Protector Operation Manual
MegaHertz
Keywest Technology
14563 W. 96
th
Terrace
Lenexa, Kansas 66215
800.331.2019
www.keywesttechnology.com
15
10 July 2000
GPIO
The GPIO screen (fig. 10) can be accessed through the Main screen menu bar. Click on GPIO.
This screen allows for manual setting of the GPI and GPO functions. Each GPI and GPO has
multiple states of operation. For the ticker job however, only two are of significant
consideration.
As shown in figure 4, the GPI consists of a two-wire contact closure link from the video inserter
device. In the GUI, you want only GPI 1 to be used, and you have two states in which the GPI
should be set. GPI #1 Sequence Follow, and GPI # 1 Off. As you will see in the Event
Controller section of this manual, GPI #1 Sequence Follow will force the Protector to react to is
contact closures from the ad inserter. The Protector will “squeeze” the foreground (local ad
insert) while the GPI is low (or the contact closure is closed) and will return to full screen when
the GPI is high (or the contact closure is open).
Setting the GPI to OFF, will force the Protector to ignore GPI inputs. This mode is used when
you don’t want the Protector to compress the local ad (at times when the stock ticker is not on
the network feed—nights, weekends, holidays).
Figure 10
