LightSpeed Technologies CAT 860 user manual 14.RS-232SERIAL INTERFACE COMMAND DEFINITION

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4. Troubleshooting
3. Optional	Accessories
2. Setup & Use
1. Overview

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

<CMD>	Hex	<Param> Value	Definition
Symbol	Value
AVS p	0xE0	Command Packet:	Select (enable) one of four
		The controller sends only	Audio/Video input sources
			to receive audio. The
		one <Param> character in
			remaining three unselected
		the command packet. The
			Audio/Video input ports
		possible values are shown
			will be muted by sending
		below:
			the -79dB setting their
		0x80 = Enable TV/VCR	corresponding volume
		0x81 = Enable CD/DVD	control hardware registers.
			Note that muting inputs
		0x82 = Enable COMPUTER	does not change the values
			in any of the volume-level
		0x83 = Enable AUX IN
			EEPROM variables.
		0x84 = Enable All Inputs **	Response Packet:
			If the command is properly
		** Power up default used	received, the CAT 860
			responds by repeating back
		to facilitate initial system
			the command packet to the
		installation.
			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 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>	Hex	<Param> Value	Definition
Symbol	Value
IAVS	0xE1	Command Packet:	Increment the volume of
		The controller sends no	the selected audio input
			by 2 dB. This overrides any
		<Param> character in the
			previous mute commands.
		command packet.
			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.

5. Warranty, Safety	& Specifications
4. Troubleshooting
3. Optional	Accessories
2. Setup & Use
1. Overview

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