|
Support Files
Contact us
What's New
Product Design and Manufacturing
Industry Links
|
| The VI series of automatic audio/video switches allows two different
video devices (i.e., a laser disc player and a VCR) to be connected to
a single monitor. The VI-2 detects which source is delivering a signal
and routes the signal to the monitor. This eliminates the need to run one
video device through another, thus preventing any signal loss. The VI-2
can detect either video or audio signals so it can be used as an expansion
input on an audio pre-amp. The VI is designed so that if both signals are
present, the VI-2 will give priority to the device on the Video B connection.
The VI-2 can be used to allow a laser disc player and a VCR to both have
direct connection to the monitor. This eliminates operating confusion as
well as line noise through excess wiring. Since the VI-2 can be used to
switch audio, it is particularly suited for use in home surround sound
systems where the hi-fi system and surround processor share the same power
amplifier. The VI-2 offers automatic switching of the input signal to the
power amplifier.
The VI-2 is designed to switch baseband composite video signals and
stereo audio, while the VI-3 is designed to switch Y/C (S-VHS) video and
stereo audio.
Another alternative: VR-2
|
 |
What about car installations?
The VI-2 is designed to be operated on 12 volts DC. This allows installations
in automobile and marine applications running the VI-2 off the battery.
Simply remove the wall adapter supplied and connect into the DC battery
power.
The VI-2RS includes a serial port for computer or home
automation control. It is not automatic.
VI-2 Electrical Specifications
|
| Power Requirements |
12 vdc, 100mA |
| Sensing Impedence |
20,000 ohms min. |
| Signal Sensitivity |
Adjustable to allow for system noise |
| Switching Time A to B |
0.1 seconds |
| Switching Time B to A |
Adjustable for 2 to 35 seconds |
| Priority |
A signal on the Video B or Left Audio B will override the A input |
| Video Specifications |
-
input: unbalanced, 1 vpp terminated into 75 ohms
-
outputs: unbalanced, 1 vpp terminated into 75 ohms
-
10 mHz bandwidth
-
3.0% delta gain
|
| Audio Specifications |
-
input: unbalanced, 2 vpp terminated into 20,000 ohms
-
output: unbalanced, 150 ohm impedance
-
50 kHz bandwidth
-
THD + noise: <0.1%, 20 to 20 kHz at 1vpp ref.
-
stereo crosstalk: -80 dB at 1 kHz
|
|
