Front panel layout

Front panel layout

Items on front panel:

  • Multicolour LED, used as power ON indicator and also for connection status
  • Informative alphanumeric LCD display, with white LED illuminated background
  • Almost hidden multipurpose button, used for IP/MAC address display (short press), application quit (5 seconds press) or hardware reset (over 10 seconds press)

Rear panel layout

Rear panel layout

Items on rear panel (listed from left to right):

  • Fan
  • HDMI monitor output connector
  • USB Mini-B serial terminal connector
  • Ethernet connector
  • 4 × USB Type A peripherals connector
  • DB-25 GPI inputs connector
  • Fuse socket
  • Mains ON/OFF switch
  • IEC mains input connector

More details

JOyVerride 20i‑BMD interface is desinged to operate in conjucntion with Blackmagic Design Videohub series routers, directly via Ethernet. Its function is to provide momentary switching of a video router input, when a contact closure occurs on its assigned camera RCP joystick – that is, when the camera operator keeps pressing on it. When the joystick is released, the contact opens and the video router returns to the previously selected input.

Currently, only momentary switching is provided, latching action is not implemented. This might be considered at a later stage, in case there will be interest thereon.

The interface has a number of 20 GPI inputs, such that a maximum of 20 contact closures from 20 joystick camera RCPs can be connected to it.

Each GPI input can be configured to address a particular video router output. In this way, an arbitrary number of video router inputs can be grouped to serve an arbitrary number of video router outputs – useful, for example, when a single video router is used by two or more camera operators, each one operating a group of camera RCPs on their own video control monitor.

All GPI inputs are floating, isolated by optocouplers and share a floating common 0V rail to which each contact must be closed.

The connection from the interface to the video router itself is done through the local Ethernet network. No additional equipment is required during normal operation.

The interface is delivered with the DHCP mode turned ON, unless otherwise requested.

Configuration is platform independent and can be done by more than one single method:

  • (valid for: credential configuration, network parameters; also GPI inputs assign)
    via serial remote session, by running a serial terminal on a PC connected through the dedicated USB Mini-B terminal connection and then using typical Linux commands.
    - or -

  • (valid for: credential configuration, network parameters; also GPI inputs assign)
    via SSH remote session, by running a SSH terminal on a PC connected through the network and then using typical Linux commands;
    - or -

  • (valid for: credential configuration, network parameters; also GPI inputs assign)
    directly from the interface, by connecting to it a monitor with HDMI input and a USB keyboard and then using the native Linux terminal & typical Linux commands;
    - or -

  • (valid for: basic network parameters, GPI inputs assign)
    via network, using the built-in web page that can be accessed from any web browser that is connected to the same network;

    Note: planned feature, not implemented at the time of this writing.

Setting up the GPI inputs via terminal mode, either local or remote, means editing a plain text configuration file.

Details for each configuration method will be described in the JOyVerride 20i-BMD user manual.

Technical specifications

Parameters Values
Number of GPI inputs 20
GPI inputs connector DB-25 female connector
GPI inputs electrical characteristics Optocoupler isolated;
Each input is connected to an internal floating +5V source with pull-up resistors;
8mA (typ.) flow current per input when shortening it to the floating common 0V rail
Controller Raspberry Pi 2 Model B, running Raspberry Pi OS (previously called Raspbian)
Built-in network connection 10/100 base-T Ethernet, Auto-MDI/X enabled
Terminal port USB Mini-B connector, serial protocol, 115200, 8N1
Peripheral ports 4 × USB 2.0 Type A connectors *
Monitor output HDMI (rev. 1.3 & 1.4) connector, resolutions from 640×350 to 1920×1200 pixels
Boot time About 40 seconds until the GPI function becames operational
Cooling Fan forced ventilation, air direction from left side to rear-right (when viewing the unit from front)
Fan noise 23dB(A)
(fan manufacturer specification)
Fan life expectancy 60000 hours @ 40°C, 65% humidity, 90% CL
(fan manufacturer specification)
Storage ambient temperature -20°~70°C
Operating ambient temperature 0°C~40°C long term, -10°C~50°C fault tolerance
Power input IEC 60320-1 C14 type connector;
ON/OFF switch at the rear side of the unit;
⚠ This equipment must be plugged only into power outlets which provide a working protective earth contact ⚠
Power voltage 100~240VAC voltage range to ensure EMC safety regulations, -10% +6% fault tolerance;
50~60Hz frequency range, ±5% tolerance
Power consumption 15W approx.
Dimensions 1U rack sized front panel, 427.9mm×120mm×37.3mm actual case (excluding case assembly screws)
Weight 2.3kg approx.
Environment compliance Class A digital device – to be used only in commercial and industrial environments;
All component materials, including the case and its painting, comply with the RoHS directive

* For more info regarding the USB electrical specifications and recommended peripherals, please consult the Raspberry Pi Model 2B documentation and associated general information available on the internet.


Back to features summary

User Manual

The user manual is available as a .pdf file.

NOTE: the document is available in English language only.


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