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Rs-232 serial interface command definition – LightSpeed Technologies CAT 860 User Manual

Page 26

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50

51

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

AICH?

0x91

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 contains the
selection status set by AICH
(<0x90>).

If the command is not
received properly, the CAT
860 responds by sending a
character.

Response Packet:

The CAT 860 sends only
one character in
the response packet. The
possible values are shown
below:

0x80 = TV/VCR

0x81 = CD/DVD

0x82 = COMPUTER

0x83 = AUX IN

0x84 = IR Channel A

0x85 = IR Channel B

0x86 = AUX OUT

ADVANCED COMMAND SET FOR AUDIO MIXER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
2. QUERY SELECTED AUDIO INPUT COMMAND

14. RS-232 SERIAL INTERFACE
COMMAND DEFINITION

CONT’D

Definition

This command determines which volume-level will be affected by the AIDI
(<0x92>), AIDD (<0x93>), and AIAV (<0x94>) commands.

If the command is properly received, the CAT 860 responds by repeating back
the command packet where the character contains the selection status.

If the command is not received properly, the CAT 860 responds by sending a
character.

Power up default is TV/VCR selected.

These items are included for controllers limited to only a single volume control,
the three parameters on the left allow the AIDI (<92>), AIDD (<93>), AIAV, (<94>)
and AIAV? (<95>) commands to have the same capabilities as the AODI (),
AODD (), AOAV (), AOAV? (), IIDI (), IIDD (), IIAV
(), and IIAV? () commands.

That is, multiple commands will be able to independently affect the values of
the same volume-level EEPROM variables which correspond to the IR CH-A, the
IR CH-B, and the AUX OUT. This is true even if the two commands have been
directed to the same volume-level EEPROM variable. In this case the EEPROM
variable retains the value from the last command issued from the serial controller.

Symbol

Hex

Value

Value

Definition

AICH p

0x90

Command Packet:

The controller sends only
one character in
the command packet. The
possible values are shown
below:

0x80 = TV/VCR**

0x81 = CD/DVD

0x82 = COMPUTER

0x83 = AUX IN

0x84 = IR Channel A

0x85 = IR Channel B

0x86 = AUX OUT

** Power up default

Response Packet:

The CAT 860 sends only
one character in
the response packet. The
possible values are shown
below:

0x80 = TV/VCR

0x81 = CD/DVD

0x82 = COMPUTER

0x83 = AUX IN

0x84 = IR Channel A

0x85 = IR Channel B

0x86 = AUX OUT

ADVANCED COMMAND SET FOR AUDIO MIXER OPERATIONS
Audio Input Functions for the A/V Source Group
1. SELECT AUDIO INPUT COMMAND