Interpower Corporation, Oskaloosa, IA, has introduced the 85521711 International Power Source (IPS), a source of AC power at various operating voltages and frequencies found around the world, which is important for testing any products that are exported. Common operating voltages and frequencies for global electrical products are typically 110-240VAC/50-60Hz. The IPS provides testing of AC electrical equipment at those common operating voltages and frequencies. It provides seven of the most common country-specific AC receptacles, ensuring that equipment under test utilizes the proper AC plug. The unit can also be used to simulate brownouts, or drops in voltage in an electrical system. It offers output power at 1725VA maximum, low-range (NEMA 5-20) variable at 10- 138VAC at 12.5Ams maximum, and a high-range (six standard international sockets) variable at 10- 276VAC at 6.25Ams maximum, 47-450Hz. Models are available with RS-232 and USB communications ports.