Knox Video RS8x8HB User Manual

Page 5

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KNOX VIDEO
RS8x8HB ROUTING SWITCHER

KNOX VIDEO

RS8x8HB ROUTING SWITCHER

Page 5

Page 6

BAUD RATE

SWITCH 1 SWITCH 2

19200

ON

ON

1200

OFF

ON

2400

ON

OFF

9600

OFF

OFF

Switches are ON when pushed to the right (as viewed from the back of the

panel). All Baud Rates are 8 Bit, No Parity, One Stop Bit.

The switches are read by the microprocessor only at power-up; for switch

configuration changes to take effect, cycle the power input to the RS8x8HB.

In the non-verbose mode, only the word DONE will be reported. In either

mode, an incorrect or meaningless command will cause the word ERROR to be
reported.

2.7 ANSWERBACK MODES

The user may choose between two modes of answerback: verbose and non-

verbose. Select the mode using position 3 of the programming switch located on
the rear panel of the RS8X8HB.

Position 3 ON is verbose, while position 3 OFF is non-verbose.
The switches are read by the microprocessor only at power-up; for switch

configuration changes to take effect, cycle the power input to the RS8x8HB.

In the verbose mode, each time a routing command is sent, the current routing

map will be reported on the RS232 line.

OUTPUT 1

Video 3

Audio 1

OUTPUT 2

Video 2

Audio 2

OUTPUT 3

Video 1

Audio 3

OUTPUT 4

Video 6

Audio 6

OUTPUT 5

Video 7

Audio 7

OUTPUT 6

Video 8

Audio 8

OUTPUT 7

Video 5

Audio 1

OUTPUT 8

Video 4

Audio 1

1

ON

2

3

4

5

6

7

8

Figure 2.1 Baud Rate Setting

Switches 6-8 should always be off.

Figure 2.2
Typical
Routing
Map Status
Report

2.8 DISABLING THE TIMED SEQUENCE MODE

To avoid accidentally enabling the timed sequence mode, turn switch 4 ON.

This will disable the timed mode.

2.9 DISABLING BREAKAWAY AUDIO

To disable breakaway audio feature, turn switch 5 ON.

2.10 VERTICAL INTERVAL SWITCHING

All units are now fitted with the vertical switching option. Switching will occur

during the vertical interval, referencing the sync signal on input number one. If
input number one has no input, switching will be random with respect to sync.
Note: vertical interval switching has no meaning unless the inputs are synchronous
to one another.

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