diff --git a/config/devices.properties b/config/devices.properties
index 409f603..33951b3 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -8,3 +8,4 @@ bpm5c=ch.psi.pshell.epics.ChannelDouble|X12SA-OP-BPM5:Current3:MeanValue_RBV|Rea
 bpm5d=ch.psi.pshell.epics.ChannelDouble|X12SA-OP-BPM5:Current4:MeanValue_RBV|Read||true
 dummy=ch.psi.pshell.device.DummyMotor||||true
 bm3trx=ch.psi.pshell.epics.Motor|X12SA-OP-BM1:TRX1|||true
+$sdev1=ch.psi.pshell.serial.SerialPortDevice|/dev/ttyXI00|||