FS2 Frame Synchronizer/Converter v3.0 107 www.aja.com
Appendix B – FS2 Pinouts
GPI Pinouts
The GPI inputs and outputs are electrically isolated from power and ground
on the FS2 frame. There are four inputs and four outputs. Electrical isolation is
provided for up to four pieces of external equipment.
Figure 15. GPI DE-15F Connector Pinout
1
15
11
5
6
10
Gr
ound
GPI I
n 1
GPI I
n 2
GPI I
n 3
GPI GND 1
GPI GND 2
GPI I
n 4
GPI O
ut 1
GPI O
ut 2
GPI GND 3
GPI GND 4
GPI O
ut 3
GPI O
ut 4
NC
Gr
ound
Table 7. Pinouts Description
Pin Function
Pin
Function
Pin Function
1
Ground
6
GPI GND 2
11
GPI GND 4
2
GPI In 1
7
GPI In 4
12
GPI OUT 3
3
GPI In 2
8
GPI OUT 1
13
GPI OUT 4
4
GPI In 3
9
GPI OUT 2
14
NC
5
GPI GND 1
10
GPI GND 3
15
Ground
The following guidelines apply to the four GPI inputs and outputs:
• GPI In 1 and GPI Out 1 share a common isolated ground on pin 5 (GPI GND 1).
• GPI In 2 and GPI Out 2 share a common isolated ground on pin 6 (GPI GND 2).
• GPI In 3 and GPI Out 3 share a common isolated ground on pin 10 (GPI GND 3).
• GPI In 4 and GPI Out 4 share a common isolated ground on pin 11 (GPI GND 4).
• Pins 1 and 15, local chassis ground, may only be used as references when
isolation is not required.
• All four GPI inputs are internally pulled high through a 10K ohm resistor to an
is5V supply, so that a relay contact closure or any device sinking at
least 0.4 mA to ground will register a logic low.
• All four GPI outputs are +5V TTL compatible, sourcing up to 6mA and sinking
up to 4mA each.
• GPI Inputs light the front panel EXT LED when triggered.
