Avid Technology AirSpeed 5000 Guia de preparacion descargar pdf (Pagina 123)

Connector Pinouts and Connections

109

GPIO Connector Specifications

The GPIO Connector is provided by a DB25 Connector on the rear of the of the Multi I/O

Expansion Panel.

The GPIO pinouts are “relay closure” driven signals.

The GPIO inputs have internal pullups, and the inputs should be driven with an external relay

closure to ground to send the input low. Alternately, the inputs can be driven with a high/low

electrical driver (CMOS or TTL), as long as the driver can sink 20mA when driving to a low

state.

The GPIO outputs are driven by the AirSpeed 5000 with a relay closure to ground, with the

ability to sink at least 20mA. You must provide an external pullup resistor for the outputs.

The GPIO connector has the following pinouts:

DB25 Connector Pin Assignments, Female

Pin # Signal Pin # Signal Pin # Signal

1 GP Input 0 10 Ground 19 GP Output 5

2 GP Input 1 11 Ground 20 GP Output 6

3 GP Input 2 12 Ground 21 GP Output 7

4 GP Input 3 13 Ground 22 Ground

5 GP Input 4 14 GP Output 0 23 Ground

6 GP Input 5 15 GP Output 1 24 Ground

7 GP Input 6 16 GP Output 2 25 Ground

8 GP Input 7 17 GP Output 3

9 No connect 18 GP Output 4

1 2 ... 118 119 120 121 122 123 124 125 126 127 128 ... 137 138

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Avid Technology AirSpeed 5000 Guia de preparacion Pagina 123