230V Users & Tv Interface; Rs-232 Serial Commands For Controlling Subwoofer - Velodyne DD-10+ User Manual

The overdrive protection circuitry operates constantly without being audible under most situations.
If the subwoofer should shut down, reduce the volume setting and shut the subwoofer off until it cools down.
The time the subwoofer takes to cool down depends on the ambient room temperature, but typically at least 10
minutes are required for the subwoofer to cool down and recover from the thermal shutdown.
Also, try plugging the unit into a different wall socket. Overloaded sockets or damaged home wiring circuits can
cause power voltage drops while the subwoofer is drawing high power levels. This condition can result in the
subwoofer shutting down intermittently.
230V Users & TV Interface
For 230-volt Digital DrivePlUS subwoofers, the default video mode is nTSc video format. If your TV is nTSc
compatible, you will have no trouble with this mode. However, certain TVs (especially older ones) may require
PAl or SecAm video. To switch from nTSc to PAl/SecAm mode, press the DOwn ARROw four times followed
by ReSeT. The subwoofer will restart in PAl/SecAm video mode. To revert back to nTSc, restore defaults by
pressing 8-9-0 while on the video output Introductory screen.

RS-232 Serial Commands for Controlling Subwoofer

This section describes the RS-232 protocol specification and commands that can be used to control the
subwoofer. This protocol indicates how Digital DrivePlUS subwoofers receive run-time commands from devices
such as crestron® products.
The communication protocol uses the standard communication settings for the cOm port as shown below.
COM Port Settings
Baud Rate 9600
Data Bits 7 or 8
Parity none
Stop Bits 1
The Digital DrivePLUS serial ports use a standard configuration that allows direct connection to a PC via a
FEMALE to MALE DB-9 RS-232 serial extension cable. Only three pins are required as shown below.
IN Pin OUT Pin
2 Transmit 2 Receive
3 Receive 3 Transmit
5 Ground 5 Ground
NOTE: If you are having trouble communicating with your Digital DrivePlUS subwoofer, check your serial cable
first. It may be a null modem or "crossover" cable, which won't work for communicating with the subwoofer.
RS-232 SERIAL COMMAND FORMATS:
Byte Number
0
1 to 3 or 1 to 4
4 or 5
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Byte Description
'#'
command & Parameter Data
$'
Notes
Header character
3 to 4 AScII characters.See the RS-232 Serial
command table below. These characters
must be in cAPS as the commands are case
sensitive.
Termination character. This character is required
or command is ignored.
Digital Drive Series User's Manual - 11
PLUS