Kramer Electronics TV Cables Kramer Electronics TV Cables User Manual

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KRAMER: SIMPLE CREATIVE TECHNOLOGY
Kramer Protocol
48
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. 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.
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.
Table 18: 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
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
3
STORE VIDEO STATUS
Set as SETUP #
0 - to store
1 - to delete
2, 3
4
RECALL VIDEO STATUS
Set as SETUP #
0
2, 3
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
8 BREAKAWAY SETTING 0
0 - audio-follow-video
1 - audio breakaway
2
11
REQUEST BREAKAWAY
SETTING
Set as SETUP #
0 - Request audio breakaway
setting
3, 4, 6
15
REQUEST WHETHER SETUP
IS DEFINED / VALID INPUT IS
DETECTED
SETUP #
or
Input #
0 - for checking if setup is defined
1 - for checking if input is valid
8
16
ERROR / BUSY
For invalid / valid input
(i.e. OUTPUT byte = 4
or OUTPUT byte = 5),
this byte is set as the
input #
0 - error
1 - invalid instruction
2 - out of range
3 - machine busy
4 - invalid input
5 - valid input
6 - RX buffer overflow
9, 25
22
SET AUDIO PARAMETER
Equal to input / output
number whose parameter
is to be set
(0 = all)
Set as parameter value
2, 24
24 INCREASE / DECREASE AUDIO
PARAMETER
Equal to input / output
number whose parameter
is to be increased /
decreased
(0 = all)
0 - increase output
1 - decrease output
2 - increase left output
3 - decrease left output
4 - increase right output
5 - decrease right output
6 - increase input
7 - decrease input
8 - increase left input
9 - decrease left input
10 -increase right input
11 - decrease right input
2
25 REQUEST AUDIO PARAMETER Equal to input / output
number whose parameter
is requested
0 6, 24
30
LOCK FRONT PANEL
0 - Panel unlocked
1 - Panel locked
0
2

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