Company Confidential
5
Raveon Technologies Corp.
2. Overview
The
M8S
RF Paging/Data radio modem is capable of high-speed narrow-band data
communications and POCSAG paging decoding. Its powerful microprocessor enables it to
perform as both a data radio modem and a paging receiver. It contains a receiver, a
transmitter, and modem, creating an easy-to-use transparent data radio link. The
M8S
’s
user interface is asynchronous digital data into and out of the
M8S.
Modem operation is
virtually transparent to the user and the configuration of the modem is via the user serial
port.
Unlike any other radio modem on the market, the M8 may be operated in either a
“Packetized Mode” or a “Streaming Real-Time Mode”. There are advantages to each
approach, and your choice depends upon how your system operates. Packet mode is the
default in in most all cases, it is the best way to use a radio modem.
The M8S can be configured in either a paging decoder mode or a data modem mode. The
command-
line interface is similar to Raveon’s other data radio products, and configuring
the mode is very easy. The M8S also has a digital input pin that may be used to electrically
change modem types between data modem and paging modes.
The
M8S
is an easy to use and its re-programmability makes it extremely versatile. Most
parameters within the modem may be re-configured to optimize it for specialized
operations, extended range, or higher data throughput.
It is also available in a receive-only version called the M8R. The M8R is the same electrical
design and has the same features as the M8S except the transmit circuits are not
populated.
2.1. Features
General Features
Serial input and output. Programmable serial baud rates up to 57600.
Small sized and single-board construction.
Very efficient circuitry. ( < 700mW receiving, < 8W transmitting)
Lowest current draw in industry.
Easy to use. Transmit data in = Receive data out.
Receive-only version available
Easily configured using “AT” commands
Extensive diagnostic capabilities
Serial communication may be 7 or 8 bit ASCII, or WMX
Audio pass-through mode
Data Radio Modem Features
High-speed over the air data rates.
Built-in radio transceiver with integrated modem
Wide input voltage with high-efficiency switching voltage regulator.
Capable of store-and-forward repeating operation.
