Connecting a PA interface box

The Avaya B179 can be connected to an external PA system using a PA interface box.

Always disconnect the power supply from the electrical outlet before disconnecting or connecting equipment to the Avaya B179.

1 2.5 meter connection cable
2 To mixer/microphone
3 To amplifier/speakers
4 PA interface box
5 AUX port


  1. Connect the PA box to the AUX port on the Avaya B179 with the included cable.
  2. Connect the external amplifier to the RCA connector marked with a speaker.
  3. Connect the microphone mixer to the RCA connector marked with a microphone.