Roland S-4000S Owner's Manual page 23

See Chapter 7 for information about transmitting MIDI data through REAC.
6—REMOTE Connector
This D-Sub 9-pin female connector is provided for remote control and signal monitoring of the S-4000
System from an external device supporting the RS-232C serial interface protocol. Normally, you'd
connect the S-4000R Remote Controller to this connector using the supplied DB-9 cable. If you're
using the S-4000 RCS on a computer, connect the computer's RS-232C port to this connector.
See Chapters 6 and 7 for information about remote control of the S-4000 System. See Appendix
B: Connector Information for a diagram of the REMOTE (RS-232C) connector.
7—System Status Indicators
• REAC—This indicator lights when REAC communication is established within the S-4000 System.
If REAC communication fails, this indicator will flash.
• CTRL—This indicator shows the communication status of RS-232C devices (such as the S-4000R)
connected to the S-4000 System. See Page 62 for more information.
8—MUTE ALL OUTPUTS Button
The MUTE ALL OUTPUTS button is a momentary switch used to temporarily mute the S-4000 System's
audio outputs. This allows for noise-free connection of audio input sources.
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.
9—Power Status and ALARM Indicators
• INT—This indicator lights when the S-4000S is receiving power from its internal power supply.
• EXT—This indicator lights when the S-4000S 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-4000S. See Appendix A:
Troubleshooting for more information.
10—POWER Switch
Use the POWER switch to turn the internal power supply of S-4000S on and off.
When receiving power from an S-240P External Power Supply Unit, the S-4000S will work even
if the POWER switch is in the OFF position.
S-4000 Digital Snake Owner's Manual
4—Panel Descriptions
23