O-PC-4 Settings

Swtich settings

Swtich settings
Default port	When a device is switched out or disconnected from the O-PC-4, the system automatically switches to the configured default port. Any port can be assigned as the default port.
Example: If there is a desktop computer in the room with a mouse and keyboard that are used for logging in and for internal video calls, the default port selected will automatically become active when no other device is connected or switched in.

Switch settings

Switch settings

Atomatically switch to port when connecting

When connecting a laptop to the O-PC-4 or an LED socket, the device can be switched in automatically, even if there is a button on the LED socket.

First Device: When the first device is connected, it will automatically gain access to the camera, video sharing, and other connected resources. Any additional laptops that are connected afterward will not be switched in automatically, but they will still receive power for charging.

Every Device: Each new device that connects will be automatically switched in, replacing the previously active device. The previously connected device will continue to be charged, but it will no longer have access to shared resources.

Tip: When using Ochno LED sockets, we recommend not selecting any of the options above. This way, you can connect your device without it starting to share automatically.
To start sharing, simply press the button. This lets you connect your device, prepare what you want to show, and then press the button when you’re ready to share.

Switch settings

Switch settings

Atomatically switch to default port when disconnecting

When disconnecting your laptop from the O-PC-4 or an LED socket, the system will switch back to the default port based on the selected configuration.

Active Device: When a laptop that is currently in use is disconnected, the LED indicator turns off and the system automatically switches back to the default port.

Last Device: When the last connected device (even if it was not switched in) is disconnected, the system also switches back to the default port.

Both options can be enabled and used in combination, depending on the desired behavior.

Tip: If the active device setting is enabled, the LED on the socket will also turn off when you disconnect a device.

Switch settings

Switch settings
Ports that switch automatically	You can select or deselect specific ports to control their switching behavior. Deselecting a port prevents it from being switched in automatically and stops the system from reverting to the default port when the device is disconnected.
Example: If you want one port to be used only for charging, simply deselect the port (turn it gray). When you connect a cable or use an Ochno socket on this port, it will not be switched in — it will only provide power for charging the connected device. However, if you use an LED socket and press the button, the device will be switched in. When you disconnect it, the system will not return to the default port.

Button settings

Button settings
Use Ochno buttons on USB-A port	The O-PC-4 is equipped with two USB-A ports. Both ports can be used, if enabled, with the LED adapter (O-SBC-200-1) when integrating the O-PC-4 with Ochno LED buttons.
Tip: The USB-A port labeled “USB-A (L)” is the one located closest to the Ethernet port.

Button settings

Button settings
Turning off active port with button switches to	-

Button settings

Button settings

Lock active port when it is in use

When using Ochno LED sockets, you can switch between connected laptops simply by pressing the button. However, during presentations, it can be useful to prevent accidental switching if someone presses the button by mistake.

By enabling this option, the currently active user must manually switch out before another user can switch in. If someone tries to switch in by pressing the button while another device is active, nothing will happen.

Tip: This prevents anyone from accidentally pressing a button and switching the active presenter during an MTR meeting or local presentation.

Button settings

Button settings
Disable buttons for port	You can disable the button for a specific port if desired. When this option is selected, the button will still illuminate white to indicate charging, but pressing it will have no effect.
Tip:

Button settings

Button settings
Disable buttons when port is not connected	With this option enabled, the LED button is only functional when a device is connected and charging. If no device is connected, pressing the button will have no effect.
Example: This feature is particularly useful when cleaning staff are wiping the table, as it prevents the system from being unintentionally activated by accidentally pressing the button and switching an LED socket.

UC System settings

UC System settings
BYOD only	Use this setting when you do not have a Microsoft Teams, Zoom, or Google room system in combination with Ochno products.

UC System settings

UC System settings

Android based UC system

Use this setting in combination with an Android video bar. Together with our LED sockets, it allows you to switch between video sharing and BYOD modes on the room system. You can also select which USB-A port on the O-PC-4 is assigned to the Android system if other devices are simultaneously connected to the O-PC-4.

This setting can also be used with an Android video bar that features a fully functional USB-C input. In this configuration, the Ochno EC cable is used as a single connection from the table to the device, enabling both video sharing and BYOD functionality through one cable.

Tips: If you have a mix of BYOD rooms and, for example, Microsoft Teams Rooms, use this setting for the BYOD rooms as well. This ensures a consistent user experience across all rooms, so everyone easily recognizes the different light states on the LED sockets when they enter a room.

UC System settings

UC System settings
Android based UC system on Ochno Node	Use this setting in combination with the Ochno O-PC-4, O-PC-4-Node, Ochno EC cable, and an Android video bar where the USB and video signals need to be split to the bar. All switching is handled by the O-PC-4-Node instead of the O-PC-4. Together with our LED sockets, this configuration allows you to switch between video sharing and BYOD modes on the room system.

UC System settings

UC System settings
Windows based UC system	Use this setting when the Windows NUC is installed under the table next to the O-PC-4. All peripherals will connect through the Ochno system and be routed back to the MTR system when not in BYOD mode. You can select which USB-C port is assigned to the NUC, providing greater flexibility in your setup. Together with our LED sockets, this configuration allows you to easily switch between video sharing only and BYOD modes.

UC System settings

UC System settings
Windows based UC system	Use this setting when the Windows NUC is installed behind the screen, and the O-PC-4-Node and Ochno EC cable are used from the table to behind the wall. All peripherals are connected to the O-PC-4-Node and routed back to the MTR system when not in BYOD mode. You can assign which of the two USB-C ports to use, providing flexibility in your setup. Together with our LED sockets, this configuration allows you to easily switch between video sharing only and BYOD modes.

UC System settings

UC System settings
Profiles for buttons - Buttons cycle through modes	When using this mode, each quick press of the button cycles through the available states — charging, video sharing, BYOD, and then back to charging. We recommend using this setting in combination with the Microsoft Integration, which allows the system to detect whether a meeting is active and automatically select the appropriate mode when the button is pressed.

UC System settings

UC System settings

Profiles for buttons -
Buttons cycle through modes

When using this mode, each quick press of the button cycles through the available states — charging, video sharing, BYOD, and then back to charging. You can also choose which mode the first press activates — UC (video sharing) or BYOD. We recommend starting in UC mode, as in most cases where Ochno is used with a room system, you typically want to begin by sharing video into an active meeting.

We also recommend using this setting in combination with the Microsoft Integration, which allows the system to detect whether a meeting is active and automatically select the appropriate mode when the button is pressed.

Example:

UC System settings

UC System settings

Profiles for buttons -
Holding button changes mode

When using this mode, each quick press of the button toggles between charging mode and one additional mode. To activate the third mode, press and hold the button for four seconds until it switches over. This configuration is recommended when no system integration is set up, allowing the first press to enable video sharing, while switching to BYOD requires a press-and-hold action.

You can select which mode starts first — UC or BYOD — using the Ports start in mode setting.

You can also define how the system should behave when a device is disconnected using the UC mode resets automatically option — whether after a simple mode switch, an active disconnect, or when the last connected device is removed. This ensures the system automatically returns to its default state, so that the next user entering the room always starts in the same mode, minimizing confusion and simplifying operation.

This is the most commonly used setting because it prevents accidentally switching too quickly and entering BYOD mode when the system was initially in video sharing mode.

UC System settings

UC System settings
Profiles for buttons - Use different modes on different prots	With this selection, you can only switch between charging mode and the selected mode for the specific port.
Example:

UC System settings

UC System settings
Profiles for buttons - Custom configuration
Example:

Video settings

Video settings
Turn screen on/off using HDMI CEC	This allows you to use standard HDMI-CEC to turn the screen on and off.
Tips. Were useful when you have a older screen, consumer screen where wake on signal over HDMI is not working in a correct way.

Video settings

Video settings

Video handshake profile -
advanced settings

The advanced settings allow you to configure delays on the HDMI signal.

HDMI Setup: This controls the 5V line present in the HDMI signal.

HPD Setup: This configures the Hot Plug Detect (HPD) signal when the video is transmitted via USB-C.

Delays are set in milliseconds. Please note that the O-PC-4 does not modify the video signal — it functions as a pure HDMI pass-through. The EDID presented by the screen is what the connected laptop will detect.

Tips. This is useful when you have an older or consumer-grade screen where wake-on-signal via HDMI does not work correctly. Some screens may have difficulty detecting a fast 5V signal, so adding delays can be very helpful.

USB settings

USB settings
Share network to active USB-C port	Through an Ethernet cable connected to the O-PC-4, you can share the internet connection with a laptop connected to the switch. The network speed can be set to 100 Mb, 1 Gb, or Off. When set to 1 Gb, please note that the USB-A ports on the O-PC-4 will be limited to USB 2.0, and will no longer operate at USB 3.0 speeds.

USB settings

USB settings
USB handshake profile - advance settings	Similar to the video signal, we can add delays to the USB signal. Delays can be applied to both USB-C and USB-A ports when power is supplied to the USB signal and a laptop is connected.

USB settings

USB settings
UFP port role - use carefully	This settings should be handle with care. DRP, default sink - DRP, default source - Source - Sink -

USB advanced settings

USB advanced settings

Turn of port when its not active

This setting allows you to turn off a port when it is not in use. To reactivate the port, it must be set as the default port, so that when switching out, the default port is automatically selected.

Example. You have a media player that shows video on your screen when the room is not being used for meetings, connected to the O-PC-4 via USB-C. When you connect a laptop to another port, the media player’s port is automatically turned off, preventing any interference. When you disconnect the laptop or switch out, the media player is reactivated and resumes showing video on the screen.

USB advanced settings

USB advanced settings

Turn of USB passthroughs when no port is active

When this option is selected, USB power on the USB-A and USB-C ports of the O-PC-4 is turned off, effectively disconnecting the peripherals as if their cables were physically unplugged.

Example. This is useful when you have an MTR videobar that only reacts to a connection, not the USB signal itself, or if you have an MTR system that requires unplugging the cable to exit BYOD mode. This setting allows the system to automatically switch back to MTR mode when you disconnect your laptop.

O-PC-4 Settings

Example: If there is a desktop computer in the room with a mouse and keyboard that are used for logging in and for internal video calls, the default port selected will automatically become active when no other device is connected or switched in.

Tip: If the active device setting is enabled, the LED on the socket will also turn off when you disconnect a device.

Tip: The USB-A port labeled “USB-A (L)” is the one located closest to the Ethernet port.

Tip: This prevents anyone from accidentally pressing a button and switching the active presenter during an MTR meeting or local presentation.

Tip:

Example: This feature is particularly useful when cleaning staff are wiping the table, as it prevents the system from being unintentionally activated by accidentally pressing the button and switching an LED socket.

Tips: If you have a mix of BYOD rooms and, for example, Microsoft Teams Rooms, use this setting for the BYOD rooms as well. This ensures a consistent user experience across all rooms, so everyone easily recognizes the different light states on the LED sockets when they enter a room.

Example:

This is the most commonly used setting because it prevents accidentally switching too quickly and entering BYOD mode when the system was initially in video sharing mode.

Example:

Example:

Tips. Were useful when you have a older screen, consumer screen where wake on signal over HDMI is not working in a correct way.

Tips. This is useful when you have an older or consumer-grade screen where wake-on-signal via HDMI does not work correctly. Some screens may have difficulty detecting a fast 5V signal, so adding delays can be very helpful.