Re: NTP sever on an isolated Network

Unruh wrote:
Steve Kostecke <kostecke@xxxxxxx> writes:
You're assuming that all computers / SBCs / Embedded Systems have a USB
port.

Agreed, it you do not have a usb port, you cannot get power from it. Then you have to get power from elsewhere. Getting it from the serial port
is almost certainly not going to work (but yes, if you are extremely lucky
you might be able to ) The chances of that embedded system having usb port are probably
higher than the chances that such an embedded system has a PCI or ISA slot
to stick in some external brand of serial port which can supply power. The easiest way of getting the 8-30V that the Garmin 18PC needs is
probably from a laptop powersupply brick. The 4.5-5.5 volts that the 18LVC needs
might be a cell phone charger or the usb port.

I ran my original self-assembled Motorola Oncore (8 channels, using the TAPR.org interface board) for years with the naked electronics stuffed into a plastic bag taped to the side of the old Pentium-90 I used to run FreeBSD, and with the power coming from a cable I threaded into the cabinet and piggybacked the naked leads into one of the disk drive power connectors. :-)

A 12/5 V disk/floppy/CD power cable is quite common even in embedded gear.

Terje
--
- <Terje.Mathisen@xxxxxxxxxxxxx>
"almost all programming can be viewed as an exercise in caching"
.

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