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POWERING INSTRUNET FROM +12VDC OR BATTERIES
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Powering i2x0/i100/i4xx Hardware from +12VDC

This can be done by converting the 12VDC to 120VAC with a simple $40 upconverter, and then plugging the i312 power supply input connector into the upconverter, and then attaching the i312 output connector to the instruNet Device. Several suppliers are listed below:

  • 12V DC-to-AC converter, 140W, manufactured by Linksys, "Power2Go" brand name, $40, search "Power2Go" at www.cdw.com
  • 12V DC-to-AC converter, 300W, manufactured by Tripp Lite #PV300, $60
    - visit http://www.tripplite.com/products/product.cfm?productID=185
    - type "pv300" into part # search field at www.mouser.com
  • Type "power inverter" into the Search field at www.digikey.com
  • Type "power inverter" into the Search field at www.cdw.com
  • Type "power inverter" into the Advanced "key word" search field at www.mouser.com
  • Visit www.tripplite.com, drill to Inverters, Compact

The Power2Go device from Linksys consumes approx .7A @12V when there is no load, and an additional .25A for each iNet-100 devices attached.

Powering i2x0/i100/i4xx Hardware from Batteries


This can be done with a simple $100 battery back up UPS system, where the i312 power supply input connector is plugged into the UPS, and the i312 output connector is plugged into the instruNet Device. Each i100 draws approximately 5Watts, therefore, a 35Watt-Hour UPS should last approximately 7hrs with one i100 device, for example. For longer run times, one can acquire a larger and more expensive UPS. Several suppliers are listed below:

  • BC Personal Standby Backup 300VA, 110Vac, 300W, manuf by Tripp Lite, Part #BC PERS 300, $80, 35W-Hr ((175W * .5 load)/(60 minPerHr / 17 min))
    - type "545-300" into Part # Search field at www.mouser.com
    - type "BC PERS 300" into Search field at www.digikey.com
    - visit http://www.tripplite.com/products/product.cfm?productID=2
  • Type "ups systems" into the search engine at www.digikey.com, and then select an output power rating (e.g. 180W) or a brand name (e.g. BC Series) in the product selection system
  • Type "ups/battery backup up to 500va" into the Search field at www.cdw.com
  • Type "standby ups" into the Advanced Search field at www.mouser.com, Keyword Type "contains", Precision "all words"
  • Visit www.tripplite.com, drill to Ups Systems, BC Series
 
 
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