OLPCorps Jamii OLPC Tanzania/Tech budget

Tech purchases

• Access points x3
  • D-Link DAP-1160 £34 x3 = £102
• 10/100 ethernet switch
  • edimax ES-3180P £11.95
• Network cables
  • 10m cat5 £6.89 x2 = £13.78
  • 30m cat5 £12.64
• USB disk drives
  • LG M4 1GB £4.59 x5 = £22.95
• Power splitters, assuming US plugs
  • Belkin SurgeMaster 6-Outlet $10 x24 = $240

Total: £163.32 + $240 = $490
+ $110 for shipping and budget changes
= $600

Questions:

• Which plug type do the XOs come with?
• Will the XOs always be stationed in the same classes?
  • We would want to have access points near the XOs, which may mean installing more than would be needed for 100 XOs (simply so that all usage locations are covered).
• Can we link the access points using ethernet cables, or do we have to rely on wireless distribution?
  • I guessed with some cable details above
• Which power plugs come with the XO chargers? (asked on corps list)
  • We can hopefully buy the appropriate power splitters for schools, but if the children want to take them home then we would need individual travel adapters, unless we are provided with the correct power plugs.
  • Which plug type is available at the school?
  • Do children usually have electricity at home? If so, which type of plugs?

Electricty usage

• 100 laptops at 5W for 6 hours per day = 5W x 100 laptops x 6 hours = 3000 watt-hours
• 1 XS at 150W for 8 hours per day = 150W * 8 hours = 1200 watt-hours
• 3 APs at 35W for 8 hours per day = 35W * 3 * 8 hours = 840 watt-hours

Total: 5040 watt-hours every school day