4
68-3539-50 Rev. A
02 21
For information on safety guidelines, regulatory compliances, EMI/EMF compatibility, accessibility, and related topics, see the
Extron Safety and Regulatory Compliance Guide
on the Extron website.
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All trademarks mentioned are the property of their respective owners.
Worldwide Headquarters: Extron USA West, 1025 E. Ball Road, Anaheim, CA 92805, 800.633.9876
DSC 401 and 401 A • Setup Guide (Continued)
Output Rate Reset
If an image cannot be displayed due to an incompatible output rate, you can reset the output rate as follows: With the OSD
off
,
press and hold the
button for approximately 5 seconds to toggle between 4K @ 60 Hz and 1080p @ 60 Hz.
Basic SIS Commands
The DSC 401 and 401 A can be configured with specific SIS commands via USB and, for DSC 401 A, a LAN connection. This
table lists a selection of basic commands. For a full list of SIS commands and variables see the
DSC 401 and 401 A User Guide
.
Command
ASCII Command
(Host to Scaler)
Response
(Scaler to Host)
Additional Description
Output Audio Mute (DSC 401 A Only)
Enable global audio mute
1Z
Amt
1
]
Mute the audio on all outputs.
Disable global audio mute
0Z
Amt
0
]
Unmute the audio on all outputs.
Discrete output mute or unmute
X7!
*
X1)
Z
Amt
X7!
*
X1)]
Set audio mute of output
X7!
to
X1)
.
View global audio mute status
Z
Amt
X1)•X1)]
View the audio mute status on all outputs.
View mute status of an output
X7!
*Z
X1)]
View mute status
X1(
of output
X7!
.
Volume (DSC 401 A Only)
— Affects all analog and digital outputs simultaneously.
Set volume
X5)
V
Vol
X5)]
Set the output volume level to
X5)
.
Increment volume
+V
Vol
X5)]
Increase the output volume by 1 dB (to
X5)
)
.
Decrement volume
-V
Vol
X5)]
Decrease the output volume by 1 dB (to
X5)
)
.
View volume level
V
X5)]
View current volume setting
X5)
.
Output Resolution and Rate
Set output scaler rate
E
1*
X2!
RATE
}
Rate
1*
X2!]
Select output resolution and refresh rate
X2!
.
View output rate
E
1
RATE
}
X2!]
View current output rate
X2!
for the DSC.
Resets
Soft reset
E
ZXXX
}
Zpx
]
Reset all device settings to the factory defaults for a
single power cycle. Retains all user settings and files.
Absolute system reset
E
ZQQQ
}
Zpq
]
Reset all device settings to factory defaults except
the firmware version. Includes setting DHCP to Off, IP
addresses to default, and the administrator password
to
extron
.
NOTE:
The factory configured passwords for all accounts on this device have been set to the device serial number. Passwords are
case sensitive.
In the event of an absolute system reset, the password is reset to
extron
.
Absolute system reset retaining
IP settings
E
ZY
}
Zpy
]
Reset all device settings to factory defaults except
IP addresses, DHCP setting, unit name, and port
mapping.
Front Panel Lock (Executive Mode)
Enable or disable front panel lock
X2(
X
Exe
X2(]
Set the front panel lock mode to
X2(
.
View front panel lock mode
X
X2(]
KEY:
X1)
= On or Off status.
1
= On or enabled,
0
= Off or disabled
X2!
= Output rate:*
34
= 720p @ 60 Hz,
45
= 1080p @ 60 Hz,
73
= 4096x2160 @ 30 Hz,
76
= 4096x2160 @ 60 Hz
*For a complete list of available resolutions and rates, see the
DSC 401 and 401 A User Guide
.
X2(
= Front panel lock mode:
0
= Disabled (front panel unlocked, default),
1
= Enabled (complete front panel lock)
X5)
= Volume:
0
dB to
100
dB in 1.0 dB steps. (Default is
-10
dB.)
X7!
= Output audio number:
1
= Analog audio output (DSC 401 A only),
2
= Embedded HDMI audio output.
