Roland S-4000S Owner's Manual page 22

4— Panel Descriptions
If desired, use the included adhesive-backed number label sheets to affix channel number labels
to the S-4000S's input and output modules. See Appendix B: Connector Information for channel
number details.
2—SO-DA4 Output Module
Each SO-DA4 Output Module provides four balanced output jacks with male XLR connectors. Signal
output is +4 dBu typical, +22 dBu maximum.
The S-4000S includes two SO-DA4 Output Modules, providing a total of eight output
channels.
3—REAC Module (S-REAC2)
The S-REAC2 Module has two REAC ports for connecting the S-4000S to another REAC device or an
Ethernet switching hub. These ports use Neutrik® EtherCon® RJ45 connectors for a robust connection.
Standard RJ45 plugs can be connected here as well.
• MAIN REAC port—This functions as the primary REAC connection interface. Its status indicator
flashes when communicating with another REAC device.
• BACKUP REAC port—This functions as a redundant backup to the MAIN REAC port. REAC
communication will automatically switch to this port if the MAIN REAC connection fails. Its status
indicator flashes when communicating with another REAC device.
See Chapter 5 for information about the types of Ethernet cables that should be used for
making REAC connections. See the Appendices for Ethernet cable wiring diagrams and Ethernet
switching hub requirements.
4—REAC MODE Switch
This switch sets the S-4000S's REAC device behavior.
• M—configures the S-4000S as a Master REAC device.
• S—configures the S-4000S as a Slave REAC device.
• SP—configures the S-4000S as a Split REAC device.
The REAC MODE switches must be set properly for the system to work. See Chapters 6 and 7 for
information on configuring the system and setting the REAC MODE switches.
5—MIDI Jacks
MIDI jacks are provided for the connection of MIDI devices.
• MIDI IN—Connect the MIDI output of an external MIDI device to this jack.
• MIDI OUT—Connect this jack to the MIDI input of an external MIDI device.
22 S-4000 Digital Snake Owner's Manual