Krell Industries MASTER REFERENCE SUBWOOFER - Manual (Page 52)

(SECTION SIX: Optional Connections continued)
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RS-232
The RS-232 port (13) allows you to send operational instructions directly into the
Master Reference Subwoofer from a computer-based control system, providing
integrated control of all subwoofer functions. This feature also allows the Master
Reference Subwoofer to report operational status, through the RS-232 status feed-
back system.
For information on how to send RS-232 commands to operate the Master Reference
Subwoofer, see the RS-232 Port: Sending Commands and Interpreting Data
developer’s reference.
12 VDC (12 V Trigger)
The 12 VDC ( 12 V trigger) output (10) on the Master Reference Subwoofer allows
you to turn other components on or off, or to and from stand-by automatically,
through the remote control. The 12 V trigger input (10) allows you to turn the sub-
woofer on using the remote control of another component with a 12 V trigger. This
feature allows whole systems or parts of systems to be easily coordinated.
The 12 VDC LFE input (11) for the Master Reference Subwoofer can be used to
turn the LFE inputs (17, 18, 19) on or off. See C. Choosing Stereo, LFE, or
Stereo/LFE, on page 35, for more information.