[time-nuts] Thunderbolt Power Question

[michael taylor]

On Sat, Jul 5, 2008 at 10:44 PM, Tom Clifton <kc0vsj at yahoo.com> wrote:
> As I sit here reviewing the power requirements for the Thunderbolt, I note that the -12v is only 10ma.  Does this indicate that it is only used for the RS232 output and if so for a battery backup I can "cheat" and only service the +12v (750ma)and +5v (400ma)?
>

I'm not sure, but it may be (also?) used for an op-amp as -Vs.