Knox Video RS16x16HB - Manual (Page 6)

KNOX VIDEO
RS16x16HB ROUTING SWITCHER KNOX VIDEO
RS16x16HB ROUTING SWITCHER
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2.8 KEYPAD LOCKOUT
For security reasons it is sometimes desirable to lock out the front panel
keypad. To prevent the crosspoints from being changed by the front panel keypad,
put switch position 4 in the ON (up) position. Switches 6-8 should always be off.
The switches are read by the microprocessor only at power up. For switch
configurations to take effect, cycle the power input to the RS16x16HB.
2.9 BREAKAWAY AUDIO LOCKOUT
Sometimes it is desirable to disable breakwaway audio switching. Switch
position 5 on the rear panel is used to disable breakaway audio. Position 5 OFF
allows breakaway audio, while position 5 ON causes audio to always switch with
video.
2.10 REMOTE READOUT OPTION
The remote readout option employs an internal character generator to produce
a routing map status report in monochrome video format, genlocked to video input
number 1. Connect a monitor to the Remote Readout connection on the rear panel
to view this display.
2.11 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.
SECTION 3. OPERATION
3.1 INTRODUCTION
This section explains in detail the operation of the RS16x16HB using either the
front panel keypad or the RS232 port.
3.2 CONNECTIONS
Connect audio and video sources as described in sections 2.4 and 2.5. There is
no requirement that all inputs be used or terminated.
If outputs are left over they may be used like a distribution amplifier to buffer
and distribute an input signal. To use extra outputs in this way simply route the
input you wish to distribute to as many available outputs as desired.
Outputs may be looped back to unused inputs via short cables for the purpose
of adding delays, but be aware that if an output is then routed to that same input, an
illegal condition will exist and the output will oscillate at frequencies which could
spill over onto other crosspoints.
3.3 CONTROL VIA THE FRONT PANEL SWITCHES
Switch position 5 on the rear panel is used to disable breakaway audio. Position
5 OFF allows breakaway audio. Position 5 ON causes audio to always switch with
video. If position 5 is ON, disregard sections 3.3.1 and 3.3.2.
3.3.1 HOW TO ROUTE AUDIO AND VIDEO TOGETHER
On the front panel keypad, push the B (Both) key, then a two-digit number for
the destination (output) you wish to route to, then a two-digit number for the
source (input) you wish to route from, then push ENter.
If you do not complete your entry within fifteen seconds, the keypad will
return to idle mode, waiting for you to begin a new command sequence.