protocol
VPN
Virtual Private Network
VRMS
Volts, root-mean-square
VSWR
Voltage standing-wave ratio
WAN
Wide Area Network
ZIN
Input Impedance
ZOUT
Output Impedance
MDS 5800 II
6-4
IN CASE OF DIFFICULTY...
MDS products are designed for long life and trouble-free operation. However, this equipment, as
with all electronic equipment, may have an occasional component failure. The following
information will assist you in the event that servicing becomes necessary.
TECHNICAL ASSISTANCE
Technical assistance for MDS products is available from our Technical Support Department
during business hours (8:00 A.M.–5:30 P.M. Eastern Time). When calling, please give the
complete model number of the radio, along with a description of the trouble/symptom(s) that you
are experiencing. In many cases, problems can be resolved over the telephone, without the need
for returning the unit to the factory. Please use one of the following means for product assistance:
Phone: 585 241-5510 E-Mail: mailto:TechSupport@microwavedata.com
FAX: 585 242-8369
Web: http://www.microwavedata.com/
FACTORY SERVICE
Component level repair of radio equipment is not recommended in the field. Many components
are installed using surface mount technology, which requires specialized training and equipment
for proper servicing. For this reason, the equipment should be returned to the factory for any PC
board repairs. The factory is best equipped to diagnose, repair and align your radio to its proper
operating specifications.
If return of the equipment is necessary, you will be issued a Service Request Order (SRO)
number and return shipping address. The SRO number will help expedite the repair so that the
equipment can be repaired and returned to you as quickly as possible. Please be sure to include
the SRO number on the outside of the shipping box, and on any correspondence relating to the
repair. No equipment will be accepted for repair without an SRO number.
A statement should accompany the radio describing, in detail, the trouble symptom(s), and a
description of any associated equipment normally connected to the radio. It is also important to
include the name and telephone number of a person in your organization who can be contacted if
additional information is required.
The radio must be properly packed for return to the factory. The original shipping container and
packaging materials should be used whenever possible.
When repairs have been completed, the equipment will be returned to you by the same shipping
method used to send it to the factory. Please specify if you wish to make different shipping
arrangements. To inquire about an in-process repair, you may contact our Product Services
Group at 585-241-5540 (FAX: 585-242-8400), or via e-mail at:
ProductServices@microwavedata.com

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
Create Date                     : 2005:07:22 19:46:15Z
Modify Date                     : 2005:08:04 13:52:14-06:00
Page Count                      : 75
Creation Date                   : 2005:07:22 19:46:15Z
Mod Date                        : 2005:08:04 13:52:14-06:00
Producer                        : Acrobat Distiller 5.0 (Windows)
Author                          : jsanchez
Metadata Date                   : 2005:08:04 13:52:14-06:00
Creator                         : jsanchez
Title                           : Microsoft Word - MDS5800 UserReference-FCC-MDS[1].doc

EXIF Metadata provided by EXIF.tools