VS-808TP - Kramer Protocol
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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 2: Instruction Codes for Protocol 2000
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
NOTE
#
DESCRIPTION
INPUT
OUTPUT
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)
1
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)
1
3
STORE VIDEO STATUS
Set as SETUP #
0 - to store
1 - to delete
1, 2
4
RECALL VIDEO STATUS
Set as SETUP #
0
1, 2
Note: All values in the table are decimal, unless otherwise stated.
Notes on the above table:
NOTE 1 - For example, if the HEX code
01
85
88
83
was sent from the PC, then the switcher (machine 3) will switch input 5 to output 8.
When the PC sends one of the commands in this group to the switcher, then, if the instruction is valid, the switcher replies
by sending to the PC the same four bytes that it was sent (except for the first byte, where the DESTINATION bit is set
high).
NOTE 2 - SETUP # 0 is the present setting. SETUP # 1 and higher are the settings saved in the switcher's memory, (i.e.
those used for Store and Recall).
Summary of Contents for VS-808TP
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