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EC20 series is a new generation of Quectel LTE module. Adopting the 3GPP Rel. 9 LTE technology, it delivers 100Mbps downlink and 50Mbps uplink data rates and is fallback compatible with Quectel UMTS/HSPA+ UC20 module in the compact and unified form factor, providing a flexible and scalable platform for migrating from UMTS/HSPA+ to LTE. EC20 contains four variants: EC20-A, EC20-C, EC20-CE and EC20-E. This makes it backward-compatible with existing EDGE and GSM/GPRS networks, ensuring that it can be connected even in remote areas devoid of 4G or 3G coverage.
B1/ B3/ B8
B38/ B39/ B40/ B41
CCC/ SRRC/ NAL
Q.1. What's your advantages?
Q.2.What's your warranty?
-It’s one year for the warranty period from the goods deliver to customer.
Q.3.What are the payment terms you can accept?
-We accept T/T, Paypal, Payoneer.
Packing and Delivery:
Q.4:Is it possible to use standard USB to supply power for the module?
The output current of standard USB interface is max.500mA, which does not meet the peak current demand of GPRS module. If USB interface is required to supply power for the module, you can operate like below:
1) Use AT+QGPCLASS to set the GPRS level to 8. This command will take effect after next restart of the module. There is only one uplink slot when the GPRS level is 8.
2) Connect two 2200uF capacitors with low ESR value to VBAT pin and keep them close to the module.
3) It is recommended that the VBAT voltage should be adjusted between 4.2V and 4.5V which can prevent the module from working abnormally due to the voltage drop of VBAT.
4) Test the module under the weak signal environment (such as CSQ value is less than 14). If the module works properly, it indicates that USB interface can supply power for the module.