[Soekris] pin out to tap 5V +/- on net4521
zac at zacwolf.com
Sat Oct 8 18:45:38 UTC 2005
For a net4521:
I need to first test an assumption:
The net4521 has a built in power regulator? So I can just drive it
directly off my truck's 12v power?
If so I'm wondering if anyone can advise as to which (if any) pins on
JP3 (the 14 pins near the power regulator) or JP9 (the 6 pins near the
power regulator) that would allow me to tap 5V +/- of regulated power
for powering a small GPS module&antenna circuit:
Operating Voltage 5 ± 0.25 Vdc, 50 mVp-p (max) **180 mA (continuous on)
DC Voltage 2.7V/3.0V/3.3V/5.0V/3.0V to 5.0V/other Current 5mA
Is there enough "spare" power on these pins to recommend doing it this
way, or should I use an external power supply (which would be a pain).
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