Quectel EC21 Series

LTE Standard Module Series
EC21_Series_Hardware_Design
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Product Overview
2.1. Frequency Bands and Functions
EC21 series module is a series of LTE-FDD/LTE-TDD/WCDMA/GSM wireless communication module
with receive diversity. It provides data connectivity on LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA,
HSUPA, WCDMA, EDGE and GPRS networks. It also provides GNSS
1
and voice functionality
2
for
customers’ specific applications. EC21 series module contains 12 variants: EC21-E, EC21-A, EC21-V,
EC21-AU, EC21-EU, EC21-AUT, EC21-J, EC21-KL, EC21-AUX and EC21-EUX. Customers can choose
a dedicated type based on the region or operator. The following table shows the frequency bands of
EC21 series module.
Table 2: Supported Frequency Bands and GNSS Function of EC21 Series Module
1
GNSS function is optional.
2
EC21 series module contains Data + Voice version and Data-only version. Data + Voice version supports voice and
data functions, while Data-only version only supports data function.
3
B2 of EC21-AU and EC21-AUX module does not support Rx-diversity.
EC21 Series
2
LTE WCDMA GSM
Rx-
diversity
GNSS
1
EC21-E
FDD:
B1/B3/B5/B7/B8/B20
B1/B5/B8 900/1800 MHz √
GPS,
GLONASS,
BeiDou
(COMPASS),
Galileo,
QZSS
EC21-A FDD: B2/B4/B12 B2/B4/B5 - √
EC21-V FDD: B4/B13 - - √
EC21-AU
FDD:
B1/B2
3
/B3/B4/B5/B7/
B8/B28
TDD: B40
B1/B2/B5/
B8
850/900/1800/
1900 MHz
√
EC21-EU
FDD:
B1/B3/B7/B8/B20/
B28A
B1/B8 900/1800 MHz √