Wisdom SC-3, Owner'S Manual

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2. RS232 (Continued)
On Startup:
When the SC-3 System Controller is first powered up, it will identify itself to the
external control system via the RS232 port, by sending one of these messages:
•
Ready
•
ERROR
Depending on whether there is at least one preset that has been calibrated and is
available for use. For proper operation, at least one preset must be saved into the
non-volatile memory.
Commands
•
OPERATE - Will bring the unit out of standby and into on state
•
STANDBY - Will bring the unit into standby
•
EQ1 - Will make Preset 1 Live, will also bring the unit out of standby
•
EQ2 - Will make Preset 2 Live, will also bring the unit out of standby
•
EQ3 - Will make Preset 3 Live, will also bring the unit out of standby
•
EQ4 - Will make Preset 4 Live, will also bring the unit out of standby
•
EQOFF - Will make Bypass Live, will also bring the unit out of standby
•
STATUS - Will provide a list of current status to the control system
Commands are terminated by either a CR (carriage return) or LF (line feed)
character. Responses to all commands are either OK or ERROR (when trying to
address a non-existent preset). Your Wisdom Audio dealer can help you take
advantage of these design features to maximize your system’s convenience and
versatility.
3.
DC Trigger In and Out
These 12v trigger jacks provide compatibility with a wide range of products 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-3 in and out of standby. Two such mini-
jacks are provided to allow “daisy-chaining” of this turn-on signal with other
components, including additional 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 polarity as shown
below
Input Signal: 4-20 volts @ less than 10 mA
Output Signal: 12 volts @ 150mA