Lightspeed CAT 860, User Manual

Page: 43 / 88

43
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
BASIC COMMAND SET FOR AUDIO SWITCHER OPERATIONS CONT’D
Audio Input Functions for the A/V Source Group Cont’d
9. TOGGLE MUTE FOR ENABLED AUDIO/VIDEO SOURCE COMMAND
<CMD>
Symbol
Hex
Value
<Param> Value Definition
TMAV 0xE9 Command Packet:
The controller sends no
<Param> character in the
command packet.
The Toggle Mute command
toggles between mute and
un-mute for the audio/video
source inputs.
When set to mute, the 860
Aux Audio Inputs are set to
-79dB.
When set to unmute, the
860 resets the previously
selected input to it’s
previous volume setting and
the remaining three Aux
Audio Inputs remain set at
-79dB.
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.