RME ARC-USB Advanced Remote Control
This wired remote has been designed for direct access to the most
frequently used actions and commands of TotalMix FX, being an
indispensable tool in the studio's daily applications. Its extremely
flexible configuration through TotalMix FX will simplify workflow and
greatly increase the usability of the RME interface in most real world
The ARC USB is a USB 1.1 (UAC1) MIDI remote control, natively compatible
to Windows and Mac OS X. As soon as it is present in the operating
system TotaIMix FX will detect it and communicate with it, without
disturbing other remote controls. Therefore it is also not necessary to
switch the ARC USB on or off within TotalMix FX - it will just work.
because it communicates with TotalMix FX (via USB) it is compatible to
all RME audio interfaces that are detected and supported by TotalMix FX.
This goes back to RME interfaces released 2001!
As soon as the ARC USB is connected to a computer any button press or
wheel turning will cause the respective action performed by TotalMix FX -
and therefore also by the RME audio interface.
With the UFX+ and UFX II the ARC USB can also be connected directly to
these devices, currently the only RME interfaces having an internal USB
1.1 host with matching connector. This way of connecting is handy in
stand-alone mode, where the ARC USB is also supported by the UFX+ and
The ARC USB is bus powered, but draws only little current. Also it uses
USB 1.1 as bus standard, which these days is uncritical due to its lower
frequency and speed demands. USB 2 cables with 5 meter to 10 meter
length, and cheap USB 2 cable extensions that usually make a bus-powered
interface fail will work perfectly for the ARC USB. Still at higher
lengths RME recommends to use active USB 2 cables (also called extension
or repeater cables), which are not expensive and work over lengths of
more than 20 meters.
The ARC USB can control several interfaces simultaneously, which happens
automatically as the Key Commands dialog in TotalMix FX is specific to
the currently selected audio interface. Just assign only the functions
that are desired for each respective interface. After that the ARC USB
keys and the encoder wheel remote the respective interface where they
have been assigned to, without the need to further switch or select
anything in normal operation.
The lower three keys have a useful diagnostic functionality.
Talkback: is lit dim as soon as the ARC USB is running on 5 V USB bus power.
Speaker B: is lit dim as soon as a USB communication is possible.
DIM: is lit dim as soon as a communication with TotalMix FX is established.
Therefore in normal operation all three lower keys are lit dim constantly.
The ARC USB comes with a standard set of Key Commands that
already cover most usage scenarios, printed directly beneath the keys:
Row 1 and 2: activating Snapshots 1 to 8.
Row 3: Mono, Volume Phones 1, Volume Phones 2, External Input
Lower keys: Talkback, Speaker B, Dim.
A set of stickers with all currently available TotalMix FX commands is
included. These can be used to label all keys reflecting the current
The rotary encoder wheel is used to change various parameters, like gain and volume. It is pro-grammable in TotalMix FX as well.