KRAMER: SIMPLE CREATIVE TECHNOLOGY
Kramer Protocol 2000
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1
st
BYTE:
Bit 7 – Defined as 0.
D – “DESTINATION”:
0 - for sending information to the switchers (from the PC);
1 - for sending to the PC (from the switcher).
N5…N0 – “INSTRUCTION”
The function to be performed by the switcher(s) is defined by the INSTRUCTION (6 bits). Also, if a function is performed
via the machine’s keyboard, then these bits are set with the INSTRUCTION NO. that was performed. The instruction codes
are defined according to the table below (INSTRUCTION NO. is the value to be set for N5…N0).
2
nd
BYTE:
Bit 7 – Defined as 1.
I6…I0 – “INPUT”.
When switching (i.e. instruction codes 1 and 2), the INPUT (7 bits) is set as the input number which is to be switched.
Similarly, if switching is done via the machine’s front-panel, then these bits are set with the INPUT NUMBER which was
switched. For other operations, these bits are defined according to the table.
3
rd
BYTE:
Bit 7 – Defined as 1.
O6…O0 – “OUTPUT”.
When switching (ie. instruction codes 1 and 2), the OUTPUT (7 bits) is set as the output number which is to be switched.
Similarly, if switching is done via the machine’s front-panel, then these bits are set with the OUTPUT NUMBER which was
switched. For other operations, these bits are defined according to the table.
4
th
BYTE:
Bit 7 – Defined as 1.
Bit 5 – Don’t care.
OVR – Machine number override.
M4…M0 – MACHINE NUMBER.
Used to address machines in a system via their machine numbers.
For a single machine controlled via the serial port, always set M4…M0 = 1, and make sure that the machine itself is
configured as MACHINE NUMBER = 1.
When several machines are controlled from a single serial
port, they are usually configured together with each machine having an individual machine number. If the OVR bit is set, then
all machine numbers will accept (implement) the command, and the addressed machine will reply.
Table 8: Instruction Codes for Protocol 2000
Note: All values in the table are decimal, unless otherwise stated.
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
NOTE
#
DESCRIPTION
INPUT
OUTPUT
0
RESET VIDEO
0
0
1
1
SWITCH VIDEO
Set equal to video input
which is to be switched
(0 = disconnect)
Set equal to video output which is
to be switched
(0 = to all the outputs)
2, 15
2
SWITCH AUDIO
Set equal to audio input
which is to be switched
(0 = disconnect)
Set equal to audio output which
is to be switched
(0 = to all the outputs)
2
5
REQUEST STATUS OF A
VIDEO OUTPUT
Set as SETUP #
Equal to output number whose
status is reqd
4, 3
6
REQUEST STATUS OF AN
AUDIO OUTPUT
Set as SETUP #
Equal to output number whose
status is reqd
4, 3
18
RESET AUDIO
0
0
1
61
IDENTIFY MACHINE
1 - video machine name
2 - audio machine name
3 - video software version
4 - audio software version
5 - RS422 controller name
6 - RS422 controller
version
7 - remote control name
8 - remote software
version
9 - Protocol 2000 revision
0 - Request first 4 digits
1 - Request first suffix
2 - Request second suffix
3 - Request third suffix
10 - Request first prefix
11 - Request second prefix
12 - Request third prefix
13
62
DEFINE MACHINE
1 - number of inputs
2 - number of outputs
3 - number of setups
1 - for video
2 - for audio
3 - for SDI
4 - for remote panel
5 - for RS-422 controller
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