Extron electronics SW USB Series Provozní pokyny stáhnout pdf (Strana 28)

Operation, cont’d

SW USB Series • Operation

3-6

PRELIMINARY

The following table shows the SIS commands that are issued when inputs are

selected by contact closure:

Contact closure

selection

SIS command sent

via RS-232 Pass Thru

Function on the

A/V switcher

Pin 1 to

1! Select input 1

Pin 2 to

2! Select input 2

Pin 3 to

3! Select input 3

Pin 4 to

4! Select input 4

Enabling front panel lockout (executive mode)

Executive mode disables all front panel controls, locking out the user from those

functions. Putting the switcher in this mode enhances security by protecting

against inappropriate or accidental changes to settings. When the SW USB is in

executive mode, RS-232 and contact closure remain available.

To lock the front panel, see the illustration below.

Release buttons.

Press and hold simultaneously

for 5 seconds.

EXEC

MODE

Exec Mode LED lights

to indicate that

executive mode is on.

Setting executive mode

To exit executive mode, repeat the procedure described above. When the SW USB

is no longer in executive mode, the red LED turns off.

Resetting

To reset the switcher to its factory default settings from the front panel,

. Disconnect power from the SW USB.

2. Press and hold the Input 1 button while applying power to the unit.

The Input LEDs blink three times to indicate that a reset has occurred. The input

selection defaults to input 1, and the Input 1 LED lights.

Host emulation (SW4 USB Plus only)

The SW4 USB Plus model provides host emulation to peripheral devices on the

output of the switcher. If a keyboard, mouse, or both are connected to output port 3

or 4, and the Host Emulation DIP switch(es) are set to On, the SW USB emulates

a host PC to the connected peripheral device. The keyboard or mouse connected

to the switcher’s port 3 or 4 still responds as if it were attached directly to the

computer on the selected input.

Host emulation allows instant communication of the emulated ports when the

SW USB switches to another input, by eliminating the delay that normally occurs

when a computer recognizes a new device.

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