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Set up touch control

Canvus sends the touches made on a video input's window to a network port of its own: the input's remote touch port. SANDER connects to that port over the network and passes the touches to the VC system as a USB touchscreen. You set the connection up once. Canvus keeps the same port for the same capture input after a restart.

1. Check the remote touch network settings

Canvus opens remote touch ports on one network interface of the wall computer. SANDER connects to that interface in one of three ways:

  • Over Wi-Fi, on the network the wall's displays already use to send touch to the wall computer.
  • Over Ethernet, with a cable from SANDER into that same network.
  • Over Ethernet, straight to the wall computer, with a cable from SANDER to a free network port of the wall computer. Set that port as the remote touch interface.

If you installed Canvus from a preconfigured disk image, the interface is already set to the wall's network. For a cable straight to the wall computer, or without a preconfigured image, set it in the [remote-touch] section of mt-canvus.ini, as described in Specify the network connection. The first port is 5010 by default.

2. Open the call on the wall

  1. Start a call or open the VC system's home screen, so the VC system sends a picture.
  2. Open the video inputs menu and select the capture input the VC system is connected to. A window with the VC system's picture opens on the canvas.

To give the input a clearer name in the menu, such as VC system, see Rename a video input.

3. Turn on remote touch and choose the port

  1. On the call window, tap the Remote Control Info button. The panel shows a remote touch switch and the address that SANDER connects to: the wall computer's IP address and the input's port, for example 10.36.0.70:5010.
  2. Turn remote touch on.
  3. To choose the port yourself, tap the edit button next to the address and enter a port in the range shown, from 5010 to 5110 with the default settings. A fixed, written-down port makes SANDER's set-up repeatable.
  4. Write down the IP address and port.

Canvus stores the port for this capture input and uses it again every time the input opens.

4. Connect SANDER

SANDER's set-up runs from its own Wi-Fi access point, whichever way it connects. See the SANDER setup guide.

  1. Join the SANDER-XXXX network from a phone or laptop. The configuration portal opens.
  2. Connect SANDER to the network:
    • Wi-Fi: enter the network the wall uses for touch, and its password.
    • Ethernet: plug in the cable. With NetBridge interface at Auto (follow cable), SANDER uses Ethernet whenever the cable has a link. It gets its address by DHCP, or tick Use static IP on Ethernet and enter the address, gateway and subnet mask. A change of the Ethernet address takes effect after a reboot.
  3. Under the touch source, enter the wall computer's IP address as Host and the input's remote touch port as Port.
  4. Save. SANDER connects to Canvus.

A cable straight to the wall computer has no DHCP server. Give the wall computer's port and SANDER static addresses in the same subnet, for example 192.168.50.1 and 192.168.50.2 with the mask 255.255.255.0, and use the wall computer's address as Host.

SANDER's light shows the state:

  • Red, pulsing: no Wi-Fi.
  • Yellow: Wi-Fi works, but no touch data comes from Canvus. Check the address and port, and that remote touch is on for the input.
  • Green: connected.
  • A blue flash: a touch went to the VC system.

The light follows the Wi-Fi connection. When SANDER uses Ethernet, check the connection on the status page of its web dashboard.

5. Pin the call window

Pin the call window. While it is pinned, a touch on it goes to the VC system instead of moving or resizing the window. Unpin it to move or resize it, then pin it again.

6. Turn on touch on the VC system

Most VC systems detect the touchscreen by themselves. Some need a setting:

  • Teams Rooms on Android: Enable touch screen controls in the device's configuration profile in the Teams admin center.
  • Logitech: assign the touch input to the HDMI output that goes to the wall, in the device's display settings.
  • Cisco: SANDER on a USB-A port and the wall on HDMI output connector 1.

See Supported VC systems for each model.

7. Test

Tap a button in the call window, for example the VC system's settings or a camera control. SANDER flashes blue and the VC system responds where you touched.

If the touch lands in the wrong place:

  • Show the whole picture of the VC system in the window, with nothing cropped.
  • Check the VC system's touch setting for the right display output.
  • Adjust SANDER's coordinate transforms in its web dashboard.

Next step

Run a call.