10 tally/gpi/gpo, Tally/gpi/gpo, Tally breakout adapter – Grass Valley Indigo AV Mixer v.1.2.2 User Manual
Page 30: Figure 16. gpi / tally / gpo connector, Figure 17. tally breakout adapter

30
INDIGO AV Mixer
User Manual
Section 3 — Connections
3.10 Tally/GPI/GPO
Use the GPI / TALLY / GPO 50-pin Sub-D connector to control external
devices via relays, or to send and receive control signals and events.
Figure 16. GPI / TALLY / GPO connector
The GPI / TALLY / GPO connector provides:
•
16 outputs, usable as tally out or GPO
This lets you open and close connections between two corresponding
pins of the connector, to control external devices or relays.
•
8 inputs, usable as tally in or GPI
By opening/closing the connection between two corresponding pins
of the connector, you activate functions like transitions or audio
channel on/off (see GPIO Submenu on page 138).
Tally Breakout Adapter
The optional Tally Breakout Adapter provides an easy way to use the
GPI / TALLY / GPO
connector.
Figure 17. Tally Breakout Adapter
OFF
5V=
3V3
GND
3V3
GND
3V3
OFF
GND
GND
3V3
INDIGO GPI / TALLY / GPO BREAKOUT ADAPTER
GPI
GPO
GPO
8
7
6
5
4
3
2
1
16 15 14 13 12
11
10
9
8
7
6
5
4
3
2
1