This Article describes how to use the GP/I from a VB-1 for Audio Mute/Unmute.

Relevant Product(s)

• VB-1

Procedure

At the Back Side from the VB-1 you can find the GP/I (Contact Input) marked in yellow.

You can use a Normally Open Contact (NO) or a Normally Closed Contact (NC)
for the Audio Mute.

In the Bose Work Configuration Software in the Tab Configuration / System you can find the Settings for the Contact Input:

CRTL Active in Setting Low is for the usage from a Normally Open Contact
        Open is Status Unmute
        Close is Status Mute

CTRL Active in Setting High is for the usage from a Normally Closed Contact:
        Closed is Status Unmute
        Open is Status Mute

In the Picture you can see the CTRL Active Settings: