Hi,
Just to follow up this subject, I have connected the Huawei modem to
the TS-7260 using a powered usb hub. Now the TS works stable and does
not reboot.
Now I am working to solve the software issues with the usbserial
driver. To start with, the TS (running its default 2.4 kernel) does
not recognize neither the Huawei Modem nor a Prolific 2303 based USB-
Serial adapter.
Regards,
Javier///
--- In "naturalwatt" <> wrote:
>
> --- In Samuel <emddjava@> wrote:
>
> >
> > I am trying to use a Huawei E226 HSPA Modem
> > (http://www.huawei. com/mobileweb/ en/products/ view.do?id= 282)
with the
> SNIP
> >
> > The first problem I have found is that the 7260 becomes very
unstable
> > just by plugging the modem in. The board reboots several times
until
> > it finally gets to the login prompt. Once there, it may lock or
> > reboot again after several minutes with no other action from my
side.
>
> The reboot is more than likely due to power surges taken by the
modem. I used a GSM
> modem on TS7260 and found that I needed a PSU capable of handling
spikes of 3A
> otherwise the thing would reboot (probably due to brownouts) every
time it tried to log
> onto the network.
>
> The overall power requirement was low, but the peak requirement was
high.
>
> I have also seen this behaviour with USB devices that take a power-
on surge.
>
>
> Martin
>
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