LightSpeed Technologies CAT 860 - Manual (Page 24)

46 47
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
14. RS-232 SERIAL INTERFACE
COMMAND DEFINITION
CONT’D
Symbol
Hex
Value
Value Definition
QVMI? 0xED Command Packet:
The controller sends no
character in the
command packet.
This command causes the
CAT 860 to return a query
response packet where the
added character
contains the absolute
volume-level for the
microphone audio inputs.
Response Packet:
If the command is properly
received, the CAT 860
responds by repeating back
the command packet to the
serial controller with the
added character
containing the absolute
volume level for the audio/
video sources.
The possible values are
shown below:
0xCF = 0 dB
0xCE = -1dB
0xCD = -2dB
0xCC = -3dB
0xA7 = -40dB
0x83 = -76dB
0x82 = -77dB
0x81 = -78B
0x80 = -79dB
If the command is not
received properly, the CAT
860 responds by sending a
character.
BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
13. QUERY ABSOLUTE VOLUME MICROPHONE AUDIO INPUT COMMAND
13. RS-232 SERIAL INTERFACE
PROGRAMMING
CONT’D
Symbol
Hex
Value
Value Definition
QVAV? 0xEC Command Packet:
The controller sends no
character in the
command packet.
This command causes the
CAT 860 to return a query
response packet where the
added imbedded
character contains the
absolute volume-level for
the audio/video sources
inputs.
Response Packet:
If the command is properly
received, the CAT 860
responds by repeating back
the command packet to the
serial controller with the
added character
containing the absolute
volume level for the audio/
video sources.
The possible values are
shown below:
0xCF = 0 dB
0xCE = -1dB
0xCD = -2dB
0xCC = -3dB
0xA7 = -40dB
If the command is not
received properly, the CAT
860 responds by sending a
character.
BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
12. QUERY ABSOLUTE VOLUME AUDIO/VIDEO SOURCE COMMAND