Extron electronics IN1804 Series User Manual page 23

Analog audio output connector — Connect a balanced or unbalanced audio
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output device to this 5-pole captive screw Audio Out connector (see
Connections on page 16).
ATTENTION:
• For unbalanced audio, connect the sleeves to the ground contact. Do not
connect them to negative (–) contacts (see the Extron Audio Wiring Card).
• Pour l'audio asymétrique, connectez les manchons au contact au sol. Ne
PAS connecter les manchons aux contacts négatifs (–) (voir le Audio Wiring
Card d'Extron).
• The length of the exposed wires in the stripping process is critical. The ideal
length is 3/16 inch (5 mm). If the exposed portion is longer, the wires may
touch, causing a short circuit between them. If the exposed wires are shorter,
they can be easily pulled out, even if tightly fastened by the captive screws.
• La longueur des câbles exposés est primordiale lorsque l'on entreprend
de les dénuder. S'ils sont un peu plus longs, les câbles exposés pourraient
se toucher et provoquer un court circuit. S'ils sont un peu plus courts, ils
pourraient sortir, même s'ils sont attachés par les vis captives.
• Do not tin the wires. Tinned wire does not hold its shape and can become
loose over time.
• Ne pas étamer les câbles. Les câbles étamés ne sont pas aussi bien fixés
dans les terminaisons des connecteurs à vis captives et pourraient sortir.
Analog audio input connector — Connect a balanced or unbalanced audio source to
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this 5-pole captive screw Audio In connector to embed analog audio in the HDMI output
signal. Input gain range is -18 dB to +24 dB. The default is 0 dB (see
Connections).
+V connector — The +V pin constantly outputs +5 VDC power with 200 mA total
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(shared between pins). Use this pin when power is needed for external Tally LEDs, such
as those on the Extron CCB 30 contact closure remote.
Ground pin for Contact/Tally ports (see "
P
Contact/Tally ports — (Optional) Wire contact closure and tally devices or Show Me
Q
cables to these seven 2-pole captive screw connectors as desired. Each port contains
two pins, labeled C and T.
Ports 1 through 4 (for input switching) — Each Contact/Tally connector is labeled
•
with the number of the video input associated with it. Wire a push-button switch
or other contact closure device to pin C (contact) and pin G (ground) of the 2-pole
connector ( ). These ports can also be used for AV mute and sync mute.
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Alternatively, wire an SM cable to the C and T pins (see
Cable on page 20 for connection instructions).
Ports 5 through 7 (configurable via PCS) — Wire a switch to contact port pin C
•
pin to initiate a command on the IN1804 (for example, video or audio mute), or to
issue a CEC command to connected display devices.
Wiring the Contact/Tally Connectors
See
Contact/Tally ports," below)
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Connecting using an SM
on page 19 for more information.
IN1804 Seamless Scaling Switchers • Installation
Analog Audio
Analog Audio
15