Configuring a Four-Wire Interface Module

The following procedure shows you how to configure the Module Settings for a Four-wire interface module.

To configure the Module Settings for a four-wire interface module:

1. In Menu mode, select Module Settings.

2. From the second menu, select one of the two available ports on the two-wire interface module:

   1. Slot 2/Port A 4W
   2. Slot 2/Port B 4W

Note: In this example, the four-wire module has been fitted to slot 2 in the expansion bay. The expansion bay contains three slots.

4W = four-wire.

3. To associate any available Channel with the selected port, or to disable Channels associations:

1. From the third menu, select Channel Assign.

2. From the fourth menu, select one of the following:

• Disabled (default)

• Channel 1.

• Channel 2.

• Channel 3.

• Channel 4.

• …

3. To confirm the selected setting, press the rotary control.

4. The Program Output allows a program feed associated with the Channel assigned to the four wire port to either be delivered to that 4 wire port alongside the other Channel audio or not. To set the Program Output:

   1. From the third menu, select Program Output.

   2. From the fourth menu, select one of the following:

   • Unmute

   • Mute (default)

5. To confirm the selected setting, press the rotary control.

6. To set the input level for the four-wire port:

   1. From the third menu (third display screen), select Input Gain.

   2. From the fourth menu (fourth display screen), select one of the following:

   • +12dB

   • + 6dB.

   • 0dB (default)

   • -6dB.

   • -12dB

   3. To confirm the selected setting, press the rotary control.

7. To set the output level for the four-wire port:

   1. From the third menu, select Output Gain.

   2. From the fourth menu, select one of the following:

   • +12dB

   • + 6dB.

   • 0dB (default)

   • -6dB.

   • -12dB

8. To confirm the selected setting, press the rotary control.

9. To set the action trigger for the Program Output:

   1. From the third menu, select GPO.

   2. From the fourth menu, select one of the following:

   • Enabled

   • Disabled

10. If you are setting up a continuous audio (program) feed using the four-wire interface module, then you may want to enable the VOX functionality. To help reduce redundant noise, the VOX functionality automatically deactivates and activates the continuous audio feed, at an automatically determined volume threshold.

Note: If you assign a program and a four-wire interface to the same Channel, VOX is automatically enabled.

To enable or disable VOX:

1. From the third menu, select VOX.

2. From the fourth menu, select one of the following:

• Enabled.

• Disabled (default)

3. To confirm the selected setting, press the rotary control.

11. The VOX Delay OFF setting determines the length of time to wait before deactivating the incoming audio. To set the VOX Delay OFF setting:

    1. From the third menu, select VOX Delay OFF.

    2. From the fourth menu, select one of the following:

    • .5 sec (default)

    • 1 sec

    • 2 sec

    • 3 sec

    • 4 sec

    3. To confirm the selected setting, press the rotary control.