Wisdom Audio Wisdom & Sage Series SC-1 - Manual (Page 17)

17
• OPERATE
• STANDBY
• EQ1 (will also bring SC-1 out of Standby if needed)
• EQ2 (will also bring SC-1 out of Standby if needed)
• EQ3 (will also bring SC-1 out of Standby if needed)
• EQOFF (will also bring SC-1 out of Standby if needed)
• STATUS (will provide a listing of current status to the control
system)
Commands are terminated by either a CR (carriage return) or LF (line feed)
character. Communication parameters are 9600, N, 8, 1. Responses to
all commands are either OK or ERROR (as when trying to address a non-
existent setup memory).
If any of the inputs are clipped due to excessive incoming signal voltage,
the RS-232 will send a message indicating which ADC has experienced
clipping. It will also send a message when clipping has stopped.
The calibration routines are not supported via the RS-232 port. Your in-
staller will need to use the USB port for the calibration process.
7 12v Trigger In and Out
These 12v trigger jacks provide compatibility with a wide range of prod-
ucts to facilitate remote turn-on and turn-off in systems. These 1 ⁄
8
" (3.5
mm) “mini-jacks” allow other components to bring the SC-1 in and out of
standby. Two such mini-jacks are provided to allow “daisy-chaining” of
this turn-on signal with other components, such as amplifiers.
The remote trigger input will be operated by any positive-polarity DC
signal between 3–20 volts (only a few milliamps are required), with tip po-
larity as shown below:
Remote turn-on
tip polarity
+ –
Input Signal: 3-20 volts @ less than 10 mA
Output Signal: 12 volts @ 100 mA
The DC Trigger Input has priority over the front panel switch. Therefore, if
a trigger voltage is present at this input connector, the unit will be forced
on and the front panel switch will be ignored. When the voltage transi-
tions from high to low (off), the unit will go into standby.
When there is no voltage present at the trigger input (either because the
controlling device is not sending, or because the plug is removed), the
front panel switch will operate the SC-1 as you would expect.
The 12v Trigger Output jack is driven to a “high” state of 12 volts a few
seconds after the SC-1 is turned on, and can source as much as 100 mA of
current at 12 volts. This signal may be used in turn to control other com-
ponents, such as the Wisdom Audio SA-series of amplifiers. Each Wisdom
Audio component has a short delay built into its DC trigger system to fa-
cilitate a staggered turn-on sequence.
Your Wisdom Audio dealer can help you take advantage of these design
features to maximize your system’s convenience and versatility.