We’re a UK based hardware supplier.
We’ve recently upgraded a number of our rugged computers in USA and Australia from Wavecom XTend 2G modems to Maestro M1003Gxx modems - the upgrades were forced upon us because of the 2G switch-off in those countries.
The Maestro modems (Sierra Wireless innards) come with a country specific model number, as below:
M1003G00 - USA (SL808TR internals);
M1003G02 - UK (SL8082T internals);
M1003G04 - Australia (SL8084TR internals);
At the time of purchase, we were advised that the modems were hardware fixed to only operate in the country they were designed for. This meant we had to buy a number of ‘US only’ modems and a number of ‘Australian only’ modems. Because of order MOQs, this has left us with a surplus of both USA & Aussie units.
However, on receiving the units here in the UK, we were able to send the AT!BAND=06 command to re-program a USA modem to work on the UK bands, likewise the Australian units. After re-programming to the UK’s 2100MHz & 900/2100MHz bands, both modems faultlessly sent & received data over O2.
So this has left me confused - what are the differences between the SL8080, SL8082 & SL8084 modules and are there any issues with re-programming say the US modems for longterm deployment here in the UK ?
Cheers for any comments / ideas.