KRAMER Electronics, Ltd.
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Set your VS 5x4 switcher to Protocol 2000 by setting DIP 5 OFF.
Set your VS 5x4 switcher to the old protocol by setting DIP 5 ON.
Get full details of Protocol 2000 via the Technical Support section of our Web site
(
http://www.kramerelectronics.com
).
Communication with the VIS-5X4 is defined using 2 bytes of information. Data transfer is at 9600
baud, with no parity, 8 data bits and one stop bit.
MSB
1st byte
LSB
MSB
2nd byte
LSB
N7 N6 N5 N4 N3 N2 N1 N0 N15 N14 N13 N12 N11 N10 N9 N8
Where:
N7 = 0 (continue bit).
N6N5N4N3 = 1000 (transmitted by the machine (to the PC), but not necessary when transmitting to
the machine).
N2N1N0 is the binary value of the machine being addressed (or of the machine sending its data)
minus one, e.g.. N2N1N0=000 to address machine #1 (the master);
N2N1N0=101 to address machine #6.
N15 = 1 (continue bit).
N14 = 0 for all communication from the PC.
N13N12 N11N10N9N8 = 10 0001 instructs a machine to send its present status. The machine returns
16 bytes. 4 pairs of bytes are sent for the status of the 4 outputs as defined by the table below, and 4
pairs for the gain settings of the 4 audio outputs as defined below.
N13N12 N11N10N9N8 = 10 0010 success code (the machine acknowledges the requested change in
status).
N13N12 N11N10N9N8 = 10 0011 non-success code (the machine cannot perform the requested
instruction).
NB:- Success/non-success codes, (according to the validity of the request), are returned from the
machine which was instructed to change its status.
N13N12 N11N10N9N8 = 10 01GG set audio gain of output 1
N13N12 N11N10N9N8 = 10 10GG set audio gain of output 2
N13N12 N11N10N9N8 = 10 11GG set audio gain of output 3
N13N12 N11N10N9N8 = 11 00GG set audio gain of output 4 where GG is defined as follows:
00 = 0dB gain
01 = 2dB gain
10 = 4dB gain
11 = 6dB gain
The above gain setting codes are bi-directional, i.e., if the change was made on the machine, then the
code is sent to the PC; and if the PC sends the code, then the change is made on the machine.
When N13 is low then N12N11N10N9N8 corresponds to the status (or the required change in status)
of the machine, as described in the table below. These are bi-directional codes.
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
ALL
FROM INPUT 1
1
2
3
4
21
FROM INPUT 2
5
6
7
8
22
FROM INPUT 3
9
10
11
12
23
FROM INPUT 4
13
14
15
16
24
FROM INPUT 5
17
18
19
20
25
OFF
26
27
28
29
30
