Saras DOREMiDi UMH-10 USB MIDI Host Box User Manual

Introduction

The Saras DOREMiDi UMH-10 is a compact and highly functional USB MIDI Host Box designed to bridge the gap between USB MIDI devices and traditional 5-pin DIN MIDI interfaces. It allows you to connect USB MIDI controllers, keyboards, or other devices that typically require a computer, directly to hardware MIDI synthesizers, drum machines, or other MIDI-enabled equipment without the need for a computer.

This manual provides comprehensive instructions for setting up, operating, and maintaining your UMH-10 device, ensuring optimal performance and longevity.

Product Overview

The UMH-10 features several key interfaces and indicators for seamless integration into your MIDI setup.

Figure 1: Top view of the DOREMiDi UMH-10 USB MIDI Host Box, showing the DOREMiDi logo and "USB MIDI HOST" text.

Key Features and Interfaces:

• USB MIDI Host Functionality: Converts USB MIDI device interfaces to standard 5-pin MIDI interfaces, enabling direct connection between USB MIDI devices and traditional MIDI hardware.
• USB-B Interface (Power In): Used to supply power to the UMH-10 unit. Power is typically supplied via a standard 5V DC USB power adapter (not included).
• USB-A Interface (USB Host): A standard full-speed USB MIDI Host interface used for connecting your USB MIDI device and providing power to it.
• MIDI 5-Pin Interfaces (MIDI In/Out): High-performance MIDI interfaces with one input and one output, supporting 16 channels of standard MIDI data.
• Indicators:
  • Power Indicator: Illuminates when the device is powered on.
  • USB Work Indicator: Indicates active USB connection and data transfer.
  • MIDI In/Out Indicators: Flash to show MIDI data transmission and reception.

Setup

Follow these steps to set up your DOREMiDi UMH-10 USB MIDI Host Box:

1. Power Connection: Connect a standard 5V DC USB power adapter (not included) to the USB-B "Power In" port on the UMH-10. The power indicator light will illuminate.


Figure 2: Rear view of the UMH-10, highlighting the USB-B "Power In" port.

2. Connect USB MIDI Device: Plug your USB MIDI device (e.g., MIDI keyboard, controller) into the USB-A "USB HOST" port on the UMH-10. The USB work indicator will light up, and the UMH-10 will attempt to recognize and power the connected device.


Figure 3: Front view of the UMH-10, showing the USB-A "USB HOST" port, MIDI OUT, and MIDI IN ports.

3. Connect to MIDI Hardware:
   • To send MIDI data from your USB device to external MIDI hardware, connect a 5-pin DIN MIDI cable from the "MIDI OUT" port of the UMH-10 to the "MIDI IN" port of your MIDI hardware.
   • To receive MIDI data from external MIDI hardware to your USB device, connect a 5-pin DIN MIDI cable from the "MIDI OUT" port of your MIDI hardware to the "MIDI IN" port of the UMH-10.


Figure 4: The UMH-10 connected to a USB-B power cable, illustrating the power input connection.

Operation

Once properly set up, the DOREMiDi UMH-10 operates automatically to facilitate MIDI communication.

• MIDI Data Flow:
  • MIDI data from the connected USB MIDI device will be routed to the UMH-10's "MIDI OUT" port.
  • MIDI data received at the UMH-10's "MIDI IN" port will be sent to the connected USB MIDI device.
• Indicator Lights: Observe the MIDI In/Out indicators. They will flash when MIDI data is actively being transmitted or received, providing visual confirmation of communication.
• Plug and Play: The UMH-10 is designed for plug-and-play operation. No drivers or software installation are required for its basic functionality.

Specifications

Maintenance

To ensure the longevity and proper functioning of your DOREMiDi UMH-10, follow these simple maintenance guidelines:

• Cleaning: Use a soft, dry cloth to wipe the exterior of the device. Avoid using liquid cleaners, solvents, or abrasive materials, as they may damage the finish or internal components.
• Storage: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts, which could damage the internal circuitry or connectors.
• Ventilation: Ensure the device is placed in an area with adequate ventilation to prevent overheating, although this device typically generates minimal heat.

Troubleshooting

If you encounter issues with your DOREMiDi UMH-10, consider the following troubleshooting steps:

• No Power:
  • Ensure the 5V DC USB power adapter is securely connected to the "Power In" port and plugged into a working power outlet.
  • Try a different USB power adapter and cable to rule out faulty accessories.
  • Check if the power indicator light on the UMH-10 is illuminated.
• USB MIDI Device Not Recognized:
  • Ensure your USB MIDI device is properly connected to the "USB HOST" port.
  • Verify that your USB MIDI device is compatible with a standard USB MIDI Host. Some devices may require specific drivers or higher power than the UMH-10 can provide.
  • Try connecting a different USB MIDI device to confirm the UMH-10's USB host functionality.
  • Some USB MIDI devices may require external power if the UMH-10 cannot supply sufficient power.
• No MIDI Data Transmission/Reception:
  • Check all 5-pin DIN MIDI cable connections. Ensure they are securely plugged into the correct "MIDI IN" and "MIDI OUT" ports on both the UMH-10 and your external MIDI hardware.
  • Verify that the MIDI In/Out indicators on the UMH-10 are flashing when data is expected.
  • Confirm that your MIDI hardware is configured to send/receive on the correct MIDI channels.
  • Test with different MIDI cables to rule out faulty cables.
• Intermittent Connection:
  • Ensure all cables are firmly seated and not loose.
  • Avoid placing the device near sources of strong electromagnetic interference.

Warranty and Support

For warranty information or technical support regarding your Saras DOREMiDi UMH-10 USB MIDI Host Box, please contact the seller or manufacturer directly. Retain your proof of purchase for warranty claims.

Manufacturer: Saras