User's Manual
Table Of Contents
- EX-i Series GigE (FDD)
- 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
- 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
- NTP and Time Zone Configurations
- Simple Network Management Protocol (SNMP) Configuration
- File Transfer Page
- File Activation Page
- System Configuration Page
- Allocation Page
- Ethernet Interface Configuration Page
- T1/E1 Configuration Pages
- MHS Configuration Page
- VLAN Configuration Page
- Ethernet Rate Limiting Page
- Ethernet Learning Page
- Syslog Configuration Page
- Ethernet Aggregation
- Cross Connect (X Connect) Page
- Alarms Page
- MHS Status Page
- Performance Page
- ATPC Statistics Page
- Event Log Page
- User Throughput Page
- Diagnostic Charts Page
- Ethernet Utilization Page
- PA Control Page
- Spectrum Analyzer
- Reboot Page
- Manual Page
- Specifications
- Interface Connections
- Troubleshooting
- Back-to-back Bench Testing
- General Compliance and Safety
- Safety Notices
- Regulatory Notices
- Regulatory Compliance
- EIRP Limits for the United States and Canada
- Licensing 6 and 11GHz Models
- Antennas 5GHz Models
- Copyright Notices
- END USER AGREEMENT
- Index
Exalt Installation and Management Guide
EX-i Series GigE (FDD) Digital Microwave Radios
48 202675-008
2016-06-01
design and local regulations. In many cases, this value must be set to a proper value to comply
with legal restrictions. Improper values can result in liability to the user and/or installer.
– Do not adjust the Radio Transmit Power parameter to a value higher than is legally allowed.
– Do not adjust the Radio Transmit Power parameter lower than the link budget and fade margin
can afford.
• Set the Bandwidth (MHz) parameter to the value assigned to the radio license. The value of this is
determined in the design/engineering stage. The Bandwidth parameter must also match at both
ends of the link. In conjunction with the Mode parameter, the Bandwidth parameter directly relates
to the capacity and the number of TDM circuits supported. The transmitter and receiver bandwidth
are modified using this parameter, making it critical that it be set with respect to the local RF noise
and interference profile, and/or in relation to any multi-link network design.
• Adaptive Coded Modulation (ACM) allows the radio link to adaptively adjust the modulation used
to create the link, depending on multipath or fading conditions. The link must be licensed to allow
this setting, specifying the legal maximum and minimum modulation settings. When enabled,
select the Base (minimum) and Target (maximum) modulation settings. ACM must be configured
on both sides of the link. The Base and Target settings must match on both ends.
There are two pre-programmed ACM policies:
– Conservative switches down to the next modulation when the RSL is within 2dB of the current
threshold, and switches up to the next modulation when at least a 5dB RSL margin exists
above the next threshold. This slows and steadies the transition between modulations.
– Aggressive switches down to the next modulation when the RSL is within 1dB of the current
threshold (which is usually exhibiting some low-level BER), and switches up to the next
modulation when at least 3dB RSL margin exists above the next threshold. This increases the
transition between modulations, resulting in the highest capacity at all times. However, this
can increase BER and cause erratic changes to throughput.
Note: Changing Radio Transmit Power may temporarily interrupt traffic. Small changes in
output power do not normally interrupt traffic, but larger changes may.
Note: Changing Bandwidth will temporarily interrupt traffic. The Bandwidth parameter
must match at each end. Adjust the far-end radio first, and then the near-end radio.
Changing Bandwidth changes the radio’s threshold. A narrower bandwidth has better
threshold performance and improved interference immunity, therefore if changing to a wider
bandwidth, there is an opportunity that the link may be lost and unrecoverable through GUI
control. Check the available fade margin to determine if the impact to threshold and increased
bandwidth is acceptable to maintain the link and the desired performance. If the link is lost
due to increasing the Bandwidth parameter, travel to the radio location(s) may be required to
reset the value.