Thank you for purchasing the MIDI Solutions MultiVoltage T8 8-output MIDI Thru Box.
The MIDI Solutions MultiVoltage T8 provides eight MIDI Thru outputs from one MIDI input, allowing additional MIDI
outputs to be added at any point in the MIDI chain. Active circuitry cleans up any skewing of the data bits that has
occurred at the input, resulting in accurate output signals. The MIDI Solutions MultiVoltage T8 is MIDI-powered and
requires no batteries or power supply to operate. It is compatible with products that follow both the 5V and 3.3V MIDI
specifications.
INTRODUCTION
Connect the MIDI Out or Thru of the sending MIDI device to the MIDI In of the T8. Connect the MIDI Thru outputs of
the T8 (
-
) to the MIDI Ins of the receiving MIDI devices. The number of MIDI Solutions products that can
be chained together is dependent on the specifications of the MIDI output port supplying power – for more information
see the MIDI INDICATOR LED section. Since some products make use of unused pins 1 and 3 to pass phantom
power, connections to these pins are provided between the MIDI In and Thru1 jacks. These pins are not connected to
the T8's internal circuitry. It is recommended that the current passing though these pins be limited to 1 amp.
All MIDI messages appearing at the T8's MIDI input are sent to each MIDI Thru output (
-
).
The MIDI Indicator LED will light as soon as the sending device is turned on, and flashes briefly whenever MIDI data
passes through the unit. If the T8's operating voltage drops below the threshold at which it is able to provide a MIDI
standard drive current of 5 mA, its LED will produce a steady on/off warning flash. After rising above this threshold
the LED will continue to produce a steady on/dim flash for 10 seconds. Since the voltage always rises above this
threshold on power up, a steady on/dim flash will always be visible for 10 seconds; during this time the unit is
operating normally and providing the standard drive current. If the T8's operating voltage is below 4V its LED will
produce a dim flash every four seconds, this signal is for diagnostic purposes and does not affect its operation.
Thru1
Thru8
Thru1
Thru8
CONNECTIONS
MIDI INDICATOR LED
OPERATION
3
Sending Device
MIDI Out or Thru
MIDI In
MIDI In
MIDI In
MIDI In
MIDI In
MIDI In
MIDI In
MIDI In
Receiving Device #1
Receiving Device #5
Receiving Device #3
Receiving Device #7
Receiving Device #2
Receiving Device #6
Receiving Device #4
Receiving Device #8
