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1. Overview 2. Setup & Use
3. Optional
Accessories
4. Troubleshooting
5. Warranty, Safety
& Specifications
1. Overview 2. Setup & Use
3. Optional
Accessories
4. Troubleshooting
5. Warranty, Safety
& Specifications
f. Return Absolute Audio Output Channel Volume Setting
g. Return Mute/Un-mute Status for Audio Inputs
5. Action/Query Response Functions:
a. Not Acknowledge (NACK) is the response for any aborted commands.
b. Action Command response is to repeat back the command packet sent
by the serial controller. Some action command packets do not have a
<Param> character, but all response packets will have one or two <Param>
characters.
Example: CMD><Param><Param><EOT>
Example: <STX><CMD><Param><EOT>
c. The Query Command response is for the most part the query command
repeated back to the serial controller. However, the response packet also
includes one or two imbedded <Param> characters which contain the
values of the pertinent CAT 860 registers.
Example: CMD><Param><Param><EOT>
Example:
<STX><CMD><Param><EOT><STX><CMD><Param><Param><EOT>
Example: <STX><CMD><Param><EOT>
Summary of command and response transactions Cont’d:
13. RS-232 SERIAL INTERFACE
PROGRAMMING CONT’D
1. Action Command Functions for the Basic Command Set (Audio Switcher
Operations):
a. Enable One of Four Audio/Video Sources
b. Increment and Decrement All Audio/Video Sources by 2dB
c. Increment and Decrement Both Microphone Channels by 2dB
d. Mute and Un-mute All Audio/Video Sources
e. Mute and Un-mute Both Microphone Channels
2. Query Command Functions for the Basic Command Set (Audio Switcher
Operations):
a. Return Absolute Microphone Source Volume Setting
b. Return Audio/Video Source Selection Status (TV/VCR, CD/DVD, COMP, or
AUX)
c. Return Absolute Audio/Video Source Volume Setting
d. Return Mute/Un-mute Status for Microphone Source Inputs
e. Return Mute/Un-mute Status for Audio/Video Source Inputs
3. Action Command Functions for the Advanced Command Set (Audio Mixer
Operations):
a. Select Control of Microphone Input Channel (A or B)
b. Set Differential Microphone Input Channel Volume
c. Set Absolute Microphone Input Channel Volume
d. Select Control of Audio/Video Source (TV/VCR, CD/DVD, COMP, or AUX)
e. Set Differential Audio/Video Source Volume
f. Set Absolute Audio/Video Source Volume
g. Select Control of Audio Output Channel (AUX)
h. Set Absolute Audio Output Channel Volume
i. Set Mute/Un-mute of Any or All Audio Inputs
4. Query Command Functions for the Advanced Command Set (Audio Mixer
Operations):
a. Return Microphone Input Channel Selection Status (A or B)
b. Return Absolute Infrared Input Channel Volume Setting
c. Return Audio/Video Source Selection Status (TV/VCR, CD/DVD, COMP, or
AUX)
d. Return Absolute Audio/Video Source Volume Setting
e. Return Audio Output Channel Selection Status (AUX)
Summary of command and response transactions:
13. RS-232 SERIAL INTERFACE
PROGRAMMING CONT’D