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b.
The Auto-Switch LED blinks for approximately 45 seconds. During this time, the
switcher reads the available EDID information from the connected output device
and writes it to memory on each input. When power is removed, these settings
remain in memory and are in effect when power is reapplied.
c.
At the end of the boot process, the Auto-Switch LED turns off, and the LED for the
most recently selected input lights.
4.
Power on the input devices.
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 4- or 5-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 connected to the slot corresponding 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 switching
See
Wiring the Contact/Tally Connectors
Other ways to select an input include using SIS commands (see
page 31) and the PCS program (see the DTP2 T 204 PCS Help File).
Front Panel Lockout (Executive Mode)
Front panel lockout mode disables all front panel controls, locking out users from those
functions. RS-232, USB, and LAN controls are still available while in executive mode.
Putting the transmitter in lock mode enhances security by protecting against inappropriate
or accidental changes to settings. If a front panel button is pressed during lock mode, all
front panel LEDs blink once.
NOTE: Front panel lockout can only be enabled or disabled via SIS commands (see
Front Panel Lockout (Executive Mode)
Auto-input Switching
Auto-input switching allows the DTP2 T 204 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 a DTP2 T 204 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 any other method is disabled while those pins are connected.
on page 13 for more information.
Input Selection
on page 32).
DTP2 T 204 Switcher • Operation
on
19
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