AEQ FORUM
Digital audio mixer for broadcast applications
20
2.2.2.1. GPIO.
AEQ FORUM incorporates several electronic general purpose interfaces (GPIO), either of the
opto-coupled or physical contact type and always available on the rear panel of the unit
2.2.2.1.1. Opto-coupled GPI.
The AEQ FORUM includes 8 electronic interface of opto-coupled type GPIs through the two
female DB9 connectors in the “GP INPUTS” section. One of them houses the GPIs numbered
from 1 to 4 and the other one from 5 to 8.
Specifications:
• Opto-coupler protected inputs (TLP127).
• Maximum Input Current: 50mA.
• Applicable voltage: from 5V to 24V.
Electronic associated with opto-coupled GPI
In order to simplify the installation, AEQ offers a prefabricated wiring kit specifically for GPI
inputs: CAB FR GPI, male DB9 connector soldered to 4 meters of cable open-end termination
for GPI. More information in section 2.2.4 of this manual.
GPI inputs (2 x SUB-D female 9 pin):
Pin
GP INPUTS 1 To 4
connector
GP INPUTS 5 To 8
connector
1 GPIN1 GPIN5
2 GPIN2 GPIN6
3 GPIN3 GPIN7
4 GPIN4 GPIN8
5 Not connected Not connected
6 GND_GPIN1 GND_GPIN5
7 GND_GPIN2 GND_GPIN6
8 GND_GPIN3 GND_GPIN7
9 GND_GPIN4 GND_GPIN8
OPTO-COUPLED
GENERAL
PURPOSE
INPUTS
RELAY CONTACT
GENERAL
PURPOSE
OUTPUTS
OPTO-COUPLED
GENERAL PURPOSE
OUTPUTS
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