Conductive Labs MRCC 880 User manual

CONDUCYIVE LABS
880 User Guide
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Contents
Support ........................................................................................................ 3
What’s in the box ......................................................................................... 4
Requirements............................................................................................... 4
Specifications ............................................................................................... 4
Precautions .................................................................................................. 5
Getting Started............................................................................................. 6
Overview of MRCC 880 Controls and Ports................................................ 7
Routing DIN Connections .......................................................................... 8
Routing USB MIDI Virtual Inputs (from DAW to DIN) ................................. 8
Routing DIN Inputs to USB Virtual Outputs (from DIN to DAW) ................. 9
Check Your Routings ................................................................................. 9
Saving and Loading Presets........................................................................... 9
Using the MIDI Panic Button ....................................................................... 10
Using MIDI Channel Split Mode .................................................................. 11
Using the Clock Filter.................................................................................. 11
Using the SSC (Start/Stop/Continue) Filter.................................................. 11
Using the MIDI Monitor Mode.................................................................... 12
Using MRCC 880 as an MRCC MIDI Router Control Center Expansion.......... 12
Using More than One MRCC 880 ................................................................ 13
MIDI System Exclusive (SysEx) Messages..................................................... 14
Firmware Updates...................................................................................... 14
Regulatory Compliance............................................................................... 15

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Welcome, and thank you for choosing Conductive Labs for your MIDI studio
needs! We really appreciate it! If you would be so kind, tag your social media
posts with #MRCC so we can find them. We would love to see how MRCC 880
improves your studio and makes it a better place to create. Share your stories,
music and pictures on our forums in the “Show me what you got!” section.
Sincerely,
Steve and Darryl
Support for MRCC 880 is provided by Conductive Labs and our experienced
users on the Conductive Labs forums.Please register on the forums for
questions not answered in this guide or the MRCC User Manual. As part of
forum registration, you will receive a verification email. If you do not receive it
check your spam/junk folder, the verification emails sometimes end up there. If
you experience any problem with registering on the forums, let us know using
the contact page on our website and we’ll get you set up. You can register on
the forums at: https://conductivelabs.com/forum
You may also want to check the FAQs which answer common questions,
provide usage tips, and other important details that are outside the scope of
this manual.
Opt-in to our Newsletter at conductivelabs.com for new product
announcements and product update news.

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What’s in the box
1. MRCC 880 MIDI Router
2. USB Type A to Type B cable, 2M
3. This Guide
Requirements
Power supply (not included): USB 5V DC, 80mA. Virtually any USB 2.0 or greater
host port or quality phone charger will be sufficient.
Operating Requirements:
Works with USB hosts that support USB MIDI class compliant devices; including
Conductive Labs MRCC, Microsoft Windows 10 and 11 PCs, MacOS, iPad, and
iPhone, most Android tablets and phones, and Linux too.
Software such as a Digital Audio Workstation (DAW) is required to send MIDI
data from your PC to the MRCC 880.
Specifications
The MRCC may be used as a 4x4 standalone MIDI router or can be used with a
PC/MAC or other USB Host device for 8x8 routable ports.
•Four 5 pin DIN inputs. One shared 3.5MM TRS MIDI Type A jack, choose 5
pin DIN 1 or A jack but not both.
•Four 5 pin DIN outputs, with 3.5MM TRS MIDI thru Type A jack. Both can be
used at once , sharing the same routing.
•One USB 2.0 type B socket for connecting to your PC or USB power supply
for a DAWless setup. Four USB MIDI virtual inputs and four outputs
individually routable.
•Green LED indicators for Inputs and Blue indicators for Outputs.
•Save/Load 4x presets, plus Init and “working” presets.
•Dedicated buttons for Save/Load presets, MIDI Panic, Channel Splitter,
Clock Filter, Start/Stop/Continue Filter, MIDI monitor mode, and dedicated
power switch and recessed firmware update button.
•Automatic MIDI merging when different inputs are routed to a common
output.

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Precautions, not limited to:
1. Read and follow all instructions.
2. Unplug before cleaning and use only a soft dry cloth. Do not use any
cleaners, it could damage the silkscreen ink.
3. Do not use the instrument near water or moisture, such as a bathtub, sink,
swimming pool or similar place.
4. Do not expose the instrument to hot sunlight.
5. Do not spill any kind of liquid onto the instrument.
6. Do not place the instrument in an unstable position where it might
accidentally fall. Do not place heavy objects on the instrument.
7. Do not open or insert anything into the instrument that may cause a fire or
electrical shock.
8. Always contact Conductive Labs LLC if you have an issue. You will invalidate
your warranty if you open and remove the cover unless instructed to do so by
Conductive Labs.
9. Do not use the instrument when there is a gas leak nearby.
10. Conductive Labs LLC is not responsible for any damage or data loss caused
by improper operation of the instrument.
Not following the above Precautions will void the manufacturer’s warranty.

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Getting Started
1. MRCC 880 is powered by the USB Type B port connection. Connect the
included USB cable between the MRCC 880 and your PC or USB power
supply (not included).
2. Turn on the power switch and the LEDs will light briefly in sequence, then
will light an Input when it’s ready.
3. Connect MIDI input devices such as keyboards and sequencers to the MIDI
DIN inputs.
Note: the 3.5MM jacks labeled “A” are MIDI TRS standard inputs and
outputs. You can choose one of the inputs (A or DIN 1). Do not connect
more than one device to an Input with a shared jack.
4. Connect MIDI sound modules, such as synthesizers to the MIDI outputs.
Note: You can use the A and DIN Outputs simultaneously, they will send
the same MIDI data, so be aware of channel choices.
Hint: Life will be rainbows and unicorns if your hardware MIDI controllers
and sound modules are labeled with their assigned MIDI channels!
5. Set up your DAW (Digital Audio Workstation), if you use one. Each DAW
will have different configuration steps best described by the vendor of the
DAW. YouTube.com is a good resource for learning how to setup a MIDI
interface with your specific system, MIDI interfaces mostly work the same.
Check your DAW documentation for setting up MIDI tracks and virtual
instruments, such as VSTs. For MacOS, use Audio MIDI Setup. See
support.apple.com for details.

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Overview of MRCC 880 Controls and Ports
(h) = Press and hold the button while selecting an input port to apply the filter
to. MRCC 880 will blink the LEDs to indicate appropriate port choices.
Note: The MRCC provides 3.5MM MIDI TRS type “A” jacks as adopted by the
MIDI Association. However, before the standard was adopted different
manufacturers implemented MIDI on TRS jacks differently. The standard type
“A” has DIN pin 5 on the Tip, pin 4 on the Ring and pin 2 on the Sleeve. A
3.5MM TRS adapter that swaps the Tip and Ring may be used for devices that
implemented TRS type “B” with pin 4 on Tip and pin 5 on Ring.

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Routing DIN Connections
Select a DIN input, its LED lights green. Then select which output(s) to
route to. That’s it!
Note: MIDI Merging is automatic when more than one input is
routed to a common output, the MIDI data from the inputs will
be merged to the common output.
Routing USB MIDI Virtual Inputs (from DAW to DIN)
1. Press and hold the PC Input button, the 4 Input LEDs will light dim
green.
2. Select a virtual port, such as port 1, by selecting MIDI IN 1, it will light
bright green.
3. Release the PC Input button. The PC Input LED will stay lit green once a
virtual Input has been selected.
4. Now select DIN Output(s) to route to.
5. In your DAW or MIDI application, select the USB MIDI virtual port
“MRCC 880”, which is Input 1 as selected above. MIDI sent from the
DAW will route to the selected DIN Outputs.
The USB MIDI Virtual Ports will look something like this (as seen in the
popular MIDI OX MIDI monitoring utility for Windows):

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The way the ports are labeled can vary between operating systems and
applications.
Routing DIN Inputs to USB Virtual Outputs (from DIN to DAW)
1. Select a DIN input, its LED lights green.
2. Press and hold the PC Output button, the 4 output LEDs light a dim
blue.
3. Select an output, such as output 1 by selecting MIDI OUT 1. Its LED will
light up bright blue.
4. In your DAW or MIDI application, receive MIDI from DIN 1 by selecting
“MRCC 880”, which is USB MIDI virtual port 1.
Now your application will receive MIDI sent on DIN input 1.
Check Your Routings
To see what routings have been made, press each DIN Input button in
sequence and watch for blue LEDs to light to see if there are any Outputs
routed.
Press and hold the PC Input button, then press each Input in sequence and
watch to see if any blue Output LEDs are lighted.
Saving and Loading Presets
MRCC 880 can save four sets of routing and filter settings. The Save slots are
stored by pressing and holding the Save/Load button, and selecting a MIDI IN
button (1-4).

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To save your current settings to preset slot 1, press and hold the Save/Load
button, then press and release MIDI IN button 1.
To recall a saved preset, press and hold the Save/Load button, and select the
corresponding MIDI OUT button, for example MIDI OUT 1 to recall saved
setting 1.
To re-initialize a save slot, that is to erase the saved settings, press and hold the
Save/Load button, then press the PC out button (the one on the right with the
blue LED). The current preset will be reset to factory defaults in memory. Save
it to keep the factory settings.
It is also possible to make a “working preset” by saving using the PC input
button. This is useful for making a temporary routing configuration without
replacing one of the four saved presets. Save to this extra slot and it will be
restored on the next power cycle, but it cannot be recalled once another preset
slot is loaded.
Using the MIDI Panic Button
If you experience a stuck note on your synth, press the Panic button to send
MIDI CC 120, “All Sound Off” to all outputs.