Matrix Orbital GLT240128 Legacy - Manual (Page 13)

1 USB Connector 4 Protocol Select Jumpers
2 Touchpad Header 5 Filesystem Lock Jumper
3 Optional USB Header 6 Manual Override Jumper
Figure 11: GLT240128 USB
2.1 Communication Connectors
2.1.1 Power/Data Connector for Non-USB modules only
The Power/Data Connector provides a standard connector for powering the display module. The GLT240128
requires five volts for the standard display module, between nine to fifteen for the wide voltage (V) model,
and between nine to thirty-five volts for the wide voltage with efficient power supply module (VPT). The
voltage is applied through pins one and four of the four pin Power/Data Connector. Pins two and three are
reserved for serial transmission, using either the RS-232 or TTL protocol levels, depending on what has been
selected by the Protocol Select Jumpers.
Matrix Orbital GLT240128 8