User Manual

18
OPERATION
Connect up SRPT-40A to the AC Line Receptacle or External
DC Supply
CAUTION & WARNING
NEVER CONNECT THE SRPT-40A TO THE AC LINE AND EITHER OF THE EXTERNAL DC
SUPPLIES AT THE SAME TIME.
DOING SO MAY DAMAGE THE INTERNAL SWITCHING SUPPLY OR THE EXTERNAL DC
SUPPLY.
AC Line Operation
Position AC LINE switch to “OFF”, then plug SRPT-40A into a 90 - 264 volt, AC, grounded, 3-prong receptacle.
WARNING
THIS EQUIPMENT MUST BE OPERATED WITH A 3-PRONG, GROUNDED, 90-264 VOLT, AC
OUTLET RECEPTACLE!
FAILURE TO USE A PROPERLY GROUNDED OUTLET COULD RESULT IN A SAFETY HAZARD
OR FAULTY EQUIPMENT PERFORMANCE.
IF AN EXTENSION CORD IS USED, IT MUST BE THE THREE-WIRE GROUNDING TYPE TO
INSURE SAFETY.
DO NOT CUT OFF THE GROUND PIN OF A 3-PRONG PLUG!!
External DC Supply (12-15 Volt) Operation
The front panel AC LINE switch does not control the External DC Supply (12-15 Volt) operation.
The external supply must be capable of delivering 10 Amps if running the SRPT-40A at 50 Watts. Connect three
positive leads of the supply to pins 6, 7, and 14 of the ACCESSORY connector. Connect three negative leads of the
supply to three of the four ground pins (pins 1, 8, 11, and 12) of the ACCESSORY connector. Each of the three positive
leads and each of the three negative leads should be an 18 gauge wire.
External DC Supply (15-30 Volt) Operation
The front panel AC LINE switch does not control the External DC Supply (15-30 Volt) operation.
The external supply must be capable of delivering 12 Amps if running the SRPT-40A at 50 Watts. Connect four
positive leads of the supply to the four 15-30VDC pins (pins 2, 3, 9, and 10). Connect four negative leads of the supply
to the four ground pins (pins 1, 8, 11, and 12). Each of the four positive leads and each of the four negative leads should
be an 18 gauge wire.