LightSpeed Technologies CAT 860 - Manual (Page 19)

36 37
1. Overview
2. Setup & Use
3. Optional Accessories
4. T
roubleshooting
5. W
arranty
, Safety
& Specifications
1. Overview
2. Setup & Use
3. Optional Accessories
4. T
roubleshooting
5. W
arranty
, Safety
& Specifications
<CMD>
Symbol
Hex
Value
<Param> Value Definition
IAVS 0xE1 Command Packet:
The controller sends no
<Param> character in the
command packet.
Increment the volume of
the selected audio input
by 2 dB. This overrides any
previous mute commands.
The remaining three
unselected audio/video
source inputs remain muted.
Response Packet:
If the command is properly
received, the CAT 860
responds by repeating back
the command packet to
the serial controller with an
added imbedded <Param>
character containing the
value loaded.
If the command is not
received properly, the CAT
860 responds by sending a
<NACK> character.
14. RS-232 SERIAL INTERFACE
COMMAND DEFINITION
CONT’D
BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
2. INCREMENT AUDIO/VIDEO SOURCES COMMAND
<CMD>
Symbol
Hex
Value
<Param> Value Definition
AVS p 0xE0 Command Packet:
The controller sends only
one <Param> character in
the command packet. The
possible values are shown
below:
0x80 = Enable TV/VCR
0x81 = Enable CD/DVD
0x82 = Enable COMPUTER
0x83 = Enable AUX IN
0x84 = Enable All Inputs **
** Power up default used
to facilitate initial system
installation.
Select (enable) one of four
Audio/Video input sources
to receive audio. The
remaining three unselected
Audio/Video input ports
will be muted by sending
the -79dB setting their
corresponding volume
control hardware registers.
Note that muting inputs
does not change the values
in any of the volume-level
EEPROM variables.
Response Packet:
If the command is properly
received, the CAT 860
responds by repeating back
the command packet to the
serial controller.
If the command is not
received properly, the CAT
860 responds by sending a
<NACK> character.
Power up default initially
has all six audio inputs
enabled. The power up
default settings for all six
input volume-level EEPROM
variables is the setting for
-40dB.
14. RS-232 SERIAL INTERFACE
COMMAND DEFINITION
BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS
Audio Input Functions for the A/V Source Group
1. ENABLE AUDIO/VIDEO SOURCE COMMAND