User's Manual
Table Of Contents
- EX-i Series (TDD)
- Digital Microwave Radios
- Installation and Management Guide
- Legal Notice
- Open-Source License Information
- Table of Contents
- List of Figures
- List of Tables
- About this Document
- Introduction
- Pre-installation Tasks
- Link Engineering and Site Planning
- Familiarization with the i-Series Radios
- Initial Configuration and Back-to-Back Bench Test
- RF Output Power Setting
- Time Division Duplex (TDD) Factors
- Link Orientation and Synchronization
- Radio Synchronization
- Offset Timing
- Virtual Local Area Network (VLAN)
- Link Symmetry
- Simple Network Management Protocol (SNMP)
- System Installation and Initiation Process
- Installation
- Configuration and Management
- Command Line Interface (CLI)
- Telnet into the Command Line Interface (CLI)
- Exalt Graphical User Interface (GUI)
- Quick Start
- Navigating the GUI
- Radio Information Page
- Administration Settings Page
- Simple Network Management Protocol (SNMP) Configuration
- File Transfer Page
- File Activation Page
- Access Security Page
- System Configuration Page
- MHS Configuration Page
- Ethernet Interface Configuration Page
- VLAN Configuration Page
- T1/E1 Configuration Pages
- DS3 Configuration Page
- GPS Information Page
- Alarms Page
- MHS Status Page
- Performance Page
- Event Log Page
- User Throughput Page
- Diagnostic Charts Page
- Spectrum Analyzer Page
- Ethernet Utilization Page
- Reboot Page
- Manual Page
- Specifications
- Interface Connections
- DIP Switch Settings (-16 Models Only)
- Antennas
- DC Coupler for Antenna Alignment
- Troubleshooting
- Back-to-back Bench Testing
- General Compliance and Safety
- Dynamic Frequency Selection
- Safety Notices
- Regulatory Notices
- Regulatory Compliance
- Regulatory Domain Keys
- EIRP Limits for the United States and Canada
- EIRP Limits for the European Union and ITU Countries
- EIRP Limits for Australia
- Declaration of Conformity to the R&TTE Directive 1999/5/EC
- END USER AGREEMENT
- Copyright Notices
- Index
Exalt Installation and Management Guide
EX-i Series (TDD) Digital Microwave Radios
6 206501-019
2016-05-24
Pre-installation Tasks
This section describes the steps necessary to prepare a site for the installation of the Exalt Digital
Microwave Radio.
Link Engineering and Site Planning
Design all terrestrial wireless links prior to purchase and installation. Generally, professional wireless
engineering personnel are engaged to determine the viability and requirements for a well-engineered
link to meet the users’ needs for performance and reliability.
The reader is referred to the Exalt document, Guidance for Engineering and Site Planning of
Terrestrial Wireless Links. This document and calculator aid in the pre-planning and engineering
required to determine following attributes:
• Antenna type/gain at each end of the link
• Antenna mounting height/location for proper path clearance
• Antenna polarization orientation
• RF cabling type, length, connectors, route, and mounting
• Antenna system grounding
• Lightning arrestor type(s), location(s), and grounding
• Radio mounting location and mechanisms
• Radio grounding
• Radio transmitter output power setting
• Anticipated received signal level (RSL) at each end
• Anticipated fade margin and availability performance at each end
• Radio settings for TDD frame length and occupied bandwidth
• Anticipated throughput performance (TDM circuit support and Ethernet)
• Anticipated system latency
With respect to radio path and site planning, these radios are generally identical to other microwave
terrestrial wireless systems. Engineering of these systems requires specific knowledge about the
radios, including:
• RF specifications (transmitter output power, receiver threshold, occupied channel bandwidth, and
carrier-to-interference tolerance)
• Regulatory limitations on transmitter output power setting and antenna type/gain
• Noise/interference profile for the intended location
Familiarization with the i-Series Radios
The Exalt i-Series radios utilize time division duplex (TDD) radio transmission. This means that the
transmitted signal in both directions uses the same center frequency and transmits in one direction for
a period of time, and then in the opposite direction for another period of time. This total period of time
is referred to as the frame length or TDD frame length, and is further discussed in Time Division
Duplex (TDD) Factors.