Operating basics
Table 2-4: GPS7
module LTC/GPI connector pin assignments
Pin # Function VGA cable
1
GP01 Red BNC
2
GP02 Green BNC
3
GPI Blue BNC
4 No connecti
on
5
LTC4N
6
Ground Ground
7
LTC3N Ground
8
LTC2N Ground
9 No connection
10
LTC1N Ground
11 No connection
12
LTC3P
13
LTC2P H BNC
14
LTC1P V BNC
15
LTC4P
BLACK 1 / REF IN: Outputs the selected black b urst or HDTV trilevel
sync signal. You can also configure this connector to receive analog video,
HD tri-level sync, or CW signals for use as a Genlock reference. The GPS7
mo
dule will sync with CW signals at 1, 3.58, 4.43, 5, or 10 MHz. (Earlier
GPS7 modules do not have the reference input capability. On these modules,
the connector is labeled BLACK 1.)
BLACK 2: Outputs the selected black burst or HDTV trilevel sync signal.
You can configure this output connector to turn off if certain errors are
detected. The output will remain off as long as the error occurs. Use this
function to trigger a downstream ECO to switch to backup.
BLACK 3 / 10 MHz: Outputs the selected black burst or HDTV trilevel sync
signal. You can also configure this connector to output a 10 MHz sine wave.
(Thisconnectorislabeled10 MHz / BLACK 3 on earlier GPS7 modules.)
NOTE. You can use the menus to independently set the format and timing of the
three black outputs and to enable VITC to be applied to the output signal.
For HD trilevel sync signals, the BLACK 1, 2, and 3 outputs are a group that must
all output either integer or non-integer rates. (See page 3-126, GPS7 module HD
TRI-LEVEL SYNC RATE submenu.)
2–14 TG8000 Multiformat Test Signal Generator User Manual
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