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KRAMER ELECTRONICS, LTD.
18
3
rd
byte
OUTPUT
1 0 0 0 O3
7 6 5 4 3
4
th
byte
MACHINE NUMBER
1 0 0 0 0 M2
M1
7 6 5 4 3 2 1
1
st
BYTE: Bit 7 – Defined as "0",
D – “DESTINATION BIT”
This bit is always "low", when sending from the PC to the Matrix Switchers, and "high" for information sent to
the PC.
N5…N0 – “INSTRUCTION”.
The function that is to be performed by the Matrix Switcher (s) is defined by these 6 bits. Similarly, if a function
is performed via the machine’s keyboard, then these bits are set with the
INSTRUCTION #
which was
performed. The instruction codes are defined according to the table below (
INSTRUCTION #
is the value to be
set for N5…N0).
2
nd
BYTE:
Bit 7 – Defined as "1".
Bits 4 – 6 - Defined as "0".
I3… I0 – “INPUT”.
When switching via RS-232 for RS- 485 (for instruction codes 1 and 2), these bits set the input that is to be
switched. Similarly, if switching is done via the machine’s keyboard, then these bits are set with the input
number which was switched. For disconnect, set as 0. For other operations, these bits are defined according to
the table.
3
rd
BYTE:
Bit 7 - Defined as "1".
Bits 4-6 Defined as "0".
O3 – O0 – “OUTPUT”.
When switching via RS-232 or RS-485 (for instruction codes 1 and 2), the output to switch is set by these bits.
Similarly, if switching is done via the machine’s keyboard, then these bits are set with the output number that
was switched. For other operations, these bits are defined according to the table.
4th BYTE:
Bit 7 – Defined as "1".
Bits 3-6 Defined as "0".
M2… M0 – “Machine Number”.
Machine Number = (DIP – Switch Code) + 1.
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
NOTE
# DESCRIPTION
INPUT
OUTPUT
0 RESET
MACHINE
0
0
1
1
SWITCH VIDEO
Set equal to video input to be
switched
Set equal to video output to
be switched (0=to all the
outputs)
2
2
SWITCH AUDIO
Set equal to audio input to be
switched
Set equal to audio output to
be switched (0=to all the
outputs)
2
3
STORE STATUS
Set as SETUP #(1-8)
- To store parameters
- to delete setup
2,7