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KRAMER ELECTRONICS LTD.
the other end to the machine via a flat-cable. Alternatively, the connection may be made without the adaptor, as
follows:
Connect pin 5 of the PC to pin 5 of the machine.
Cross pins 2 and 3, i.e. connect pin 2 of the PC to pin 3 of the machine, and connect pin 3 of the PC
to pin 2 of the machine.
On the PC side, short pins 4 and 6.
On the PC side, short pins 1, 7 and 8.
This protocol complements Kramer’s “Protocol 2000” (Kramer’s switcher protocol). That is, the two protocols
can co-exist without disturbing one another. (According to Protocol 2000 definitions, the SG-6005 would be
machine number 16 (for A0=0) or 17 (for A0=1), therefore care should be taken not to set a switcher with this
machine number).
STRUCTURE OF PROTOCOL
MSB
LSB
INSTRUCTION
0
TO PC
I5
I4
I3
I2
I1
I0
7
6
5
4
3
2
1
0
1
st
byte
DATA
1
D6
D5
D4
D3
D2
D1
D0
7
6
5
4
3
2
1
0
2
nd
byte
EXTENDED DATA
1
E6
E5
E4
E3
E2
E1
E0
7
6
5
4
3
2
1
0
3
rd
byte
MSB’s
ADDR
1
E7
D7
1
0
0
0
A0
7
6
5
4
3
2
1
0
4
th
byte
Note that the MSB’s of the DATA (D7) and the EXTENDED DATA (E7) are in the fourth byte.
Terminology:
TO PC is the “DESTINATION BIT”
I4..I0 is the “INSTRUCTION”
D7..D0 is the “DATA”
E7..E0 is the “EXTENDED DATA”
A0 is the “LSB of the MACHINE ADDRESS”
The destination bit, TO PC, is 0 when sending from the PC to the machine, or 1 when sending from the machine to the
PC.
The address bit, A0, is determined by the setting of DIP-switch 4 on the SG-6005. If the switch is in the ON position,
ADDR should be set as 1; if it is in the OFF position, ADDR should be set as 0.
