LightSpeed Technologies CAT 860 user manual Cmd

5. Warranty, Safety & Specifications

4. Troubleshooting

14.RS-232 SERIAL INTERFACE COMMAND DEFINITION CONT’D

ADVANCED COMMAND SET FOR AUDIO MIXER OPERATIONS CONT’D

Audio Input Functions for the A/V Source Group Cont’d

3. SET ABSOLUTE VOLUME FOR SELECTED AUDIO INPUT COMMAND

<CMD>	Hex	<Param> Value	Definition
Symbol	Value
AIAV p	0x94	Command Packet:	Response Packet:
			The CAT 860 sends two

14.RS-232 SERIAL INTERFACE COMMAND DEFINITION CONT’D

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

<CMD>	Hex	<Param> Value	Definition
Symbol	Value
AIAV?	0x95	Command Packet:	Response Packet:

5. Warranty, Safety & Specifications

4. Troubleshooting

3. Optional Accessories

2. Setup & Use

1. Overview

The controller sends only	<Param> characters in the
one <Param> character in
	response packet. Possible
the command packet. The
	values are shown below:
possible values are shown
	<Param> #1:
below:
0xCF = 0 dB	0x80	= TV/VCR
	0x81	= CD/DVD
0xCE = -1dB	0x82	= COMPUTER
0xCD = -2dB	0x83	= AUX IN
	0x84	= IR Channel A
0xCC = -3dB
	0x85	= IR Channel B
0xA7 = -40dB**	0x86	= AUX OUT
0x83 = -76dB	<Param> #2:
	0xCF = 0 dB
0x82 = -77dB
	0xCE = -1dB
0x81 = -78B	0xCD = -2dB
	0xCC = -3dB
0x80 = -79dB
	0xA7 = -40dB
** Power up default	0x83	= -76dB
	0x82	= -77dB
	0x81	= -78B
	0x80	= -79dB

Definition: This command modifies the volume-level EEPROM variable which was selected by the AICH (<0x90>) command. The EEPROM variable is set the value indicated in the <param> character.

Afterwards, the value in the EEPROM variable is unconditionally loaded into the corresponding volume control hardware register regardless of any prior mute operation.

If the command is properly received, the CAT 860 responds by repeating back the command packet where the first of two replacement <Param> characters

The controller sends no <Param> character in the command 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

3. Optional Accessories

2. Setup & Use

1. Overview

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contains the selection status set by AICH (<0x90>) and the second contains the resultant value stored in the volume-level EEPROM variable which was modified by this command.

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

For the audio inputs, the power up default values for all six input volume-level EEPROM variables is set for -40dB.

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.

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