3–2 • User Controls
HDC-8223A(-S) User Manual (Iss. 03)
Control and Monitoring Features
This section describes the card-edge status LEDs and display. These LEDs and the display show
status and error conditions relating to the card itself and remote (network) communications
(where applicable). Because these LEDs are part of the card itself and require no external
interface, the LEDs are particularly useful in the event of communications problems with external
devices such as network remote control devices. Refer to
Figure 3.1
HDC-8223A(-S) Card-edge Controls
Status LEDs
provides basic LED descriptions.
Table 3.1 LEDs on the HDC-8223A
LED
Color
Display and Description
COM
Flashing Blue
When flashing, this LED indicates that the HDC-8223A is
receiving control message from DashBoard.
REF
Blue
When lit, this LED indicates that the HDC-8223A is receiving
valid reference.
ERR
Red
When lit, this LED indicates an internal error.
SDI IN #
Blue
Four blue LEDs for each SDI input (A and B) indicate the input
signal raster format being received and locked onto by the
HDC-8223A(-S) (LOCK, 3G, HD, SD).
Continuous cycling of the LEDs indicates the HDC-8223A(-S)
has not locked onto a particular format (as in the case of no
signal input).
Flashing Blue
When flashing, this LED indicates that the HDC-8223A(-S) is
receiving a signal which cannot be processed.
4-Character Display
COM LED
REF LED
ERR LED
HD LED
3G LED
SD LED
LOCK LED
SDI IN A
HD LED
3G LED
SD LED
LOCK LED
SDI IN B
