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Matrix Orbital LCD/VFD Legacy User Manual

Page 8

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Connector pinout is as follows;

Figure 4: Power Connector

Table 3: Connector Pinout

Pin 4

Ground

Pin 3

SDA (I

2

C data)

Pin 2

SCL (I

2

C clock)

Pin 1

+5.0 VDC (+7 to +15 VDC with wide voltage option)

2.1.2 Five Volt Modules

If the display is used in a PC it becomes 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 display are different as shown in the

Figure below.

Figure 5: Wiring for 5V Modules

Matrix Orbital can supply an adapter cable designed to use with the display when it’s installed in a PC.

The cable is wired as shown in the Figure below.

NOTE This cable does not provide connections for I

2

C.

Matrix Orbital

LCD4041

5