13.1
Video Switcher (NTSC)
Description
Video (NTSC) switcher is a signal
routing device that allows any inputs to be switched to any one or all the
outputs of the unit.
Features:
-
Video bandwidth – Adequate
video bandwidth to ensure no degradation of signal
-
Manual front panel control –
To allow manual operation of the unit.
-
Status repot – The
possibility of activating status request command via front panel and
computer controller
-
Seamless transition – Smooth
and seamless transition when switching between the inputs
-
Simple instruction codes for
control software – To
allow easy integration of the switcher into the computer controlled
environments
-
Balanced and unbalanced stereo
audio
-
Audio gain and attenuation
adjustable through front panel and computer controller
-
Audio follow video – To
allow switching of video and corresponding audio simultaneously. This
switcher should also allow any audio signal to be selected with any
video signal simultaneously to one or all outputs in any combination
via front panel or serial controller
-
Audio breakaway – To allow
breakaway any audio from its corresponding video signal via front
panel or serial controller
-
RS-232/422 control - To allow
computer remote control of the unit
-
Rack mountable
-
Flexible inputs and outputs
configuration – Such as 4 x 4, 8 x 4, 8 x 8, 12 x 4, 12 x 8, 12 x
12, 16 x 4, 16 x 8, 16 x 12, 16 x 16.
Specifications:
-
Video inputs:
-
Number of inputs --- 4, 8,
12, and 16
-
Type of signals --- NTSC
composite, HDTV, S-video
-
Type of connectors --- BNC
Female
-
Minimum and maximum input
levels --- Analog 0.5V to 2V p-p
-
Impedance --- 75 ohms
-
Video Bandwidth – 150
MHz @ (-3dB) full load
-
Crosstalk --- (-40 dB) @ 5
MHz
-
Switching Speed --- 250 ns
or better
-
Video Output:
-
Number of outputs --- 4,
8, 12, and 16
-
Type of outputs --- NTSC
composite, HDTV, S-video
-
Type of connectors --- BNC
Female
-
Minimum and maximum output
level --- 2 V p-p
-
Impedance --- 75 ohms
-
Audio Inputs:
-
Number of inputs --- 4, 8,
12, and16
-
Type of connectors --- 3.5
mm captive screw terminals
-
Impedance --- 12.5 k ohm
DC coupled balanced - 25 k ohms, DC coupled unbalanced
-
Maximum input level ---
19.5 dBu, balanced or unbalanced
-
Inputs gain adjustment ---
(-15 dB) to +9dB
-
Frequency response --- 20
Hz to 20 kHz @ 0.05 dB
08/29/00 |