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Archived from groups: alt.internet.wireless (More info?)
I have designed and installed a number of licenced band and ISM radio
systems that use microprocessor-controlled electronic modules for
various functions. Experience has been that these modules lock-up not
infrequently, due to power glitches and static discharges during
lightning storms and AC power interruptions.
While some equipment will recover from an interruption by rebuilding
its data flow to the desired transfer rate, other devices require a
reboot to clear a lock-up.
Recently, we had our first lock-up of a Canopy trunk and distribution
system at a remote site. An electrical storm had caused a lock-up that
prohibited us from connecting with the backhaul unit via telnet.
Technical support was dispatched to travel to the site and investigate
further. Our technician found that there was no data transfer from the
BH to the AP and that he had to reset the default IP addresses for
both the AP and BH, using the default plug and a power-off in order to
clear the lock-up. After this activity, the custom IP addresses were
then re-entered via the keyboard. In short, there is a method to clear
this type of lock-up, but it requires physically accessing the radio.
Given that we are contemplating implementing systems in that are
several hundred miles from experienced technical resources in
extremely remote areas that experience electrical storms and hydro
power outages on a regular basis, the thought that a technician would
have to be dispatched to clear this type of lock-up is "bone-chilling"
to say the least, both in terms of downtime and the substantial costs
that would be suffered in performing what is a relatively simple fix.
Does anyone know of suppliers that provide remote access and control
equipment that can be used to remotely clear this type of lock-up via
a dial-up telephone facility and a modem?
This issue would seem to be a very substantial consideration to the
use of Canopy, and similar, wireless systems and their ongoing
operation in remote locations.
Bill Evans
Winnipeg, Manitoba
I have designed and installed a number of licenced band and ISM radio
systems that use microprocessor-controlled electronic modules for
various functions. Experience has been that these modules lock-up not
infrequently, due to power glitches and static discharges during
lightning storms and AC power interruptions.
While some equipment will recover from an interruption by rebuilding
its data flow to the desired transfer rate, other devices require a
reboot to clear a lock-up.
Recently, we had our first lock-up of a Canopy trunk and distribution
system at a remote site. An electrical storm had caused a lock-up that
prohibited us from connecting with the backhaul unit via telnet.
Technical support was dispatched to travel to the site and investigate
further. Our technician found that there was no data transfer from the
BH to the AP and that he had to reset the default IP addresses for
both the AP and BH, using the default plug and a power-off in order to
clear the lock-up. After this activity, the custom IP addresses were
then re-entered via the keyboard. In short, there is a method to clear
this type of lock-up, but it requires physically accessing the radio.
Given that we are contemplating implementing systems in that are
several hundred miles from experienced technical resources in
extremely remote areas that experience electrical storms and hydro
power outages on a regular basis, the thought that a technician would
have to be dispatched to clear this type of lock-up is "bone-chilling"
to say the least, both in terms of downtime and the substantial costs
that would be suffered in performing what is a relatively simple fix.
Does anyone know of suppliers that provide remote access and control
equipment that can be used to remotely clear this type of lock-up via
a dial-up telephone facility and a modem?
This issue would seem to be a very substantial consideration to the
use of Canopy, and similar, wireless systems and their ongoing
operation in remote locations.
Bill Evans
Winnipeg, Manitoba