Roland S-4000S - Page 27

S-4000 Digital Snake Owner’s Manual 27
4—Panel Descriptions
Press and hold the MUTE ALL OUTPUTS button. After approximately 1.5 seconds, its indicator lights.
While the indicator is lit, the audio outputs of all connected REAC devices are muted.
The system outputs will become un-muted a few seconds after MUTE ALL OUTPUTS is released.
If audio is passing through the system when MUTE ALL OUTPUTS is released, the sound may be
distorted until the system outputs are completely un-muted.
7—INPUT 1-8 Connector
Eight balanced audio input channels are provided on a single female DB-25 connector. Each input
channel accepts +4 dBu line level signals (+22 dBu maximum). Connect an optional SC-A0805DF
breakout cable to this connector.
8—OUTPUT Connectors (1-8, 9-16, 17-24, 25-32)
Each OUTPUT connector provides eight balanced audio output channels on a single female DB-25
connector. Signal output is +4 dBu typical (+22 dBu maximum). Connect an optional SC-A0805DM
breakout cable to this connector.
If you wish to purchase third-party breakout cables—or fabricate your own—for use with the
S-4000H, see Appendix B: Connector Information for DB-25 connector requirements and pin out
diagrams of the INPUT and OUTPUT connectors.
9—Power Status and ALARM Indicators
• INT—This indicator lights when the S-4000H is receiving power from its internal power supply.
• EXT—This indicator lights when the S-4000H is receiving power from an optional S-240P External
Power Supply Unit connected to its rear panel EXT. POWER DC INPUT jack.
• ALARM—This indicator lights when a problem is detected in the S-4000H. See Appendix A:
Troubleshooting for more information.
10—POWER Switch
Use the POWER switch to turn the internal power supply of S-4000H on and off.
When receiving power from an S-240P External Power Supply Unit, the S-4000H will work even
if the POWER switch is in the OFF position.
11—Air Intake Vents
The S-4000H contains cooling fans that prevent the unit from overheating. The air intake vents provide
fresh air for the cooling fans.
Be sure never to block the air intake vents. Doing so may cause the S-4000H to overheat and
be damaged.