4-1

EM35x Development Kit User Guide

120-4030-000E

4.1

Overview

This chapter contains the following sections:

•

ETRX3 Radio Communications Module (RCM)

•

Hardware Connections

•

Connecting the Breakout Board and RCM

•

Breakout Board Power Configurations

•

Breakout Board Serial Configurations

•

Common Hardware Configurations

•

Connecting the RF Cable to the RCM

4.2

ETRX3 Radio Communications Module (RCM)

The EM35x Series Development Kit contains various types of ETRX3 Radio Communications Modules (designed by

Silicon Labs’ partner, Telegesis). These modules contain either the EM357 or EM351 IC and are configured to use

either the ceramic antenna or the on-board RF connector (U.FL). Some module variants also include a power

amplifier. These configuration options are noted in the Module Product Label, as shown the example label in

Figure 4-1. The top line contains the Silicon Labs Part Number, while the bottom line contains the Module Serial

Number. The Module Serial Number is also listed in the Hardware Identification List attached to your Quick Start

Guide. You can determine the EUI-64 of each module based on this list.

Figure 4-1. Module Product Serial Number Label

The modules shipped already installed on Breakout Boards are module variant EM357-MOD-ANT-T. All other

module variants are contained in the Module Variety Pack. Refer to Table 4-1 for configuration comparisons of

the modules included in your development kit. There are three additional EM351 module variants not included

in the development kit that are available for purchase. Contact your sales representative or distributor for more

details on these module variants.