Apple Workgroup Server 8150/110 - Manual (Page 127)

Connecting an audio device
To play or record sound with your server, you can attach a microphone,
amplifier, tape recorder, or a pair of speakers.
Follow these steps to connect an audio device to the server.
1 Make sure that the audio device has a cable with a stereo miniplug connector.
If not, attach an adapter that has a stereo miniplug.
2 Place the audio device near the server.
3 Shut down the server and turn off the audio device.
4 Attach the cable to the audio device and to the sound port on the server.
5 Turn on the server and the audio device and begin working with sound.
About microphones: Be sure to use a microphone designed for your model of
the server, such as the Apple PlainTalk Microphone. You can obtain
information about other microphones from an Apple-authorized dealer.
The Apple PlainTalk Microphone and the software needed for using spoken
commands are available from Apple-authorized dealers.
Choosing audio input options
You use the Sound control panel to choose the audio input device and options
you want.
Follow these steps to choose the sound input device:
1 If you want to use an external device for sound input, connect it to the sound input port,
following the instructions in the previous section.
Connecting an audio device 111