Matrix Orbital LK202-25 Legacy - Manual (Page 12)

2.1.3 Wide Voltage Range Modules
NOTE Do not use this cable unless the display module has the "Wide voltage range"
option (option V). Use of the 12 volt power cable with 5 volt modules will damage the
module.
The 12 volt power cable is designed for use with wide voltage range display modules mounted in a PC.
Wiring required for the 12 volt power connector is shown in the Figure below.
Figure 6: Wiring for 12 Volt Modules
Matrix Orbital can supply an adapter cable designed to use with the display module when it’s installed
in a PC. The cable is wired as shown in the Figure below.
Figure 7: 12 Volt Power Cable
2.2 Communication Connection
2.2.1 RS-232 Communications
A standard DB-9F is provided for RS-232 communications. This unit is set to RS232 communication
by factory default. Power may also be supplied via this connector if desired. See the Figure below for pin
connections.
Matrix Orbital LK202-25 8