Selecting An Input; Auto-Input Switching - Extron electronics SW HD 4K PLUS Series User Manual

Selecting an Input

To switch (tie) an input to the output, you have the following options:
• Front panel buttons — Press the desired input button on the front panel (ensure
that auto-input switching is not enabled). The LED corresponding to the selected input
button lights.
The appropriate front panel input LED lights to indicate the selected input. The LED
•
remains lit until a new input is selected.
Only one input can be switched to the output at a time.
•
• Contact closure — Plug one of the provided 3-pole captive screw connectors into the
rear panel Contact port. Wire either of the following to the port:
Contact closure device: If a push-button contact closure device is attached to
•
the Contact port, press the button that is connected to the slot that corresponds to
the desired input.
Jumper wire: On the connector attached to a Contact In/Tally Out port,
•
momentarily short one of the Contact Closure pins (C) to the ground pin (G) using a
jumper wire. Input is switched immediately when the jumper contacts both pins.
NOTE: If an input pin is latched permanently to the ground pin, input
See Wiring the CONTACT/TALLY Connectors
Other ways to select an input include using SIS commands (see
page 19) and the PCS program (see the PCS help file).

Auto-input Switching

Enabling Auto-input switching
Auto-input switching allows the SW HD 4K PLUS to automatically select the active,
connected input based on detection of an active video signal (TMDS clock activity). If two or
more inputs are active, the highest-numbered input port with an active signal is selected (for
example, input 4 on an SW4 HD 4K PLUS switcher).
When auto-input switching is in effect, the green Auto Switch LED on the front panel lights
and the front panel input buttons are disabled.
By default, auto-input switching is disabled. To toggle auto-input switching on and off:
1. Press and hold input button
2. While holding button
switching by any other method is disabled while those pins are connected.
on the front panel.
1
, press and release input button
1
on page 9 for more information.
Input Selection
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SW HD 4K PLUS Series • Operation
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