Matrix Orbital VK204-25 Legacy - Manual (Page 10)

Figure 6: Wiring for 12V Modules
Matrix Orbital can supply an adapter cable designed for use with the display module when it’s installed
in a PC. The cable is wired as shown in the Figure below.
Figure 7: 12V Power Cable
2.1.4 RS-232 Communications
A standard DB-9F is provided for RS-232 communications. Power may also be supplied via this con-
nector if desired.
Figure 8: RS-232 and Power Connector
The RS-232 connector on the PC cable is wired so that a standard ’straight through’ 9 pin D-sub cable
may be used to connect the module to a standard serial port such as COM ports on PCs. Note that this device
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