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Matrix Orbital GLK12232-25-SM Legacy User Manual

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Standard RS232 and TTL configuration

Standard

TTL

2.1.3 I²C Communications

TheGLK12232-25-Sm I2C communications running at 100 kBps and up to 127 units on a single
communications line. The I2C data line operates on 5 volts CMOS levels. The GLK12232-25-SM does not
work on I2C by default, three modifications have to be done, as shown in the picture.

See also other documents in the category Matrix Orbital Hardware: