Tektronix 2200 Switch User Manual


 
2-41
Software Setup
Configuring GPI Outputs
Use the GPI Outputs Menu to set E-MEM levels for each assigned
GPI. You can also set up GPI outputs which trigger each time there
is a cut on the PGM Bus, and set the length of the GPI trigger
signal. This menu is accessed from the Config/External If Menu.
1. Use the PGM CUT TRIGGER button to select a GPI number which
will trigger each time there is a cut on the PGM Bus. This GPI
is typically connected to an external device such as a clock/
timer which is reset by each trigger. Such a clock would then
indicate how long the current source has been on air.
2. Use the
SELECT GPI button to select the desired GPI number.
3. Press the E-MEM LEVEL button to select the desired E-MEM level
for the selected GPI number.
4. Use the LENGTH soft knob to select (in number of fields) the
required GPI duration. Use this to set the duration of GPI
output triggers.
5. Repeat Steps 1 through 3 for other GPIs.
GPI OUTPUTS MENU
GPI 7
GPI 6
GPI 5
GPI 4
GPI 3
GPI 2
GPI 1
OFF
config / external if / gpi outputs
PGM CUT
TRIGGER
E-MEM
LEVEL
LENGTH
= 1 Field
GPI 8 7
SELECT
GPI
DPM 3
DPM 2
DPM 1
MISC
DPM 4
5
6
8
7
MISC
MISC
MISC
MISC
4 MISC
3 MISC
2 MISC
1 MISC
LEVEL LENGTH
1
1
1
1
1
1
1
1