Midi Solutions MultiVoltage Quadra Thru User manual

OPERATING INSTRUCTIONS
MIDI Solutions
Quadra Thru
MultiVoltage

MIDI Solutions MultiVoltage Quadra Thru Operating Instructions M515-100
2023 MIDI Solutions Inc. All rights reserved.
MIDI Solutions Inc.
PO Box 3010
Vancouver, BC Canada
V6B 3X5
www.midisolutions.com

Thank you for purchasing the MIDI Solutions MultiVoltage Quadra Thru.
The MIDI Solutions MultiVoltage Quadra Thru provides four 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 Quadra Thru 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 of the Thru. Connect , , ,
and of the Thru 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 and jacks. These pins are not connected to the Quadra Thru's internal
circuitry. It is recommended that the current passing though these pins be limited to 1 amp.
All MIDI messages appearing at the Quadra Thru's MIDI input are sent to its MIDI Thru outputs , , , and
.
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 Quadra Thru'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 Quadra Thru'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.
In Thru1 Thru2 Thru3
Thru4
In Thru1
Thru1 Thru2 Thru3
Thru4
Quadra
Quadra
CONNECTIONS
OPERATION
MIDI INDICATOR LED
3
MIDI In
Receiving Device #2
MIDI In
Receiving Device #3
Sending Device
MIDI Out or Thru
MIDI In
Receiving Device #1
MIDI In
Receiving Device #4
MIDI Solutions
TM
MIDI
MIDI Indicator LED
In
Thru3Thru2Thru1 Thru4
Quadra Thru
MultiVoltage Made in Canada

4
MIDI Solutions Inc. warrants this product to be free from defects in material and workmanship for a period of one (1) year from
date of purchase. This warranty is void if the product has been damaged by accident, misuse, alteration, unauthorized repairs
or other causes not arising out of defects in material or workmanship. Under no circumstances will MIDI Solutions be liable for
any loss of profits, benefits, time, interrupted operation, commercial loss, or consequential damages arising out of the use or
inability to use the product. MIDI Solutions specifically disclaims any implied warranties of merchantability and fitness for a
particular purpose. If the product requires service, a Return Merchandise Authorization (RMA) number must be obtained from
MIDI Solutions and the product must be shipped prepaid to a specified Service Center. MIDI Solutions will repair or replace the
product at our discretion and will pay return shipping fees. The customer is responsible for any damage or loss sustained
during shipment in any direction.
WARRANTY