Cable Electronics CE Labs SW808HD Manuel d'instruction - Page 5

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PROTOCOL DESCRIPTION

Command Packet

Command packets are sent to the Matrix Switch from a computer and

are 4 or more bytes long depending upon the instruction code.

Command Type A

Address

Instruction Code

or Command Type B

Address

Instruction

Length

Output

Code

Byte

Byte 1

Response Packet

Response or Acknowledgement (ACK) packets are returned from the

Matrix Switch after receipt of a command packet. The response packets

are 2 or more bytes long depending upon the command requirements.

ACK Type A

ACK Byte

CRC

or ACK Type B

ACK

Length Byte

Output

Byte

Byte 1

or ACK Type C

Supported

ACK

Length

Information

Output

Byte

Ports

Command Packet Byte Descriptions

Command Type A

Address

Instruction Code

Output Byte

Command Type B

Address

Instruction

Length

Code

Byte

Output Byte

Input Byte

Input

Output

Input

= = =

Byte 1

Byte n

Input

Output

Input

= = =

Byte n

Supported

Machine

Input

= =

Name 1

Name n

Ports

Input Byte

CRC

Output

Input

Output

Input

Byte 1

Byte n

MATRIX SYSTEM FRONT/REAR PANELS

Model SW404HD Front/Rear Panels

CRC

SW404HD Front Panel

CRC

SW404HD Rear Panel

Model SW808HD Front/Rear Panels

CRC

SW808HD Front Panel