Matrix-orbital VK202-25 Legacy Manual do Utilizador descarregar pdf (Página 9)

VK202-25 rev. 05

Pin 2 SCL (I

C clock)

Pin 3 SDA (I

C data)

Pin 4 Ground

2.1.1.1 Five Volt Modules

If the VK202-25 is used in a PC it is tempting to plug a spare power connector into the unit. Don't do this!

Wiring for the PC power connector and that required for the VK202-25 are different as shown in Figure 2-3

below.

Figure 2-3 Power Connector wiring differences

If you don't want to modify cable wiring yourself, Matrix Orbital can supply an adapter cable designed to

use with the VK202-25 when it's installed in a PC. The cable is wired as shown in Figure 2-4 below. Note

that this connector does not provide connections for I

Figure 2-4 Power Adapter Cable

2.1.1.2 Wide Voltage Range Modules

Note: Do not use this cable unless your display module has the "wide voltage range" option (option V). Use

of the 12 volt power cable with 5 volt modules will damage the module.

The 12 volt power cable is designed for use with wide voltage range display modules mounted in a PC.

Wiring required for the 12 volt power connector is shown in Figure 2-5 below.

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Matrix-orbital VK202-25 Legacy Manual do Utilizador Página 9