Calrec ARGO, Инструкция по установке и техническому обслуживанию

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40 ARGO
Digital Broadcast IP Production Console
Connection Information
GPIO in Argo systems is an option.
GPIO connections provide logic inputs
and outputs that can be assigned
to various functions on the control
surface; allowing console functions
to trigger external devices such as
fader starts for playback devices and
for external devices to trigger console
functions, for example auto-fades
controlled by a video switcher.
If GPIO is required, please discuss this
with your sales person or Calrec project
engineer. Optional GPIO cards can be
fitted in modular AoIP I/O frames, or
any fixed format box with a height of 2U
or greater. Multiple boxes can be fitted
with GPIO cards to make up the required
quantity. The physical location of AoIP
I/O boxes within the installation should
be considered when choosing which to fit
with GPIO cards.
A fixed format I/O box fitted with a GPIO
card has two D25 connectors on the
rear, female for inputs, male for outputs.
GPIO cards for modular frames have a
single D50 connector on the front for
both inputs and outputs. Two versions of
modular card are available, one with 8
changeover relay outputs and one with 16
normally open relay closures.
The
JB6549 Combo I/O box
is an AoIP
module that can be fitted into the rear
of an Argo section. This has two D25
connectors on it for GPIO, one carries
8 GPI opto I/P circuits whilst the other
carries 8 GPO opto O/P circuits.
Both connectors are female on
the JB6549 as can be seen on
"Argo AoIP Device I/O, Rear fitted
interface" on page 37.
There are also 3 Type R I/O boxes that
have GPIO built in with 6 GPIs & 6
GPOs:-
• AD6501 Type R Combo I/O box
• AD6502 Type R Analogue I/O box
• JD6503 Type R AES I/O box.
GPIO CONNECTIONS
GP inputs
Each GPIO card type has opto-isolated
inputs allowing for remote triggering of
console functions. Applying DC or AC
voltage across the positive and negative
pins of an input will trigger it.
A common way to trigger a GP input is by
providing a dry closure from a relay with
no voltage on it. If using a dry closure,
it should not simply be wired across the
+/- terminals of the opto input - one half
of the closure should be connected to a
ground on the GPIO card, the other half of
the closure to an opto input, and the other
input should be linked in the connector
hood to a GPIO card +5V pin.
This prevents potential problems in
connecting power between different
manufacturers' hardware and is shown in
the example below.
GP INPUT WIRING EXAMPLE
0V
+IN
-IN
+5V
Trigger
GP Input
External
Closure
Calrec GPIO card
+5V
(Dry)
External wiring
GP outputs
The fixed format I/O box GPIO card,
and the WY5858 modular GPIO card
have 8 changeover relays each with
access to the normally open, normally
closed and either common relay pins or
normally open/closed negative pins to
provide flexibility in use. If required, these
contacts can be used to switch audio.
If being used to trigger external
equipment expecting a ground, the relay
common should be connected to a ground
from the external equipment and either
the normally open or normally closed
contact used as the trigger line.
If a dry closure is required by the external
equipment, this can be achieved by wiring
one leg to either the normally open or
normally closed contact and the other leg
to the common or normally open/closed
negative contact.
Normally open (NO) contacts short to
the common or negative pin when the
relay is activated by the selected function.
Normally closed (NC) contacts are
shorted to common or negative when the
function is NOT active.
CHANGEOVER OUTPUT EXAMPLE #1
changeover relay
(shown inactive)
Calrec Fixed Format
GPIO card
External wiring
Com
NO
NC
changeover relay
(shown inactive)
Calrec modular
GPIO WY5858
NO-
NO+
NC+
NC-
Connect NC-
and NO- to
make common
• Changeover relay shown wired to
provide a dry closure when activated.
For WY5859 treat NO- as common.