Wavenet Technology Pty Ltd. BM2900D 用户手册
Installation_________________________________________________ Boomer II User Manual & Integrator’s Guide
Copyright Wavenet Technology © November 2003
46
BM210012WT37
Off
The modem is turned off or the host/terminal (battery)
has failed.
has failed.
Sleep
The processor is sleeping and wakes up to an interrupt,
but the RF section is off.
but the RF section is off.
Receive
The processor is actively processing information; the RF
sections are on and demodulating data.
sections are on and demodulating data.
Transmit
The processor is actively processing information; the RF
sections are on and transmitting data.
sections are on and transmitting data.
Power Profile
The modem’s power consumption profile depends on the usage and the
network configuration of the Power Save protocol.
For example, the following numbers present a typical profile for the
Boomer II modem based on reasonably heavy usage and assuming a
3.8V supply current: (Power Save Mode = Maximum)
The modem’s power consumption profile depends on the usage and the
network configuration of the Power Save protocol.
For example, the following numbers present a typical profile for the
Boomer II modem based on reasonably heavy usage and assuming a
3.8V supply current: (Power Save Mode = Maximum)
80 % Sleep @ 4.4 mA typical
19.9 % Receive @ 76 mA typical
0.1% Transmit @ 1.6A typical
The actual percentage of total time spent in each state (transmit,
receive, sleep) is a function of the following variables.
receive, sleep) is a function of the following variables.
Network configuration
On networks supporting Power Save operation, the network
configuration impacts how long the modem must be in the sleep state.
On networks supporting Power Save operation, the network
configuration impacts how long the modem must be in the sleep state.
Note: Neither Wavenet nor any developer has any direct control over
the network configuration. Networks supporting Power Save are
typically configured to preserve the battery life of modems of their
subscriber base.
the network configuration. Networks supporting Power Save are
typically configured to preserve the battery life of modems of their
subscriber base.
Message traffic model
The message traffic model defines how many messages are transmitted
and received, and the average length of the messages sent and received
in a given working day. For instance, a dispatch application could have
a message traffic model as follows:
The message traffic model defines how many messages are transmitted
and received, and the average length of the messages sent and received
in a given working day. For instance, a dispatch application could have
a message traffic model as follows:
Messages transmitted in 8 hour day: 25
Average length of transmission: 120 bytes
Messages received in 8 hour day: 10
Average length of received message: 30 bytes
This analysis of message traffic allows the power consumption profile
to be assessed in terms of percentage of time spent transmitting,
receiving, and sleeping. (For more information, see Develop a Message
Model on page 14.)
to be assessed in terms of percentage of time spent transmitting,
receiving, and sleeping. (For more information, see Develop a Message
Model on page 14.)
Usage of group LLIs