Huawei MU609 Application Manual page 18

HUAWEI MU609 HSPA LGA Module
Application Guide
1. The host sends AT to the module.
2. If the module returns failure information, go to step 5.
3. If the module returns success information, the module is functioning normally.
4. If the host times out (the host waits for a response for over 30 seconds) three
times when waiting for the response from the module, go to step 5. Otherwise go
to step 1.
5. The host deems that the current module does not exist or is unavailable. Close
the port, stop sending all AT commands, exit the procedure to determine
whether the module is normal, and re-search for modules.
Issue 02 (2013-09-18)
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Copyright © Huawei Technologies Co., Ltd.
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