Moseley Associates Inc EVENTHD User Manual
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2. System Description
© 2007 Moseley, Inc. All Rights Reserved.
602-14886-01, Rev. A
In response to the need for a high-density deployment model the Event-HD uses a
unique power control technique called A
unique power control technique called A
d
TPC. A
d
TPC enables Event-HD to transmit at the
minimum power level necessary to maintain a link regardless of the prevailing weather
and interference conditions. The Event-HD is designed and manufactured to not exceed
and interference conditions. The Event-HD is designed and manufactured to not exceed
the maximum power allowed. The purpose of power management is to minimize transmit
power level when lower power levels are sufficient. A
power level when lower power levels are sufficient. A
d
TPC 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.
quality (signal-to-noise ratio) as well.
In contrast to ATPC, the A
d
TPC technique dynamically adjusts the output power based on
both the actual strength and quality of the signal. Networked Event-HD radios constantly
monitor receive power and maintain 10
monitor receive power and maintain 10
-12
BER performance under varying interference
and climate conditions. Each Event-HD 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 Event-
received signal level of quality and adjust the transmit power level of the far-end Event-
HD unit to correct for it.
A
d
TPC 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,
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 Event-HD units in a smaller area.
able to deploy more Event-HD units in a smaller area.
2.14Event-HD Software and Network Management
All of the Event-HD parameters are accessible in three ways:
1. Using a standard web-browser via HTTP to access the built in web server.
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.
The GUI (HTTP), SNMP, and CLI interfaces are discussed in detail in the Software Defined
IDU™ User Interface Manual.
IDU™ User Interface Manual.
2.14.1IP Address
Each Event-HD radio is configured independently for network parameters such as IP
address, subnet, and gateway. However, the Event-HD also supports acting as a DHCP
address, subnet, and gateway. However, the Event-HD also supports acting as a DHCP
client, in which case the IP address can be assigned to the Event-HD radio using a DHCP
server. A specific IP address may be associated with a particular Event-HD radio by
server. A specific IP address may be associated with a particular Event-HD radio by
configuring the DHCP server to serve IP addresses based upon the SDIDU™ Ethernet
MAC address.
MAC address.
2.14.2Network
The Event-HD uses an “Out-of-Band” NMS network which is separated from the payload
Ethernet network. Each Event-HD contains a managed Layer 2 Ethernet switch that
Ethernet network. Each Event-HD contains a managed Layer 2 Ethernet switch that
supports Spanning-Tree Protocol (STP) for managing NMS traffic. This allows the Event-