Apple Workgroup Server 8150/110 - Manual (Page 126)

About your server’s sound ports
Your server can play and record stereo sound from a variety of sources. To
provide or reproduce stereo sound, you can connect audio devices to the sound
input and output ports on the server. You can also use the server’s internal CD-
ROM drive to play audio compact discs (CDs).
The sound input port is identified with an icon of a microphone. The sound
output port is identified with an icon of a speaker.
The server’s sound ports accept an audio connector known as a stereo
miniplug. This connector is the type used on headphones for a personal tape
player, for example. If your equipment uses a different type of connector, you
can purchase an adapter at an electronics supply store.
Stereo miniplug
Sound input port
Sound output port
110 Appendix D / Using Stereo Audio