24
DL-V3 Firmware Reference Manual Rev 2
Chapter 2
DL-V3 Commands
2.3
COMVOUT
Control COM Peripheral Power
The
comvout
command allows you to control the peripheral power supply on specific COM ports.
It supports COM2, COM3 and AUX. No power is supplied for peripheral ports when the receiver is
turned off. COM3 does not have a power pin and there is no direct access to COM3. This command is
used only to control the Bluetooth device.
The
comvout
command enables (on) or disables (off) the supply of power to the specified port. For
COM2, and AUX, power is turned on or off to the power pin associated with each port. The
comvout
command specified for COM3 puts the Bluetooth device to sleep (low power mode) when
comvout
is
set to OFF, or wakes it up from sleep when
comvout
is set to ON.
Peripheral power is disabled in all cases while the receiver is turned off (if COM2 power is enabled,
COM2 power is disabled while the receiver is off, and is enabled again when the receiver is on).
Also, the COM3 peripheral is off when the receiver is off. This applies to Bluetooth and Ethernet.
Syntax
comvout com2|com3|aux on|off
Message ID = 779
Table 6: COM Serial Port Identifiers
Field
Data
Value Used if
Not Specified
Bytes
Format
Units
Offset
1
Header
-
-
-
0
2
Serial port identifier, see
-
4
Enum
none
H
3
Action, see
ON
4
Enum
none
H+4
Binary
ASCII
Description
1
Not used in this command
a
a. Refer to the
OEMV Family Firmware
Reference Manual
for other port
identifiers. If any identifier other than
COM2, COM3 or AUX is used with
this command, it returns an error.
2
COM2
COM port 2
3
COM3
COM port 3
6-15
Not used in this command
a
16
AUX AUX
port
17
Not used in this command
a
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