Matrix Orbital PK202-24-USB - Manual (Page 14)

WARNINGS
•
RPM Reading should not be used at 5V.
•
There are no current limiting resistors.
•
Maximum current draw is 1000mA.
•
Default voltage setting is 12V.
•
As of Firmware Revision 2.1, the default PWM frequency is
19.1Hz.
2.2.2 Advanced GPO Power Select
12 Volt 5 Volt
Figure 9: High / Low Power Select
When the jumper is placed in the high power position, the unit supplies +12V to the advanced GPOs. If
the jumper is placed in the low power position, +5V is supplied to the GPOs. For 12V, external power by a
3.5” floppy connector will be required.
Matrix Orbital PK202-24-USB 10