--- In Eddie Dawydiuk <> wrote:
Thanks everybody. I have had some creative replies, but the concensus seems to
be
power. This is not going to be a problem in the field, as I have a 540amp hour
12V
battery available as a power source - should be good for a few HUNDRED amps of
instantaneous surge!
The more immediate problem is how to avoid a proliferation of additional
components. I
was using the TS enclosure precisely because it is a neat tidy box with power
conditioning
and relevant I/O connectors.
The modem data sheet claims it take 300mA typical, 1.3A max.
Is there a schematic available for the TS722 IO/power board? The IC on it says
MBAD2762M5.0, which I suupose is equivalent to a LM2762N5.0, which is a 5V 1A
regulator. I think I'll put in a separate 5V regulator and wire it to the
middle pin of the
modem voltage selection jumper, with no jumper present. So nothing the modem
can do
can spike the power to the TS7260.
Martin
>
> Hello,
>
> > You want the second option. I can't remember the exact jumper right now,
> > but
> > it's in the manual.
>
> I agree if JP7 is not present this could be causing the problem, if you are
> supplying the TS-760 regulated 5V, JP7 should be present.
No - I am feeding the enclosure with between 12 and 15V from a lead acid
battery which
is charged by photovoltaic array. It's a fairly dirty supply, but with an
enormous amount of
'umph' behind it - enough to melt spanners dropped across terminals!
>
> //Eddie
>
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