Matrix Orbital PK162-12 - Manual (Page 13)

2.1.1 Power Through DB-9 Jumper
In order to provide power through pin 9 of the DB-9 Connector you must place a solder jumper on the
Power through DB-9 Jumper pictured in figure 10 below. The PK162-12 allows all voltage models to use the
power through DB-9 option, see table 1 on the following page for display module voltage requirements.
Figure 10: Power Through DB-9 Jumper
WARNING Do not apply voltage through pin 9 of the DB-9 connector
AND through the Power/Data Connector at the same time.
2.2 Power/Data Connector
The Power/Data Connector provides a standard connector for powering the display module. The PK162-
12 requires five volts for the standard display module, between nine to fifteen for the wide voltage (V)
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/TTL or the I
2 C protocol, depending on what has
been selected by the Protocol Select Jumpers.
Pin 1 PWR (See table 1 on the next
page)
Pin 2 Rx \ SCL (I 2 C clock)
Pin 3 Tx \ SDA (I 2 C data)
Pin 4 GND
Figure 11: Power Connector and Pin out
Matrix Orbital PK162-12 9