beautypg.com

Matrix Orbital LK202-25 Legacy User Manual

Page 16

background image

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

2

C Communications

The display’s I

2

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

nications line. The I

2

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

2

C

communication. Please see figure below for appropriate modification. The jumps must be removed from the

RS232 selection and placed on the I2C selection.

Figure 14: I2C Select

For I

2

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

LK202-25

12

See also other documents in the category Matrix Orbital Hardware: