Lightspeed CAT 860, User Manual

Page: 55 / 88

55
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
Definition:
This command causes the CAT 860 to return a query response packet
where the first of two <Param> characters contains the selection status set by
AICH (<0x90>) and the second contains the value stored in the volume-level
EEPROM variable selected by the AICH (<0x90>) command.
If the command is not received properly, the CAT 860 responds by sending a
<NACK> character.
<CMD>
Symbol
Hex
Value
<Param> Value Definition
AIAV? 0x95
Command Packet:
The controller sends no
<Param> character in the
command packet.
Response Packet:
The CAT 860 sends two
<Param> characters in
the response packet. The
possible values are shown
below:
<Param> #1:
0x80 = TV/VCR
0x81 = CD/DVD
0x82 = COMPUTER
0x83 = AUX IN
0x84 = IR Channel A
0x85 = IR Channel B
0x86 = AUX OUT
<Param> #2:
0xCF = 0 dB
0xCE = -1dB
0xCD = -2dB
0xCC = -3dB
0xA7 = -40dB
0x83 = -76dB
0x82 = -77dB
0x81 = -78B
0x80 = -79dB
ADVANCED COMMAND SET FOR AUDIO MIXER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
4. QUERY ABSOLUTE VOLUME FOR SELECTED AUDIO INPUT COMMAND