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

5. SELECT AUDIO OUTPUT COMMAND

<CMD>

Hex

<Param> Value

Definition

Symbol

Value

 

 

 

 

 

 

AOCH p

0xA0

Command Packet:

This command determines

 

 

The controller sends only

which volume-level

 

 

 

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

6.DIFFERENTIALLY INCREASE VOLUME FOR SELECTED AUDIO OUTPUT COMMAND

<CMD>

Hex

<Param> Value

Definition

Symbol

Value

 

 

 

 

 

 

AODI p

0xA2

Command Packet:

Response Packet:

5. Warranty, Safety & Specifications

 

 

4. Troubleshooting

 

3. Optional Accessories

 

 

2. Setup & Use

 

 

Overview

one <Param> character in

EEPROM variable will

be affected by the AODI

the command packet. The

(<0xA2>), AODD (<0xA3>),

possible values are shown

and AOAV (<0xA4>)

below:

commands.

0x80 = Reserved

If the command is properly

0x81 = AUX OUT**

received, the CAT 860

responds by repeating back

 

** Power up default

the command packet where

the <Param> character

Response Packet:

contains the selection

The CAT 860 sends only

status.

 

one <Param> character in

If the command is not

the response packet. The

received properly, the CAT

possible values are shown

860 responds by sending a

below:

<NACK> character.

0x81 = AUX OUTt

Power up default is AUX

 

selected.

QUERY SELECTED AUDIO OUTPUT COMMAND

The controller sends only one <Param> character in the command packet. The possible values are shown below:

0x81 = one 1dB step

0x82 = two 1dB steps

0x83 = three 1dB steps

0x84 = four 1dB steps

0x85 = five 1dB steps

0x86 = six 1dB step

0x87 = seven 1dB steps

0x88 = eight 1dB steps

0x89 = nine 1dB steps

0x8A = ten 1dB steps

The CAT 860 sends two <Param> characters in the response packet. The possible values are shown below:

<Param> #1:

0x81 = AUX OUT

<Param> #2:

0xCF = 0 dB

0xCE = -1dB

0xCD = -2dB

0xCC = -3dB

0xA7 = -40dB

0x83 = -76dB

0x82 = -77dB

3. Optional Accessories

 

 

2. Setup & Use

 

 

Overview

1.

56

AOCH? 0xA1 Command Packet:

The controller sends no <Param> character in the command packet.

Response Packet:

The CAT 860 sends only one <Param> character in the response packet. The possible values are shown below:

0x81 = AUX OUT

This command causes the CAT 860 to return a query response packet where the <Param> contains the selection status set by AOCH (<0xA0>).

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

0x81 = -78B

0x80 = -79dB

Definition: This command modifies the volume-level EEPROM variable which was selected by the AOCH (<0xA0>) command. The EEPROM variable is incremented by the amount indicated in the <param> character.

Afterwards, the value in the EEPROM variable is unconditionally loaded into the corresponding volume control hardware register. This overrides 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 contains the selection status set by AOCH (<0xA0>) 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 outputs, the power up default values for all volume-level EEPROM variables is set for 0dB.

1.

57

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LightSpeed Technologies CAT 860 user manual Select Audio Output Command, Query Selected Audio Output Command
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CAT 860 specifications

LightSpeed Technologies has made significant strides in the field of educational technology with its innovative product, the CAT 860. This advanced audio distribution system is designed to enhance learning environments by ensuring that every student can hear their teacher clearly, regardless of classroom size or layout. The CAT 860 is particularly valuable in diverse educational settings, from traditional classrooms to modern digital learning environments.

One of the standout features of the CAT 860 is its powerful amplification capabilities. The system is equipped with a robust amplifier that delivers crystal-clear sound, offering a more engaging experience for students. This clarity not only enhances comprehension but also reduces fatigue during prolonged listening sessions. The CAT 860 uses digital signal processing to eliminate background noise and offers a full-range audio experience without distortion, which is critical in maintaining student attention.

Another key characteristic of the CAT 860 is its flexibility in terms of connectivity. It supports various input sources, including microphones, audio devices, and streaming services. This versatility makes it easier for teachers to incorporate multimedia resources into their lessons, fostering a more dynamic and interactive learning process. Moreover, the system can connect wirelessly to other devices, allowing for seamless integration into existing educational technology infrastructure.

Additionally, the CAT 860 is user-friendly, featuring a simple interface that allows teachers to quickly adjust volume levels and select audio sources without needing extensive technical training. This ease of use encourages teachers to utilize the system more frequently, which in turn maximizes the benefits of enhanced audio in the classroom.

In terms of design, the CAT 860 is compact and aesthetically pleasing, making it a suitable addition to any classroom environment. Its modern design ensures that it blends seamlessly with other teaching aids and equipment, maintaining an organized and professional appearance.

Overall, the LightSpeed Technologies CAT 860 is a powerful and flexible audio distribution system that caters to the unique needs of modern classrooms. By improving sound quality and ease of use, it enhances the overall educational experience for both students and teachers alike, making it an essential tool in today's learning environments.
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