Matrix Orbital GTT50A - Manual (Page 11)

7 GTT50A Hardware Manual
Alternate USB Communication Header
Some advanced applications may prefer the straight four pin connection offered through the optional
Alternate USB Header. The Alternate USB Header may be added to the USB model for an added charge
as part of a custom order. Please use the Contact section to reach Sales for additional details.
Drivers
The latest drivers are available for download in a zipped file format at www.matrixorbital.ca/drivers . To
install or update the drivers installed on your PC, locate the GTT50A in your device manager, right click
its’ icon, select Update Driver Software, and manually point to the unzipped driver file.
4.4 I 2 C Communication/Power Header
A dedicated I 2 C header is available on all GTT50A models and provides the most basic protocol
connection to the unit.
Figure 11: I
2
C Communication/Power Header
Table 6: I 2 C Communication/Power Pinout
Pin Function
1 Vcc
2 SCL
3 SDA
4 Gnd
Voltage is applied through pins one and four of the header, please reference the electrical specifications
before applying power. Pins two and three are reserved for I
2 C clock and data signals respectively, both
of which should be pulled up to five volts using a resistance between one and ten kilohms. The Tyco
640456-4-LF style header used can be mated to a number of connectors, including Molex 22-01-3047.