LightSpeed Technologies CAT 860 user manual 13.RS-232SERIAL INTERFACE PROGRAMMING CONT’D, Tmmi

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

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

10. TOGGLE MUTE FOR MICROPHONE AUDIO INPUTS COMMAND

<CMD>	Hex	<Param> Value	Definition
Symbol	Value
TMMI	0xEA	Command Packet:	This command toggles
		The controller sends no	between mute and un-mute
			for the microphone audio
		<Param> character in the
			inputs.
		command packet.
			When set to mute, the 860
			microphone Channel A & B
			volumes are set to -79dB.
			When set to unmute, the
			860 resets the microphone
			volumes to their previous
			volume setting.
			Response Packet:
			If the command is properly
			received, the CAT 860
			responds by repeating
			back the command packet
			with an added imbedded
			<Param> character
			containing the value 0x80
			if the resultant state is
			“un-muted” and 0x81 if the
			resultant state is “muted”.
			If the command is not
			received properly, the CAT
			860 responds by sending a
			<NACK> character.

13.RS-232 SERIAL INTERFACE PROGRAMMING CONT’D

BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS CONT’D

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

11. QUERY ENABLED AUDIO/VIDEO SOURCE COMMAND

<CMD>	Hex	<Param> Value	Definition
Symbol	Value
QEAV?	0xEB	Command Packet:	This command causes the
		The controller sends no	CAT 860 to return a query
			response packet where the
		<Param> character in the
			added <Param> character
		command packet.
			contains the “enable” status
			set by EAVS (<0xE0>).
			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 <Param> character
			containing the value
			indicating the “enable”
			status set by EAVS (<0xE0>).
			The possible values are
			shown below:
			0x80 = TV/VCR Enabled
			0x81 = CD/DVD Enabled
			0x82 = COMPUTER Enabled
			0x83 = AUX IN Enabled
			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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