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

1.DIFFERENTIALLY INCREASE VOLUME FOR SELECTED AUDIO INPUT COMMAND

<CMD>

Hex

<Param> Value

Definition

Symbol

Value

 

 

 

 

 

 

AIDI p

0x92

Command Packet:

Response Packet:

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

2.DIFFERENTIALLY DECREASE VOLUME FOR SELECTED AUDIO INPUT COMMAND

<CMD>

Hex

<Param> Value

Definition

Symbol

Value

 

 

 

 

 

 

AIDD p

0x93

Command Packet:

Response Packet:

5. Warranty, Safety & Specifications

 

 

4. Troubleshooting

3. Optional Accessories

 

 

2. Setup & Use

 

 

1. Overview

 

The controller sends only

The CAT 860 sends two

<Param> characters in the

one <Param> character in

response packet. Possible

the command packet. The

values are shown below:

possible values are shown

<Param> #1:

below:

0x81

= one 1dB step

0x80

= TV/VCR

0x81

= CD/DVD

 

 

0x82

= two 1dB steps

0x82

= COMPUTER

0x83

= three 1dB steps

0x83

= AUX IN

0x84

= IR Channel A

0x84

= four 1dB steps

0x85

= IR Channel B

 

 

0x85

= five 1dB steps

0x86

= AUX OUT

0x86

= six 1dB step

<Param> #2:

0xCF = 0 dB

0x87

= seven 1dB steps

0xCE = -1dB

0x88

= eight 1dB steps

0xCD = -2dB

0xCC = -3dB

0x89

= nine 1dB steps

0xA7 = -40dB

 

 

0x8A = ten 1dB steps

0x83

= -76dB

 

 

0x82

= -77dB

 

 

0x81

= -78B

 

 

0x80

= -79dB

 

 

 

 

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:

0x80 = TV/VCR

0x81 = CD/DVD

0x82 = COMPUTER

0x83 = AUX IN

0x84 = IR Channel A

0x85 = IR Channel B

0x86 = AUX OUT

<Param> #2:

0xCF = 0 dB 0xCE = -1dB 0xCD = -2dB 0xCC = -3dB 0xA7 = -40dB 0x83 = -76dB 0x82 = -77dB 0x81 = -78B 0x80 = -79dB

3. Optional Accessories

 

 

2. Setup & Use

 

 

1. Overview

 

52

Definition: This command modifies the volume-level EEPROM variable which was selected by the AICH (<0x90>) 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 AICH (<0x90>) 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 inputs, the power up default values for all six input volume-level EEPROM variables is set for -40dB.

Definition: This command modifies the volume-level EEPROM variable which was selected by the AICH (<0x90>) command. The EEPROM variable is decremented 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 AICH (<0x90>) 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 inputs, the power up default values for all six input volume-level EEPROM variables is set for -40dB.

53

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LightSpeed Technologies CAT 860 user manual Param #1, Param #2
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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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