Key Features - Quectel EC21 Series Hardware Design

FDD:
EC21-AUT
B1/B3/B5/B7/B28
FDD:
EC21-J B1/B3/B8/B18/B19/
B26
FDD:
EC21-KL
B1/B3/B5/B7/B8
FDD:
B1/B2/B3/B4/B5/B7/
3
EC21-AUX
B8/B28
TDD: B40
FDD:
EC21-EUX B1/B3/B7/B8/B20/
B28A
With a compact profile of 29.0 mm × 32.0 mm × 2.4 mm, EC21 series module can meet almost all
requirements for M2M applications such as metering, tracking system, security, router, wireless POS,
mobile computing device, PDA phone, tablet PC, etc.
EC21 series module is an SMD type module which can be embedded into applications through its 144
pins, including 80 LCC pins and 64 LGA pins.
NOTE
"√" means supported.

2.2. Key Features

The following table describes the detailed features of EC21 series module.
Table 3: Key Features of EC21 Series Module
Features
Power Supply
Transmitting Power
EC21_Series_Hardware_Design
B1/B5
-
-
B1/B2/B4/
B5/B8
B1/B8
Description
 Supply voltage: 3.3–4.3 V
 Typical supply voltage: 3.8 V
 Class 4 (33 dBm ±2 dB) for GSM850
Class 4 (33 dBm ±2 dB) for EGSM900

 Class 1 (30 dBm ±2 dB) for DCS1800
 Class 1 (30 dBm ±2 dB) for PCS1900
Class E2 (27 dBm ±3 dB) for GSM850 8-PSK

LTE Standard Module Series
- √
- √
- √
850/900/1800/
√
1900 MHz
900/1800 MHz √
-
-
√
√
20 / 118