Knox Video RS4x4HB - Manual (Page 7)

KNOX VIDEO
RS4x4HB ROUTING SWITCHER KNOX VIDEO
RS4x4HB ROUTING SWITCHER
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3.3.3 HOW TO STORE AND RECALL CROSSPOINT PATTERNS
The RS4x4HB has 4 stored routing map configuration memory locations.
These stored configurations are non-volatile and are thus maintained during power
interruptions.
To STORE the currently loaded crosspoint pattern to one of the four pattern
storage areas, push and hold input button #4; an S will appear on the LED display.
Then release button #4 and push an output button, 1 to 4, corresponding to the
storage area you wish to store the crosspoint pattern in.
To RECALL and load one of the four stored crosspoint patterns from the
front panel, push and hold input button #1; an R will appear on the LED display.
Then release button #1 and push an output button, 1 to 4, corresponding to the
crosspoint pattern you wish to recall.
3.3.4 HOW TO START THE TIMED SEQUENCER
The RS4x4HB can be set to cycle continuously through its four stored patterns
on a timed basis. To start the cycling, push and hold input button #3. Push and
hold input button #3 again to stop the cycling. Putting dipswitch 4 in the ON
position can disable the Timed Sequencer.
3.4 ROUTING VIA THE RS232 INPUT
A simple protocol allows all crosspoints to be set through the RS232 port.
The RS232 port will accept inputs from a terminal, computer, or other software-
driven control device. No handshaking is required. The RS4x4HB RS232 port is
configured as a DCE. The pinout of this port allows connection to a PC-compatible
9-pin serial COM port with a 1:1 data cable. (Data is sent from the router on pin 2,
received on pin 3. Pin 5 is common.)
Note: in the following commands the letters may be upper or lower case;
(ENTER) is the same as Carriage Return (in hex, a 0D). Do not add a Line Feed (in
hex, 0A).
3.4.1 ROUTING AUDIO AND VIDEO
To route video and audio send a four-byte command in the form:
Bxy(ENTER)
where x is an output number (1-4) and y is an input number (1-4).
To route video alone send a four-byte command in the form:
Vxy(ENTER)
where x is an output number and y is an input number.
To route audio alone send a four-byte command in the form:
Axy(ENTER)
where x is an output number and y is an input number.
To route both video and audio from different inputs, send a six-byte
command in the form:
Bxyz(ENTER)
where x is an output number and y is a video input number and z is an audio
input number.
For example, B123 sends video from input 2 to output 1 and audio from input
3 to output 1.
A crosspoint can be turned OFF by routing it to input zero; e.g. B10 turns
off the video and audio to output 1.
.
3.4.2 SENDING A SALVO COMMAND DESCRIPTION
It is possible to send the same input to a number of sequential outputs by a
single eight-byte command of the form:
Xmno(ENTER)
where m is the first output number, n is the last output number, and o is the
input number.
Using X as the first byte sends both video and audio to the range of outputs,
using Y sends video only, and using Z sends audio only. For example, Y144 sends
the audio from input 8 to outputs 1 through 4.