Matrix Orbital GLC24064 - Manual (Page 11)

Table 2: Connector Pinout
Pin 4 Ground
Pin 3 SDA (I 2 C data) / Rx
Pin 2 SCL (I 2 C clock) / Tx
Pin 1 Vdc
2.1.2 Five volt Power Cable
If a display module is used in a PC, it becomes tempting to plug a spare power connector into the unit.
Do not do this! Wiring for the PC power connector and that required for the module are different, as shown
in the Figure below.
Figure 7: Wiring for 5 Volt Modules
Matrix Orbital can supply an adapter cable designed for use with the display module when it’s installed
in a PC, if the user would like to modify cable wiring.
Figure 8: Five Volt Power Cable
Simply insert the splitter cable in series with a ’large’ power connector (e.g. one going to a hard drive)
and plug the small connector into the display module. The connector is ’keyed’ and will only fit one way.
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