STEPPIII Audio and Serial Cable

You will need the KA13 audio/RS232 cable when you want to use the audio features of the STEPPIII device to configure and test the STEPPIII device. This cable connects to the STEPPIII AMP 15pin connector and splits the audio lines of the STEPPIII into two separate female connectors. The 2.5mm mini-female jack is for connecting a microphone, a 3.5mm female jack for connecting a speaker device. The RS232 female connector can be connected to a RS232 serial port for using the features of the SERIAL0 of the STEPPIII device such as test, configuration and firmware update. The speaker and microphone devices have to be ordered separately.