https://devzone.nordicsemi.com/f/nordic-q-a/4760/multiple-slave-connection-with-s110Hello! I&#39;m working with nRF51822 Development Kit and s110(Ver.7.1.0). I&#39;d like to confirm the function about LE Link Layer Topology specified in the Bluetooth specification version 4.1. And I want to use the s110 as multiple slaves. Is it possibleen-USTelligent Community 13Tue, 09 Dec 2014 16:04:05 GMThttps://devzone.nordicsemi.com/thread/16850?ContentTypeID=1Tue, 09 Dec 2014 16:04:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79e8ef37-c36a-4644-81ed-03e01bb40bdePetter Myhre<p>A master can be connected to multiple slaves, not the other way around.</p> <p>SoftDevice S110 supports the GAP peripheral role, which can have a link layer in the advertising state and slave role in the connection state.</p> <p>SoftDevice S120 supports the GAP central role, which can have a link layer in the scanning state, initiating state, and the master role in the connection state.</p> <p><a href="https://devzone.nordicsemi.com/question/232/what-is-a-client-and-server-in-ble/">This</a> question may also be helpful.</p><div style="clear:both;"></div>