evertz 7708VB-8-HSE, Руководство пользователя

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7708VB-8-HSE User Manual
8 SDI/ASI or 6 HD-SDI plus Ethernet Fiber Transceiver
Page - 18
Revision 0.1
4.4.1. Controlling the LED Status Indicators
The LED status indicators can be controlled using menu selections. To configure the LED status
indicators from the
CTRL
menu, use the shaft encoder/pushbutton to select the
LED
menu item. The
following selections are available:
CTRL
VIN
Selects video input status for display according to section
4.1.
VOUT
Selects video output status for display according to section
4.1.
LED
VIN
VOUT
4.4.2. Controlling the Video Standard Restriction
The 7708VB-8 can output even-rate video (e.g., 60Hz), or /1.001 video (e.g.59.94Hz). Upon an output
change between even-rate and /1.001 standards, the corresponding video input will receive a glitch.
For this reason, a selection is provided to restrict the accepted video input/output rate/standard. To
configure the video standard restriction from the
CTRL
menu, use the shaft encoder/pushbutton to
select the
VID
menu item, then the
STD
menu item, and then choose the desired video channel
VIO1
to
VIO8
. The following selections are available:
CTRL
AUTO
Does not restrict the video standard. Output will track the
corresponding input.
SET1
Restricts the video input to even-rate standards. Examples
of even-rate are those having 60Hz, 50Hz, 48Hz, 30Hz,
25Hz or 24Hz field rates, plus all SD signals.
SET2
Restricts the video input to /1.001 standards. Examples of
even-rate are those having 59.94Hz, 47.96Hz, 29.97Hz or
23.98Hz field rates.
VID
STD
VIO1 to VIO8
AUTO
SET1
SET2
To explain further by example, if Video Output 1 is changed from 1080i/60 to SD, then the
corresponding Video Input 1 will not receive a glitch, since both output standards are even-rate.
As another example, if Video Output 1 is changed from 1080i/60 to 1080i/59.94, then the
corresponding Video input 1 (and only this input) will receive a glitch. However, the glitch can be
avoided in this second example by selecting CTRL/VID/STD/VID1/SET1. In this case, upon change to
1080i/59.94, the new signal will be denied, the corresponding card-edge LED will illuminate amber, and
the corresponding STAT/VIN menu item will indicate DENY…STD.