Product Info

LTE Standard Module Series
EC21 Hardware Design
EC21_Hardware_Design 19 / 120
1.
1)
GNSS function is optional.
2.
2)
EC21 series module contains Telematics version and Data-only version. Telematics version
supports voice and data functions, while Data-only version only supports data function.
3.
3)
B2 band on EC21-AU and EC21-AUX module does not support Rx-diversity. Additionally,
EC21-AUX is based on ThreadX OS.
4. Y = Supported. N = Not supported.
With a compact profile of 29.0mm × 32.0mm × 2.4mm, EC21 can meet almost all requirements for M2M
applications such as automotive, metering, tracking system, security, router, wireless POS, mobile
computing device, PDA phone, tablet PC, etc.
EC21 is an SMD type module which can be embedded into applications through its 144-pin pads,
including 80 LCC signal pads and 64 LGA pads.
2.2. Key Features
The following table describes the detailed features of EC21 module.
Table 2: Key Features of EC21 Module
Features Details
Power Supply
Supply voltage: 3.3V~4.3V
Typical supply voltage: 3.8V
Transmitting Power
Class 4 (33dBm±2dB) for GSM850
Class 4 (33dBm±2dB) for EGSM900
Class 1 (30dBm±2dB) for DCS1800
Class 1 (30dBm±2dB) for PCS1900
Class E2 (27dBm±3dB) for GSM850 8-PSK
Class E2 (27dBm±3dB) for EGSM900 8-PSK
Class E2 (26dBm±3dB) for DCS1800 8-PSK
Class E2 (26dBm±3dB) for PCS1900 8-PSK
EC21-KL
FDD:
B1/B3/B5/B7/B8
N N Y N
EC21-AUX
3)
FDD:
B1/B2/B3/B4/B5/B7/B8/
B28
TDD: B40
B1/B2/B4/B5/
B8
850/900/
1800/1900MHz
Y Y
NOTES