User's Manual

18
©2013 Broadcast Electronics
Rear Panel Connections 3
Before assembling the system, please take some time to familiarize yourself with all of the
connectivity features included in STXe Systems.
Note that “low” logic in the context of machine interface connections refers to a connection to logic
ground pins. “High” logic is a connection to +5V (supplied by GPIO pin 32). Active edge refers to a
transition from the inactive state to the active state. Inactive inputs are internally pulled high and
should be open/floating, and not driven. Active low refers to a momentary transition from the high
state to the low state, and the implication is that no action is performed on the transition back to
high. A momentary input pulse such as this should be approximately 100ms in duration to ensure
capture of the event.
Figure 2 –Rear Panel
3.1.1
GPIO
General purpose input/output connector. This D-Sub 37 male connector is used in
remote station interface control and other machine interfacing. Pin descriptions are
described in detail in Table 2.
15
13
1
2
5
3
6
7
8
9
10
4
11
12
16
17
19
20
18
14