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

GE MDS LLC MDS 5800 II Digital Radio Transceiver Manual

Contents

Manual

Microwave Data Systems MDS 5800 II Digital Radio Transceiver User Reference and Installation Manual June 2005
MDS 5800 II
MDS 5800 II Table of Contents 1 SAFETY PRECAUTIONS ......................................................................................................................1-1 FCC Part 15 Notice ................................................................................................................................................... 1-2 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 3 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 4 SUMMARY SPECIFICATION ................................................................................................................4-1 5 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 APPENDIX .............................................................................................................................................6-1 6.1 Abbreviations & Acronyms ............................................................................................................................ 6-1
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 MDS 5800 II 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 Minimum Distance (cm) UNII Band (nominal frequency = 5.25 GHz) 54 ISM Band (nominal frequency = 5.725 GHz) 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.
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 MDS 5800 II • 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 carrier-class 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.
User Reference and Installation Manual 2-3 MDS 5800 II 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.Wireless connectivity supplements existing cable (Ethernet). Fast return on investment. Lower total cost of total ownership. Media diversity avoids single points of failure. 2.2 –2.4 Easy to install units Straightforward modular system enables fast deployment and activation. Carrier-class reliability. Fast return on investment. No monthly leased line fees. 3.4 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. Allows customer full use of revenue-generating payload channel. Up to 16 T1/E1 wayside channels supports extension of PBX connectivity between buildings without additional leased-line costs. Lowers total cost of ownership. 2.2– 2.5 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 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 self-healing 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 MDS 5800 II 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 and network management. 2.5,2.7 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. Simplifies troubleshooting of single radios, links, or entire networks. Simplifies network upgrades with remote software upgrades. Allows for mass deployment. 2.7,2.9,3.7 2.3 System Features  Selectable Rates and Interfaces o Up to 16 x E1/T1 (wayside channels) o 100BaseTX/Ethernet: Scalable 5-100 Mbps o DS-3/E-3/STS-1 (option; consult factory for availability)  Support for multiple configurations o 1+0, 1+1 protection/diversity o Hot Standby o East/West Repeater (2 + 0)  Selectable Spectral Efficiency of 0.8 to 6.25 bits/Hz (including FEC and spectral shaping effects)  QPSK, 16 – 64 QAM Modulation
User Reference and Installation Manual 2-5 MDS 5800 II  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 o 30 dBm at 5.8 GHz o 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 o 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.
User Reference and Installation Manual 2-6 MDS 5800 II Table 2-2 MDS 5800 II SDIDUTM Model Types PRODUCT NAME MODEL NUMBER FULL DUPLEX THROUGHPUT DATA INTERFACE WAYSIDE MDS 5800 II 50 5800MMVE 100 Mbps Aggregate (50 Mbps full duplex) 100 BaseTX Two T1/E1s MDS 5800 II 100 5800MMCE 200 Mbps Aggregate (100 Mbps full duplex) 100 BaseTX Two T1/E1s MDS 5800 II 160 5800MMTE 68 Mbps Aggregate (34 Mbps full duplex) 1-16xE1/T1 Scalable Ethernet 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.
User Reference and Installation Manual 2-7 MDS 5800 II 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.
User Reference and Installation Manual 2-8 MDS 5800 II 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.
User Reference and Installation Manual 2-9 MDS 5800 II 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
User Reference and Installation Manual 2-10 MDS 5800 II 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.
User Reference and Installation Manual 2-11 MDS 5800 II ExternalAntennaInternal/ HorizontalAntennaTransferSwitch DuplexerDiversitySwitchTransmitterUp-ConverterReceiverDown-Converter350MHz140MHzDC/DCConverters-48Vdc +10Vdc+5Vdc+3Vdc-5VdcCommlink& Processor5/10MHzODURSL(Received Signal Level)VoltageVerticalAntennaTNCN-typeBNC5.3/5.8 GHzFRAMERSTM-1/OC3DS-3/ES/STS-12xSTM-1/OC34xDS3/ES/STS1Future64 kbps Voice16 T1/E1User 2x 100Base-Tx Switch MODEM/FEC ASICMODEM/FEC ASIC4x44.736/34.368/51.84 Mbps2x 155.52 Mbps4x44.736/34.368/51.84 Mbps155.52 Mbps2x 100 Mbps16x 1.544/2.048 MbpsDigitalIFQuadMuxSNMP 2x 100Base-Tx SwitchCPUEast/Primary ModemWest/Secondary ModemDigitalIFQuadMux2x 100 MbpsIDU CONTROLLEROptional I/O Cards(Small Slot)Standard I/O CardsOptional I/O Cards(Large Slot)Primary Power SupplySecondary Power SupplySerialRCH SerialModem ControlTelemetryIDU-48Vdc-48VdcQuadMux-48Vdc-48VdcMultiplexedIFMultiplexedIF 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.
User Reference and Installation Manual 2-12 MDS 5800 II 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.
User Reference and Installation Manual 2-13 MDS 5800 II 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 all-digital processing, the 64-QAM Modem uses robust modulation and forward error correction coding to minimize the number of bit errors and optimize the radio and network performance. The 64-QAM Modem also scrambles, descrambles and interleaves/deinterleaves the data stream in accordance with Intelsat standards to ensure modulation efficiency and resilience to sustained burst errors. The modulation will vary by application, data rate, and frequency spectrum. The highest order modulation mode supported is 64 Quadrature Amplitude Modulation (QAM). 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.
User Reference and Installation Manual 2-14 MDS 5800 II 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.
User Reference and Installation Manual 2-15 MDS 5800 II 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:
User Reference and Installation Manual 2-16 MDS 5800 II • 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-to-noise 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.
User Reference and Installation Manual 2-17 MDS 5800 II 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 towest modemConnected toeast modemConnected towest modemConnected toeast 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.
User Reference and Installation Manual 2-18 MDS 5800 II Connected towest modemConnected toeast modemConnected towest modemConnected toeast 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
User Reference and Installation Manual 2-19 MDS 5800 II Connected towest modemConnected toeast modemConnected towest modemConnected toeast modemConnected toeast modemConnected towest modemConnected toeast modemConnected towest modem
3 Installation 3.1 Unpacking The following is a list of possible included items. Description Quantity Digital Radio SDIDUTM (1RU chassis) 1 ODU (with hardware) 1 Manual (or Soft copy on a CD) 1 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 MDS 5800 II 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.
User Reference and Installation Manual 3-3 MDS 5800 II ODU - 1SDIDU - 1To IDUAnt. PortODU - 2SDIDU - 2- 40 dB - 40 dBTM TMAnt. Port 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.
User Reference and Installation Manual 3-4 MDS 5800 II 03-01-013bCustomerRequirementsRF Planning& NetworkDesignSite Selection& AcquisitionInstallation &CommissioningNetworkOperation &MaintenanceNetworkUpgrade &ExpansionInstall CablesMount and AlignODUsPerform SiteEvaluationConfigure DigitalSoftware DefinedIDUTMPerform FastPDH Network TestPerformSDH Network TestType ofNetwork?Installation &CommissioningCompletePDH SDHNetwork Life Cycle 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:
User Reference and Installation Manual 3-5 MDS 5800 II • 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.
User Reference and Installation Manual 3-6 MDS 5800 II 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
User Reference and Installation Manual 3-7 MDS 5800 II 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.
User Reference and Installation Manual 3-8 MDS 5800 II • 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 8 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.
User Reference and Installation Manual 3-9 MDS 5800 II Path Length (Km) 15TX Tower Height (m) 30RX Tower Height (m) 20Frequency (MHz) 5800Calculated Fresnel Clearance Ratio 0.05MDS 5800 II Link Planner: Fresnel Zone ClearanceDistance from TX (Km)Optical LOS Height (m)1st Fresnel Zone Radius (m)1st Fresnel Zone Height (m)Radio LOS (60% Fresnel Clearance) Zone Height (m)Earth Curvature1 (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 6.770.8 29.5 6.1 23.4 25.9 0.6 0.0 0.6 4.761.1 29.3 7.3 21.9 24.9 0.9 0.0 0.9 3.871.5 29.0 8.3 20.7 24.0 1.2 0.0 1.2 3.331.9 28.8 9.2 19.5 23.2 1.4 0.0 1.4 2.972.3 28.5 9.9 18.6 22.5 1.7 0.0 1.7 2.702.6 28.3 10.6 17.7 21.9 1.9 20.0 21.9 0.603.0 28.0 11.1 16.9 21.3 2.1 10.0 12.1 1.433.4 27.8 11.6 16.1 20.8 2.3 10.0 12.3 1.333.8 27.5 12.0 15.5 20.3 2.5 23.0 25.5 0.174.1 27.3 12.4 14.8 19.8 2.6 24.0 26.6 0.054.5 27.0 12.7 14.3 19.4 2.8 0.0 2.8 1.904.9 26.8 13.0 13.7 18.9 2.9 0.0 2.9 1.835.3 26.5 13.3 13.2 18.5 3.0 0.0 3.0 1.775.6 26.3 13.5 12.8 18.2 3.1 0.0 3.1 1.726.0 26.0 13.6 12.4 17.8 3.2 5.0 8.2 1.316.4 25.8 13.8 12.0 17.5 3.2 0.0 3.2 1.646.8 25.5 13.8 11.7 17.2 3.3 0.0 3.3 1.617.1 25.3 13.9 11.4 16.9 3.3 0.0 3.3 1.587.5 25.0 13.9 11.1 16.7 3.3 0.0 3.3 1.567.9 24.8 13.9 10.9 16.4 3.3 0.0 3.3 1.548.3 24.5 13.8 10.7 16.2 3.3 0.0 3.3 1.538.6 24.3 13.8 10.5 16.0 3.2 0.0 3.2 1.539.0 24.0 13.6 10.4 15.8 3.2 0.0 3.2 1.539.4 23.8 13.5 10.3 15.7 3.1 0.0 3.1 1.539.8 23.5 13.3 10.2 15.5 3.0 7.0 10.0 1.0210.1 23.3 13.0 10.2 15.4 2.9 0.0 2.9 1.5610.5 23.0 12.7 10.3 15.4 2.8 0.0 2.8 1.5910.9 22.8 12.4 10.3 15.3 2.6 0.0 2.6 1.6211.3 22.5 12.0 10.5 15.3 2.5 0.0 2.5 1.6611.6 22.3 11.6 10.6 15.3 2.3 0.0 2.3 1.7212.0 22.0 11.1 10.9 15.3 2.1 0.0 2.1 1.7912.4 21.8 10.6 11.2 15.4 1.9 0.0 1.9 1.8812.8 21.5 9.9 11.6 15.5 1.7 0.0 1.7 1.9913.1 21.3 9.2 12.0 15.7 1.4 0.0 1.4 2.1513.5 21.0 8.3 12.7 16.0 1.2 0.0 1.2 2.3713.9 20.8 7.3 13.4 16.4 0.9 0.0 0.9 2.7114.3 20.5 6.1 14.4 16.9 0.6 0.0 0.6 3.2814.6 20.3 4.3 15.9 17.6 0.3 0.0 0.3 4.5915.0 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. 051015202530350.00.81.52.33.03.84.55.36.06.87.58.39.09.810.511.312.012.813.514.315.0Distance (Km)Height (m)Optical LOS 1st Fresnel Zone Radio LOS Earth Curvature Obstructions
User Reference and Installation Manual 3-10 MDS 5800 II • 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. The expected RSL and measured RSL should be close (+/- 5 to 10 dB) 3.5.3.2 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.
User Reference and Installation Manual 3-11 MDS 5800 II 3.5.3.3 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 multi-radio configurations, antenna size, antenna polarization, and antenna location are critical.
User Reference and Installation Manual 3-12 MDS 5800 II 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. 5725F, MHz5850Diplexer1 Channel Operation, 30MHz Bandwidth5750 5825A TxB Rx A RxB Tx 2 Channel Operation, 25MHz Bandwidth5725F, MHz5850Diplexer5762 58121A Tx1B Rx 1A Rx1B Tx 5737 58372A Rx2B Tx 2A Tx2B Rx 3 Channel Operation, 16.7MHz Bandwidth5725F, MHz5850Diplexer5766 58081A Tx1B Rx 1A Rx1B Tx 5733 58412A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 57503A Rx3B Tx 58255725F, MHz5850Diplexer4 Channel Operation, 12.5MHz Bandwidth5756 58061A Tx1B Rx 1A Rx1B Tx 5731 58432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 4A Tx4B Rx 5743 57683A Rx3B Tx 4A Rx4B Tx 5818 58315725F, MHz5850Diplexer1 Channel Operation, 30MHz Bandwidth5750 5825A TxB Rx A RxB Tx 2 Channel Operation, 25MHz Bandwidth5725F, MHz5850Diplexer5762 58121A Tx1B Rx 1A Rx1B Tx 5737 58372A Rx2B Tx 2A Tx2B Rx 2 Channel Operation, 25MHz Bandwidth5725F, MHz5850Diplexer5762 58121A Tx1B Rx 1A Rx1B Tx 5737 58372A Rx2B Tx 2A Tx2B Rx 3 Channel Operation, 16.7MHz Bandwidth5725F, MHz5850Diplexer5766 58081A Tx1B Rx 1A Rx1B Tx 5733 58412A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 57503A Rx3B Tx 58253 Channel Operation, 16.7MHz Bandwidth5725F, MHz5850Diplexer5766 58081A Tx1B Rx 1A Rx1B Tx 5733 58412A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 57503A Rx3B Tx 58255725F, MHz5850Diplexer4 Channel Operation, 12.5MHz Bandwidth5756 58061A Tx1B Rx 1A Rx1B Tx 5731 58432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 4A Tx4B Rx 5743 57683A Rx3B Tx 4A Rx4B Tx 5818 58315725F, MHz5850Diplexer4 Channel Operation, 12.5MHz Bandwidth5756 58061A Tx1B Rx 1A Rx1B Tx 5731 58432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 4A Tx4B Rx 5743 57683A Rx3B Tx 4A Rx4B Tx 5818 5831 Figure 3-3. MDS 5800 II Channel 5.8 GHz Frequency Plan
User Reference and Installation Manual 3-13 MDS 5800 II 5250F, MHz5350Diplexer1 Channel Operation, 30MHz Bandwidth5270 5330A TxB Rx A RxB Tx 2 Channel Operation, 20MHz Bandwidth5250F, MHz5350Diplexer5280 53201A Tx1B Rx 1A Rx1B Tx 5260 53402A Rx2B Tx 2A Tx2B Rx 3 Channel Operation, 13.3MHz Bandwidth5250F, MHz5350Diplexer5283 53171A Tx1B Rx 1A Rx1B Tx 5257 53432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 52703A Rx3B Tx 53305250F, MHz5350Diplexer1 Channel Operation, 30MHz Bandwidth5270 5330A TxB Rx A RxB Tx 2 Channel Operation, 20MHz Bandwidth5250F, MHz5350Diplexer5280 53201A Tx1B Rx 1A Rx1B Tx 5260 53402A Rx2B Tx 2A Tx2B Rx 2 Channel Operation, 20MHz Bandwidth5250F, MHz5350Diplexer5280 53201A Tx1B Rx 1A Rx1B Tx 5260 53402A Rx2B Tx 2A Tx2B Rx 3 Channel Operation, 13.3MHz Bandwidth5250F, MHz5350Diplexer5283 53171A Tx1B Rx 1A Rx1B Tx 5257 53432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 52703A Rx3B Tx 53303 Channel Operation, 13.3MHz Bandwidth5250F, MHz5350Diplexer5283 53171A Tx1B Rx 1A Rx1B Tx 5257 53432A Rx2B Tx 2A Tx2B Rx 3A Tx3B Rx 52703A Rx3B Tx 5330 Figure 3-4. MDS 5800 II Channel 5.3 GHz Frequency Plan 2 Channel Operation5725F, MH z58505762 58123A Tx3B Rx 5737 58373A Rx3B Tx 3 Channel Operation5725F, MH z58505766 58084A Tx4B Rx 5733 58415A Rx5B Tx 5A Tx5B Rx 57504A Rx4B Tx 58255725F, MH z58504 Channel Operation5756 58065A Tx5B Rx 5731 58436A Tx6B Rx 5743 57686A Rx6B Tx 5A Rx5B Tx 5818 58312 Channel Operation5725F, MH z58505762 58123A Tx3B Rx 5737 58373A Rx3B Tx 3 Channel Operation5725F, MH z58505766 58084A Tx4B Rx 5733 58415A Rx5B Tx 5A Tx5B Rx 57504A Rx4B Tx 58255725F, MH z58504 Channel Operation5756 58065A Tx5B Rx 5731 58436A Tx6B Rx 5743 57686A Rx6B Tx 5A Rx5B Tx 5818 5831 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. This should provide adequate link performance for most applications.
User Reference and Installation Manual 3-14 MDS 5800 II 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.
User Reference and Installation Manual 3-15 MDS 5800 II Address Site EngineerContact PersonPhoneSite No Site AgentSite Type# Latitude LongitudeODUExample Information Information InformationODU# 4Clear Line of Sight YesMounting Method Wall or PoleFCC Compliance YesCollocationAestheticsODU Azimuth 60 degreesGPS Reading 80 21' 48"Cable LengthsAlarmInterconnect Cable 250 feetGrounding/LightingInstructionsPhotographs*Photo 1Photo 2Photo 3Sketches**Sketch 1Sketch 2*Photographs **SketchesPhoto 1 - ODU mounting location Sketch 1- Roof and cable route to entry pointPhone 2 - View from the ODU mounting location to the link partner Sketch 2 - Details for grounding and lighting protectionPhoto 3 - IDU location Sketch 3 - IDU room and cable routes from entry portSite Evaluation FormODU Roof LocationMapping Datum (ex. NDA27)Roof RequirementsRecommendations for Site Photographs and Sketches
User Reference and Installation Manual 3-16 MDS 5800 II Site Evaluation Parameters Example Information Information Information InformationSource PCS Tx and/or Rx Tx/Rx Frequency 2.1 GHz Distance from ODU 5 feet Owner Sprint PCSAzimuth 210 degreesElevation 2 degrees downtiltAntenna Type Power Power 14W Parameters Example Information Information Information InformationIDU room Identified Yes Space for cabinet Yes Phone line Need to install48 VDC available? Yes Cables Confirm cablesTake Photo 3 Sketch 3 Front View Top View Side View Equipment Cabinet Batteries NoteEquipment Dimensions Colocated SDIDUTM Indoor Space
User Reference and Installation Manual 3-17 MDS 5800 II 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
User Reference and Installation Manual 3-18 MDS 5800 II 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.
User Reference and Installation Manual 3-19 MDS 5800 II 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
User Reference and Installation Manual 3-20 MDS 5800 II 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.
User Reference and Installation Manual 3-21 MDS 5800 II 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 N-type 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:
User Reference and Installation Manual 3-22 MDS 5800 II 3.6.4.1 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.
User Reference and Installation Manual 3-23 MDS 5800 II 3.6.4.2 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
User Reference and Installation Manual 3-24 MDS 5800 II 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 2 1
User Reference and Installation Manual 3-25 MDS 5800 II 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
User Reference and Installation Manual 3-26 MDS 5800 II 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.
User Reference and Installation Manual 3-27 MDS 5800 II 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. 2 1
User Reference and Installation Manual 3-28 MDS 5800 II 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.
User Reference and Installation Manual 3-29 MDS 5800 II 2. Start a hyperterminal session and select the following COM port settings: • Bits per second: 38400 • Data bits: 8 • Parity: None • Stop bits: 1 • 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.”
User Reference and Installation Manual 3-30 MDS 5800 II 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 Output0123-100 -80 -60 -40 -20 0Received Signal Level (dBm )RSSI Output (V) Figure 3-17. ODU RSSI Output vs. Received Signal.
User Reference and Installation Manual 3-31 MDS 5800 II 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.
AB-Full Access Digital Radio Configuration Form Link IDRadio Type (A/B) A=Low band, Horizontal polarization, odd serial numberB=High band & Vertical polarization, even serial numberRadio ID # Radio S/NSite NameAddresses Commissioning:Near IP: Far IP Rain ModelRo u t i ng Frequency TX RXNet Mask: IP EMS 1 Grade of ServiceNTP: IP EMS 2 Rain RegionGateway: IP EMS 3IP E MS 4 Li n k Di stanc e GP S LocationSNMP Community Names Near Latitude deg min secTrap: Super User OR Near Longitude deg min secRead/Write Read: Far Latitude deg min secFar Longitude deg min secRa d i o Ty p e ( A/ B)Radio ID# Radio S/NSite Name Addresses Commissioning:Near IP: Far IP Rain ModelRouting F requency TX RXNet Mask: IP EMS 1 Grade of ServiceNTP: IP EMS 2 Rain RegionGateway: IP EMS 3IP E MS 4 Li n k Di stanc e GP S LocationSNMP Community Names Near Latitude deg min secTrap: Super User OR Near Longitude deg min secRead/Write Read: Far Latitude deg min secFar Longitude deg min secDistance (meters)Network Administration - RadioDistance (meters)Link Administration - Radio12Network Administration - IFU Link Administration - Radio
4 Summary Specification Parameter 5800 5300 System Capacity 100 Mbps Ethernet 4-16 T1/E1 Various combinations of above 100 Mbps Ethernet 4-16 T1/E1 Various combinations of above Output Power – Average (at antenna port) -8 to 22.5 dBm -18 to 7 dBm Output Power – Peak (at antenna port) 30 dBm 17 dBm Input Sensitivity -81 dBm (or higher, based on selected mode) -81 dBm (or higher, based on selected mode) Maximum Input Power -20 dBm -20 dBm Modulation BPSK to 64-QAM BPSK to 64-QAM Channelization 12.5, 16.7, 25, 30 MHz 13.3, 20, 30 MHz Radio Interfaces External Antenna N Type Female N Type Female SDIDUTM /ODU Link TNC Female TNC Female RSSI BNC Female BNC Female Data Interfaces Payload Ethernet 2 T1/E1 14 T1/E1 100Base-Tx RJ-45 RJ-48C Female (2) Molex High-Density 60-pin 100Base-Tx RJ-45 RJ-48C Female (2) Molex High-Density 60-pin SNMP 10Base-T/100Base-Tx RJ-45 Female 10Base-T/100Base-Tx RJ-45 Female Control Network Management SNMP, web/http browser SNMP, web/http browser NMS Connector 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, DB-15HD 2 Form C (SPDT), 2 TTL Output, 4 TTL Input, DB-15HD
User Reference and Installation Manual 4-2 MDS 5800 II Parameter 5800 5300 Power/Environment DC Power -48 Volts ±10%, <100 W -48 Volts ±10%, <100 W SDIDUTM Operational Temperature -5º to 55º C -5º to 55º C ODU Operational Temperature -30º to 55º C -30º to 55º C SDIDUTM Humidity 0 to 95%, non-condensing 0 to 95%, non-condensing ODU Humidity Up to 100% at 45º C Up to 100% at 45º C Altitude 15,000 feet/4572 meters, maximum 15,000 feet/4572 meters, maximum Physical Dimensions SDIDUTM Size (WxHxD) 17.2 x 1.75 x 14.5 inches (43.7 x 4.5 x 36.0 cm) 17.2 x 1.75 x 14.5 inches (43.7 x 4.5 x 36.0 cm) SDIDUTM Weight 7 lbs (3.12 Kg) 7 lbs (3.12 Kg) SDIDUTM Mounting/Installation EIA Rack Mount 19 inch/48.2 cm, 1 rack unit 19 inch/48.2 cm, 1 rack unit ODU Size (W x H x D) 14.6 x 15.4 x 2.6 inches 14.6 x 15.4 x 2.6 inches ODU Weight 15 lbs (6.8 Kgs) 15 lbs (6.8 Kg) ODU Mounting/Installation Mounting Custom Bracket Custom Bracket
5 Front Panel Connectors 5.1 DC Input (Power) Connector Two-pin male PIN TYPE SIGNAL 1 POWER Power supply return 2 POWER -48 Vdc, nominal 5.2 Ethernet 100BaseTX Payload Connector 1-2 RJ-45 Female PIN TYPE SIGNAL 1 INPUT RX+ 2 INPUT RX- 3 OUTPUT TX+ 4 N/A N/A 5 N/A N/A 6 OUTPUT TX- 7 N/A N/A 8 N/A N/A 12 3 4 5 6 7 8 12
User Reference and Installation Manual 5-2 MDS 5800 II 5.3 SONET Payload Connector SC Duplex Female Fiber PIN TYPE SIGNAL OUT OUTPUT SONET OC-3 payload output (optical) IN INPUT SONET OC-3 payload input (optical) 5.4 STM-1 Payload Connector BNC Duplex RXTX 5.5 DS-3/E-3/STS-1 Payload Connector BNC Duplex RXTX PIN TYPE SIGNAL TX OUTPUT SDH STM-1 payload output (electrical) RX INPUT SDH STM-1 payload input (electrical) PIN TYPE SIGNAL TX OUTPUT DS-3/E-3/STS-1 payload output RX INPUT DS-3/E-3/STS-1 payload input INOUT
User Reference and Installation Manual 5-3 MDS 5800 II 5.6 NMS 10/100BaseTX Connector 1-2 RJ-45 Female PIN TYPE SIGNAL 1 OUTPUT TX+ 2 OUTPUT TX- 3 INPUT RX+ 4 N/A N/A 5 N/A N/A 6 INPUT RX- 7 N/A N/A 8 N/A N/A 12 3 4 5 6 7 8
User Reference and Installation Manual 5-4 MDS 5800 II 5.7 Alarm/Serial Port Connector DB-15HD Female 1 Pins 2 and 3 are hardware jumper configurable for DCE or DTE operation. 2 Form C Contacts are hardware jumper configurable to emulate TTL outputs. PIN TYPE SIGNAL 1 OUTPUT TTL Alarm Output 3 21 INPUT/ Output RS-232 RX/TX 31 OUTPUT/Input RS-232 TX/RX 4 OUTPUT TTL Alarm Output 4 5 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 9 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
User Reference and Installation Manual 5-5 MDS 5800 II 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 PIN TYPE SIGNAL 1 INPUT RX+ 2 INPUT RX- 3 N/A GND 4 OUTPUT TX+ 5 OUTPUT TX- 6 N/A GND 7 N/A N/A 8 N/A N/A 12 3 4 5 6 7 8
User Reference and Installation Manual 5-6 MDS 5800 II 5.10 T1- Channels 3-16 Connector 60-pin Molex PIN TYPE SIGNAL 1 OUTPUT T1 Channel 13 Transmit Tip 2 OUTPUT T1 Channel 14 Transmit Tip 3 OUTPUT T1 Channel 15 Transmit Tip 4 OUTPUT T1 Channel 16 Transmit Tip 5 OUTPUT T1 Channel 9 Transmit Tip 6 OUTPUT T1 Channel 10 Transmit Tip 7 OUTPUT T1 Channel 11 Transmit Tip 8 OUTPUT T1 Channel 12 Transmit Tip 9 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 5-7 MDS 5800 II 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 5-8 MDS 5800 II 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 5.11 USB USB Type A PIN TYPE SIGNAL 1 OUTPUT +5V 2 I/O -Data 3 I/O +Data 4 N/A GND
User Reference and Installation Manual 5-9 MDS 5800 II 5.12 Voice Order Wire RJ-48C Female PIN TYPE SIGNAL 1 N/A NC 2 INPUT PTT 3 N/A GND 4 OUTPUT PO- 5 OUTPUT PO+ 6 INPUT TI- 7 N/A GND 8 N/A NC 5.13 Data Order Wire RJ-48C Female PIN TYPE RS 422 SIGNAL RS232 SIGNAL 1 OUTPUT TX Clock - NC 2 OUTPUT TX Clock + NC 3 OUTPUT TX Data - NC 4 INPUT RX Data - NC 5 INPUT RX Data + Rx Data 6 OUTPUT TX Data + Tx Data 7 INPUT RX Clock - NC 8 INPUT RX Clock + NC 12 3 4 5 6 7 8 12 3 4 5 6 7 8
User Reference and Installation Manual 5-10 MDS 5800 II
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 6-2 MDS 5800 II 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
User Reference and Installation Manual 6-3 MDS 5800 II 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 R 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 SDIDUTM Software Defined Indoor Unit (CarrierComm trademark) SONET Synchronous Optical Network SQM Signal Quality Metric SRD Step Recovery Diode
User Reference and Installation Manual 6-4 MDS 5800 II 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
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

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