
Robustel GoRugged M1000 XP User Guide
RT_UG_M1000 XP_v.1.0.0 19.11.2013 14 / 57
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Wireless module communication error, no AT command response.
Average signal (GSM/GPRS/UMTS connections)
System is configuring via USB, and DB9 serial port is disabled at the same time
Cannot register to network.
Exceptional signal (GSM/GPRS/UMTS connections)
SIM card detection is fail or PIN error.
2.3 PIN assignment
2.4 USB interface
USB interface can be used for configuration, firmware upgrade and power supply. When USB interface of M1000 XP
is used for configuration as well as power supply, current/voltage output of USB interface which connects to M1000
XP’s USB interface shall at least reach to 1A/5V.
Note: Normally, current/voltage output of laptop’s USB 2.0 interface is only 0.5A/5V. So when you use USB interface
for configuration, you should use power input interface for power supply (please check section 2.9
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