Laird RM024, Hardware Integration Manual

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RM024 Hardware Integration Guide
Version 3.1
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
www.lairdtech.com/wireless
4 CONN-HIG_RAMP24
RAMP M
ODULES
Laird RAMP (Range Amplified MultiPoint) modules are designed to provide robust wireless
communications for any number of applications requiring a wireless transport for serial data.
RAMP modules feature a Frequency Hopping Spread Spectrum (FHSS) protocol for excellent
interference and multipath immunity. RAMP modules server/client architecture allows for more
than 16 million clients to be addressed and communicating within the network.
Overview
The RM024 RAMP module is based on Laird LT2510 core technology, enhanced with a new RF
front end for improved sleep, improved link budget, and a switchable antenna output. The
RM024 is available in two versions, one with 125 mW maximum conducted output power which is
approved for North American and similar markets, and one with 10 mW maximum conducted
output power which is approved for European and similar markets. These modules are identical
except for output power, transmit power consumption, and the number of RF channels
available. Differences between the two versions, where applicable, are denoted based on part
number.
This document contains information about the hardware and software interface between a
Laird RM024 transceiver and an OEM host. Information includes the theory of operation,
specifications, interface definitions, and mechanical drawings.
Note: Unless mentioned specifically by name, the RM024 modules are referred to as “radio”
or “transceiver”. Individual naming is used to differentiate product specific features.
The host (PC/microcontroller/any device to which the RM024 module is connected)
are referred to as “OEM host” or “host.”
Key Features

Retries and acknowledgements

Configurable network parameters

Multiple generic I/O

280 kbps or 500 kbps RF data stream

Idle current draw of 9.5 mA, sleep current of 50 uA

Software selectable interface baud rates from 1200 bps to 460.8 kbps

Upgradable FW through serial port

Low cost, low power, and small size ideal for high volume, portable, and battery powered
applications

All modules are qualified for Industrial temperatures (-40°C to 85°C)

Advanced configuration available using AT commands

Easy to use Configuration and Test Utility software

Switchable antenna output, either integrated antenna or external antenna through U.FL