Matrix System
The Matrix Switch is a high performance system used to switch
audio/video frequencies. It will cross switch multiple input/output
audio/video signals through independent Y/Pb/Pr component and
audio input/output terminals. Each Y/Pb/Pr component signal and
audio signal is transmitted separately and switched separately,
thereby minimizing signal attenuation and ensuring high definition
graphics and high fidelity audio signal output.
The primary use is; TV broadcasting projects, multi-media conference
halls, large display projects, TV teaching, and command control
centers. It features power interruption protection during power surge,
LCD display, and synchronous and separate audio/video switching
functions. The RS-232 and RS-485 communication ports enable
convenient communication with remote control equipment. This
manual describes the SW404HD and SW808HD models.
Matrix System Models
Matrix System Packing
When unpacking, ensure the following items are found:
• One SW XXX HD Matrix
• One RS-232 cable
• One power cable
• One testing and application CD
• One user manual
• Two green terminals
Matrix Host Installation
The SW XXX HD Matrix should be placed on a sturdy desk or installed
on a 19-in rack
MATRIX SYSTEM OVERVIEW
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Model
Video
Input Port
Video
Output Port
Audio
Input Port
Audio
Output Port
RS-485
Connector
RS-232
Connector
SW404HD
4
4
4
4
SW808HD
8
8
8
8
Address Byte (Command Type A and B)
7
6
5
4
3
2
1
0
BT
X
CRC
M4
M3
M3
M1
M0
Broadcast Reserved
CRC
Machine ID (5-bit address)
BT: Broadcast
0: Instruction for one machine with matching Machine ID
1: Instruction for all machines
If BT = 1, machine will not return a response packet.
If BT = 0, machine must respond
CRC: CRC-8
0: Host (computer) does not append a CRC byte at end of
command packet
1: Host appends a CRC byte to end of command packet
Instruction Code Byte (Command Type A and B)
7
6
5
4
3
2
1
0
VAR
X
I5
I4
I3
I2
I1
I0
Variable
Length
Reserved Instruction Code (6-bit command)
VAR: Variable Length 0: The command packet is 4 bytes with
Output
and
Input bytes
1: The command packet is variable length and
contains a length byte indicating the number of
Output
and Input bytes
Length Byte (Command Type B only)
L7
L6
L5
L4
L3
L2
L1
L0
Number of Output and Input Bytes to follow not including CRC
Output
Byte (Command Type A and B)
O7
O6
O5
O4
O3
O2
O1
O0
Refer to Command Table
Input Byte (Command Type A and B)
I7
I6
I5
I4
I3
I2
I1
I0
Refer to Command Table
CRC (Command Type A and B)
C7
C6
C5
C4
C3
C2
C1
C0
CRC-8 calculated from all bytes in packet.
Appended if CRC bit set in Instruction code