RM024 – RAMP Wireless Module

Datasheet

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/ramp

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Europe: +44-1628-858-940

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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.

The RM024 RAMP module improves upon Laird’s 2.4 GHz RAMP predecessors by lowering power consumption

through the use of three different sleep mode options, an improved link budget, the ability for close proximity

operation at low power, and the inclusion of a switchable antenna output (RM024-xxxx-M-yy versions only).

The RM024 is available in two versions:



RM024-S125-x-xx/RM024-P125-x-xx – Contains 125 mW maximum conducted output power which is

approved for North American and similar markets.



RM024-S10-x-xx/RM024-P10-x-xx – Contains 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 module, 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) is referred to as OEM

host or host.

1.1 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 <1 uA (varies depending on sleep mode)



Software-selectable interface baud ranging from 1200 bps to 230.4 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 Laird’s Command Interface



Easy-to-use Laird Configuration and Test Utility software



Switchable antenna output, either integrated antenna or external antenna through U.FL (RM024-S125-M,

RM024-P125-M, RM024-S10-M, and RM024-P10-M radios only)