Matrix Orbital PK202-25 User Manual

Page 16

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Table 7: Connector Pinout

Pin 1

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

Pin 2

Rx (receive data)

Pin 3

Tx (transmit data)

Pin 4

Ground

2.2.3 I

C Communications

The display I

C communications runs at 100 Kbps and supports up to 127 units on a single communi-

cations line. The I

C data line operates on 5 volt CMOS levels. One modification is required for I2C. The

RS232 jumper selection must be removed and placed on the I2C jumper selection. Please see figure below

for appropriate modification:

Figure 14: I2C Select

For I

C communication, a connection must be made via the 4 pin connector as per the figure and table

below:

1 2 3 4 1 2 3 4

Figure 15: Power Connector

Matrix Orbital

PK202-25

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