Multiple Video Head Connections - ADDER AdderView CATx AVX4016 User Manual

Multiple video head connections

Two.or.more.AdderView.CATx.units.can.be.
connected.together.so.that.they.operate.in.a.
synchronised.manner..Synchronised.operation.
is.useful.for.applications.that.require.multiple.
video.signals.to.be.switched.together..This.type.of.
operation.is.usually.required.where.each.computer.is.
fitted.with.multiple.video.cards.or.video.cards.with.
multiple.video.heads..Whenever.a.AdderView.CATx.
channel.is.switched,.it.sends.an.RS232.command.out.
on.its.serial.interface.(marked.
COM1/UPGRADE
An.AdderView.CATx.will.switch.its.channel.if.it.receives.the.
same.command.on.its.serial.interface..Consequently,.by.linking.
the.serial.interfaces,.a.master.unit.may.be.made.to.automatically.
switch.one.or.more.slave.units.as.shown.in.the.diagram.
It.should.be.noted.that.the.synchronisation.cable.deliberately.does.not.have.
the.transmit.pin.of.the.Slave.End.connector.linked.to.the.receive.pin.of.
the.Master.End.connector..To.do.so.would.cause.the.Slave.unit.to.be.able.
to.switch.the.Master.unit..This.would.setup.an.endless.cyclical.switching.
sequence.that.would.prevent.the.AdderView.CATx.devices.from.operating.
correctly..For.more.details.about.the.serial.synchronisation.cables,.see.
Appendix 7.....
Slave monitor
.on.the.rear.panel)..
Master monitor
Serial
synchronisation
cable
The local user ports can also
be used to view multiple
video head installations.
Notes
It is recommended that the
second CAM in each pair is a
USB-type and that it is plugged
to a vacant USB port on the host
computer to derive its power.
Pairs of CAMs can be strapped
back-to-back with cable ties to
create a tidy installation...
..
Computers fitted
with dual video
heads
Slave AdderView CATx
Master AdderView CATx