PTC-892 version 1 C
18
PTC-892 Submenus and Displays (continued)
Negative Pedestal Menu
Figure 20
Turn the menu knob right from the
Weather Lift Menu
and the
Negative
Pedestal Menu
is displayed. Pressing the menu knob, allows you to select the following
options:
>
Back (no selection)
>
OFF (0 IRE)
>
ON (-7.5 IRE)
When on this puts a negative pedestal on the SDI encoded line. This option is
available because some digital to analog converters put a pedestal on the encoded line,
which makes the encoded insert violate EIA-608 specifications. This allows you to fix
the pedestal that shouldn’t be there. Pressing the menu knob from here, returns you to
the
Negative Pedestal Menu
.
Port 1 Selection Menu
Figure 21
Turn the menu knob right from the
Negative Pedestal Menu
and the
Port 1
Selection Menu
is displayed. Pressing the menu knob, allows you to select the
following options:
>
Back (no selection)
>
RS-232 port 1
>
USB port
This allows you to manually choose USB or RS-232 for port 1. For port 2 this is
done automatically when the optional modem goes off hook, it takes over for port 2.
RS-232 for port 2 gets control back when modem is disconnected. Pressing the menu
knob from here, returns you to the
Port 1 Selection Menu
.
Содержание Caption Encoder/Decoder SD SDI/Analog PTC-892
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