Comm Box DaVinci Instrukcja Użytkownika Pobierz pdf (Strona 4)

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Third Party Integration

The USB switcher is powered from the USB host(s) to which it is connected.

Control is via the 10 way IDC ribbon header.

Your 3

part controller needs two active low or TTL level outputs – the USB switcher will pull

them high to 3.3 volts via 20k ohms. To select hosts 2, 3 or 4, pull the lines low according to

the truth table below.

Connections and control truth table

Host 1

Host 2

Host 3

Host 4

Pin 5

Pin 6

Pin 9

GND

(Trace is Pin 1)

1 2 3 4

Brak uwag

Comm Box DaVinci Instrukcja Użytkownika Strona 4