Extron Electronics IN3566HR - Manual (Page 9)

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IN3564HR / IN3566HR Operation Manual - Preliminary 7/30/99 © 1999 - INLINE Inc.
OPERATION
The IN3564HR / IN3566HR Switcher features Auto Power On, so the unit powers up automatically
when A/C power is applied. The IN3564HR and IN3566HR Switchers provide four and six front
panel buttons (respectively) which, when in Manual Mode, may be used to select the desired input
channels. Input one is automatically selected at power up. In order to select a different input, press
the corresponding input button and the appropriate LED will light to indicate the current active
channel.
When the Autoswitch Mode is selected (switch is located on the back of the unit), the unit will
automatically select the active input. If the switcher is connected to more than one input, the
Autoswitch Mode will automatically select the highest input (Example: Input three will supercede
inputs one and two, providing that the rest of the inputs are unterminated).
All non-selected channels are terminated to 75 ohms. The output signal may be blanked (no input
selected) by pressing the Blank Button on the front of the unit. Input channels may also be selected
remotely by using the optional IN3950 hardwired remote control.
Since these switchers are passive they are also bi-directional, meaning that signals may pass both
ways through the unit. In such an installation, a single source signal is run through the output
connector and multiple display devices are attached to the input receptacles. The source signal is
routed to the attached display device whose input switch is selected.
REMOTE CONTROL OPERATION
The IN3564HR / IN3566HR Switcher has a Remote Port located on the back of the unit. Channels
can be selected through the Remote Port by providing contact closures between the appropriate pins.
The port also includes a +5V power supply and tally outputs. Several contact closure type control
devices are available including:
•
IN3590 - An optional hard-wired remote designed to work with all IN3500 Series
switchers.
•
IN6901 / IN6902 RS-232 to Contact Closure Converter - allows IN3500 Series
switchers and other INLINE devices with contact closure control ports to be controlled
by RS-232 sources such as control systems and computer serial ports.
•
Control Systems - many control systems are capable of providing contact closures.
Control Parameters - In order to select a channel, the channel select pin (pins 1 - 6) must connected
to Common (pin 7 or 8). The contact closures may be momentary or continuous (Example: To switch
to input channel 4, apply a contact closure between pin 4 and pin 7). If two channels are selected
simultaneously, the output of the switcher is blanked (no output is selected). In order to maintain
blanking, these two closures must be continuous.
Tally Output - The remote control port also provides Tally Outputs (pins 10-15) which may be used
to trigger other devices, provide feedback to a control system or light indicator lights on a custom
remote control panel. When a channel is selected, either from the front panel or through the remote
control port, the Tally Output for that channel is switched on. The Tally Output can switch voltages
of up to 50 volts and current up to 1.5 amps.