Create four Mono tracks and name them AUX 1, Aux 2, Aux 3, and Aux 4. Bring up the SX Channel Mixer 1 and pan each track left (AUX 1), right (AUX 2), left (AUX 3), right (AUX 4). Then arm all tracks ready for recording.

Next, you will need to activate your Sub-Groups to allow the input signal to flow via the RPC-1 outputs to the VS-2480. Go to Devices, open up the SX Outputs (F4), and activate the first 4 subgroups. Go back to Devices and open the SX Inputs (F5). As in the following screen capture, activate the first four Inputs (2 stereo in this case).

To make life easier, bring up the Track Mixer (F3) and name them AUX1, 2, 3 and 4. Remembering to arm each AUX track you will be using.

AUX 1 is assigned to BUS 1 (Master), AUX 2 to BUS 2, AUX 3 to BUS 3, and AUX 4 to BUS 4. This merely dictates that the chosen BUSes will travel back to the VS-2480 via the RPC-1 channels. The AUX sends from the 2480 reaches SX as mono signals, but are returned in stereo. To understand this more clearly, BUS 1 returns on RPC-1 channels 1 & 2, BUS 2 on 3 & 4, BUS 3 on 5 & 6, and BUS 4 on 7 & 8. You can of course send 4 mono sends as above, or indeed 2 stereo sends,  8 mono or 4 stereo too!

The next thing you need to do is to open the Device Setup panel and arrange your setting as in the next diagram. The important thing to note here, is that the Direct Monitoring is turned off (not on as in the diagram below). This will allow the incoming signals coming from the 2480 (AUX Sends) to travel to the designated AUX track and carry on via the SX subgroups to the 2480 (Returns). To avoid "flanging" remember to turn off the MIX on your send channels.

Now go to Transport/Sync Setup and use the same settings as below. I am using a Midiman 2 x 2 for my MTC, but this is purely a matter of choice. Choose your own main Midi unit, or of course the RPC-1's own Midi Channel.

Choosing any of the AUX tracks in SX, bring up the channel and choose an effect for that channels Insert. The following screen capture shows us that AUX 1 (track 1) is using Reverb at its insert.

Cubase SX is now ready to receive any of your AUX signals and relay them back to your VS-2480. With the above setup, we are now syncing SX to the VS-2480. Not essential, but it will start your audio sequencer for you every time you press play on the VS-2480.

VS-2480: EZ Routing Screen

Attach your AUX Sends 1/2 & 3/4 outputs to your R-BUS outputs 1/2 & 3/4.

Attach your R-BUS inputs (VS-2480 EZ Routing) to your Mixer Channels 1 - 8. These can be stereo returns (Channel Link for stereo).

Check that your AUX master send faders are at 0dB, as well as your Mixer Channel input faders 1 - 8. On my VS-2480, Track 14 is my snare drum, and I want to send it to SX for a special reverb effect. To do this, I merely open up the AUX 1 on that channel. This sends the snare drum along the AUX 1 master to the R-BUS Output (1), and into my SX Channel 1. It then gets processed by the Channel 1 Insert (Reverb), and is then returned to my VS-2480 Input Channels 1 & 2, which are stereo paired and sent to the Master Bus! Via EZ Routing, this is achieved by simply dragging the R-BUS1 Inputs to your 2480 Channel Inputs 1 - 8.

If like me, you are also running 2 internal FX cards on the VS-2480, then merely substitute the above for AUX Sends 5 - 8, returning them on whatever channels you want: (1 - 8, 9 - 16 or 17 - 24)

That's it! If you have followed my directions carefully, you should now be running your VS-2480 AUX Sends to SX, and entering the realms of Digital RPC-1 FX Sends and Returns!