Line Ringing Indicators and VX

Updated 1 year ago by John (JP) Powell


How to set up an external indicator for when a line is ringing in a VX studio.

Notice: The VX Engine does not have any physical GPIO / parallel ports built in. In order to create a physical closure, you'll need an available port on a GPIO Node, Powerstation, QoR Engine, or Element GPIO/PSU on the network connected to the VX's LAN port.

In this example, we will configure the Livewire GPIO in a VX Studio to trigger an output when a line is ringing. This GPO can then be wired to an external lamp which will indicate the presence of a ringing line.

Configure GPIO in the VX Studio

  1. Using your connected browser, navigate to the desired VX Studio configuration page.
  2. Set the Current Show to No Show to allow configuration changes
You may need to un-load the show on the console if you have an Axia console that binds a VX Show to a VX Studio. You'll obviously want to do this config change when no one is using the Studio.
  1. Under the GPIO Indications section, select the desired indicator from the Add New drop-down list. In this example, we will configure an output for when any of the lines in the Studio are ringing.
  2. Enter a Livewire channel number into the Channel field to be used for the GPIO and select the output pin. Here, we will use channel 12345 and we will be controlling output pin 1 of the GPIO port.
  3. Since we are sending a closure command to a node, select To GPIO for Type.
  4. Click Apply and re-assign the Show to the Studio using the Current Show drop-down box and the Change button.
This GPIO channel can be ANY valid Livewire channel (1 - 32767) but it should NOT be associated with any audio channel. You will not be able to use the "browse" button next to the channel box. Simple type the channel number in the box.

Configure the physical GPIO port

Once you've located an available port on a GPIO node, Powerstation, QoR Engine, or Element GPIO/PSU, go to its configuration web page to configure the port. In this example, we'll use a QoR Engine, but other devices are configured in a similar manner.

  1. In your connected browser, navigate to the GPIO page of the QOR.
  2. Select a port under Local GPIO Configuration, label it, set it for Livewire and enter the channel number you configured in the previous steps
  3. Click Apply
Notice: GPIO Livewire channels are not advertised to the network, so they will not show up in the browse streams window. As a result, we are entering the channel number by hand.

At this point, you could test by calling into the studio and observing the Local GPIO Status indicators.

Wire up the GPIO port

  1. Connect pin 7 (Output Common) to pin 8 (Ground). This configures the outputs to close to ground when active.
  2. Connect pin 9 (+5V DC) to one side of the relay's coil.
  3. Connect pin 1 (Output 1) to the other side of the relay coil (with appropriate flyback diode).
  1. Use the N.O. contacts of your relay to drive the indicator you have.
We are incorporating relays in this configuration because the +5V DC pin likely won't be able to source enough current to drive most indicators.

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