Hooking Up
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| Here's how the VS-2480 interfaces with the rest of the world. ANALOG I/OXLR/TRS InputsThe XLR and TRS inputs are the connections to the 16 mic preamps. The XLR connectors also have the ability to provide phantom power for condenser mics. Avoid using both the XLR and the TRS inputs for the same channel (see Figure 13.1). I once had an SM57 plugged into channel 1 XLR and also had a tone generator plugged into channel 1 TRS. I noticed a faint tone in the studio, and sure enough, the tone was coming from the SM57! Figure 13.1. Both the XLR and the TRS inputs pass through the VS-2480's preamps. The only way to bypass the VS-2480's onboard preamps is with a digital signal HI-ZThe HI-Z input is for your guitar, bass, or any other instrument with a standard ¼" guitar cable connection. The pushbutton next to the HI-Z input must be pressed in to connect the HI-Z input to input channel 16. While the HI-Z input is enabled, the TRS input for channel 16 is disabled.
TRS OutputsThere are eight analog balanced line level outputs available on the VS-2480. Normally, outputs 1 and 2 are master outputs, and outputs 7 and 8 are Monitor outputs. The remaining four outputs may be assigned in pairs to aux busses or direct outputs. DIGITAL I/OR-BUSEach of the two R-BUS connectors can send and receive eight channels of digital audio to and from an R-BUS “enabled system. Roland has produced several devices that transfer audio via R-BUS, such as other digital recorders and digital mixers, input expanders, keyboard modules, and digital interfaces such as the DIF-AT24 ADAT interface device. SPDIFCoax and optical SPDIF connectors will send and receive digital audio to and from any device that supports SPDIF, from CD and MD players to high-end mic preamps and effects processors. Digital Connection ConsiderationsMaster Clock The Master Clock selection is found in the UTILITY Figure 13.2. Project parameters Improperly setting the Master Clock will result in loud clicks and pops on the digital input channels. Normally, the VS-2480's internal clock (INT) is the Master Clock source, but when recording from either of the two SPDIF connections, set the Master Clock source to your audio source. Many R-BUS devices have the ability to receive Master Clock signals from the VS-2480, or you may choose to clock the VS-2480 from the R-BUS device. Sync Parameters Sync refers to keeping several machines synchronized during record, play, and transport functions. Many input devices, such as preamps or compressors, do not require synchronization at all. Other devices, such as sequencers, drum machines, and other multitrack recorders, need to stay synchronized to the timeline to be useful. The Sync settings are found in the UTILITY Figure 13.3. Sync parameters The VS-2480 may receive MTC sync signals from R-BUS source, MIDI IN, or the SMPTE input connection. The VS-2480 may provide its sync signal on either R-BUS port or the MIDI OUT port. MIDI Machine Code MIDI Machine Code (MMC) is a set of messages that control transport functions. The MIDI settings are found in the UTILITY Figure 13.4. MIDI parameters The VS-2480 may be set to send, receive, or ignore MMC commands. If you wish to send MMC commands, be sure to set the SysEx.Tx Sw (SystemExclusive Transmit Switch) to ON. Other ConnectionsMIDI In/OutMIDI can be used to synchronize drum machines and other MIDI sequencers to the VS-2480. MIDI IN allows the 2480 to sync to other devices via MTC timecode. Word Clock and SMPTEThese connectors allow the VS-2480 to be synchronized to a common timing clock, as utilized in many professional recording and editing facilities for both audio and video. SCSIThe SCSI connector allows the VS-2480 to exchange data with external storage devices, such as the Roland VS-CDRII/III or external SCSI hard drives . |
PROJECT PARAMETER menu item, as shown in Figure 13.2. 
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