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V1682OPMA.doc
17 February, 2005
2.6 FRONT
PANEL
REM
+V
Local
Rem
V1682
VALID
Reader
DART Control Access and Power indicators
CAL and OFF LEDs
REMOTE / LOCAL control selection
Video Signal Status
SDI
VALID
SELECT Button
Display
+
-
Cal
Select
MENU
Buttons
VALID RD
The front panel on the V1682 is a considerable advance on what is usually available on single
module interface equipment. It provides the user with total control and monitoring of the unit without
the need to consult manuals and read unlabelled indications. While this kind of control is generally
available with a remote control system, as it is over DART, it is unusual to have this level of access
locally.
At first use the menu system may seem cumbersome but with only a small amount of practice it will
become very easy to use.
2.6.1 Direct Indications
The four LEDs at the top of the panel provide these direct indications of the unit:
REM
Short blinks to indicate access by the DART controller, if fitted. It does
not
directly
indicate that the unit is in remote control mode. If the rack frame does not have a
Rack Controller fitted then this LED will not blink.
+V
Indicates that the main +5V is present on the board. This is derived from the +15V
distributed through the rack. The V1682 does have many power rails, but only the
main +5V is indicated here. It will, of course, be off if the fuse, FS1, were to have
been blown.
SDI
Indicates that a D1 signal is being received.
VALID
Indicates that a VALID test signal is being received. This LED ‘winks’ every 4
seconds, in synchronised to the ‘black flash’ in the video input.
