Series Model:

EC20 R2.1 is a LTE-FDD/LTE-TDD/WCDMA/TD-SCDMA/EVDO/CDMA/GSM wireless communication module with diversity receiving function, supporting LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA, TD-SCDMA, EVDO, CDMA, EDGE and GPRS network data connection can provide GNSS and voice functions for customers’ special applications.

Main performance

parameter instruction
供电 ● VBAT supply voltage range: 3.3-4.3V

● Typical supply voltage: 3.8V

Transmit power ● Class 4 (33dBm±2dB) for EGSM900
● Class 1 (30dBm±2dB) for DCS1800
● Class E2 (27dBm±3dB) for EGSM900 8-PSK
● Class E2 (26dBm±3dB) for DCS1800 8-PSK
● Class 3 (24dBm+2/-1dB) for EVDO/CDMA BC0
● Class 3 (24dBm+1/-3dB) for WCDMA bands
● Class 2 (24dBm+1/-3dB) for TD-SCDMA bands
● Class 3 (23dBm±2dB) for LTE-FDD bands
● Class 3 (23dBm±2dB) for LTE-TDD bands
LTE characteristic ● Maximum support for 3GPP R8 non-CA Cat 4 FDD and TDD
● Support 1.4/3/5/10/15/20MHz RF bandwidth
● Downlink support MIMO
● LTE-FDD: The maximum downlink rate is 150Mbps, and the maximum uplink rate is 50Mbps
● LTE-TDD: The maximum downlink rate is 130Mbps, and the maximum uplink rate is 30Mbps
UMTS characteristic ● Support 3GPP R8 DC-HSDPA, HSPA+, HSDPA, HSUPA and WCDMA
● Support QPSK, 16-QAM and 64-QAM modulation
● DC-HSDPA: Maximum downlink rate 42Mbps
● HSUPA: Maximum uplink rate 5.76Mbps
● WCDMA: The maximum downlink rate is 384Kbps, the maximum uplink rate is 384Kbps
TD-SCDMA characteristic ● Support CCSA Release 3 TD-SCDMA
● Maximum downlink rate 4.2Mbps, maximum uplink rate 2.2Mbps
CDMA2000 characteristic ● Support 3GPP2 CDMA2000 1X Advanced and 1xEV-DO Rev.A
●EVDO: The maximum downlink rate is 3.1Mbps, the maximum uplink rate is 1.8Mbps
● 1X Advanced: The maximum downlink rate is 307.2Kbps, the maximum uplink rate is 307.2Kbps
GSM characteristic GPRS:
● Support GPRS multi-slot level 33 (default is 33)
● Coding format: CS-1/CS-2/CS-3/CS-4
● The maximum downlink rate is 107Kbps, the maximum uplink rate is 85.6Kbps
● Support EDGE multi-slot level 33 (default is 33)
● Support GMSK and 8-PSK modulation and coding methods
● Downlink coding format: CS 1-4 and MCS 1-9
● Uplink coding format: CS 1-4 and MCS 1-9  The maximum downlink rate is 296Kbps, the maximum uplink rate is 236.8Kbps
Network protocol characteristics ● Support TCP/UDP/PPP/FTP/HTTP/NTP/PING/QMI/NITZ/CMUX/HTTPS/SMTP/MMS/FTPS/SMTPS/SSL/FILE protocol
● Support PAP (Password Authentication Protocol) and CHAP (ChallengeHandshake Authentication Protocol)
short message(SMS) ● Text and PDU mode
● Point-to-point SMS sending and receiving
● SMS cell broadcast
● SMS storage: stored in the module by default
(U)SIM interface ● Support USIM/SIM card: 1.8V and 3.0V
Audio characteristics ● Support 1 digital audio interface: PCM interface
● Support echo cancellation and noise suppression
PCM 接口 ● For audio use, an external Codec chip is required
● Support 16-bit linear encoding format
● Support long frame and short frame mode
● Supports master mode and slave mode, but can only be used as master mode in long frames
USB interface ● Compatible with USB 2.0 (only support slave mode), data transfer rate up to 480Mbps
● Used for AT command transmission, data transmission, GNSS NMEA output, software debugging, software upgrade and USB voice
● USB virtual serial port driver: support Windows 7/8/8.1/10, Linux 2.6/3.x/4.1~4.15, Android 4.x/5.x/6.x/7.x/8.x/9.x Wait for the USB driver under the operating system
Serial port Main serial port:
●Used for AT command transmission and data transmission
●The maximum baud rate is 921600bps, and the default is 115200bps
● Support RTS and CTS hardware flow control
Debug serial port:
● For Linux control, log output
● The baud rate is 115200bps
SD Card interface ● Compliant with SD 3.0 protocol
SGMII interface ● Support 10M/100M/1000M Ethernet working mode
● Support maximum downlink rate of 150Mbps, maximum uplink rate of 50MBps (under 4G LTE network)
Wireless connection interface ● Support low power SDIO 3.0 WLAN and UART&PCM Bluetooth interface
Diversity receiving antenna interface ● Support LTE/WCDMA diversity reception
GNSS characteristic ● Qualcomm Gen8C Lite
● Protocol: NMEA 0183
AT command ● Commands defined in 3GPP TS 27.007 and 3GPP TS 27.005, and Quectel enhanced AT commands
Network instructions ● NET_MODE and NET_STATUS two pins indicate the network status
Antenna interface ● Including main antenna interface (ANT_MAIN), diversity receiving antenna interface (ANT_DIV) and GNSS antenna interface (ANT_GNSS)
Physical characteristics ● Dimensions: (29.0±0.15)mm × (32.0±0.15)mm × (2.4±0.2)mm
● weight:5.3g
temperature range ● Normal working temperature: -35°C ~ +75°C1
● Extended operating temperature: -40°C ~ +85°C2)
● Storage temperature: -40°C ~ +90°C
software upgrade ● Can be upgraded via USB interface or DFOTA
RoHS ● All devices are fully compliant with EU RoHS standards
bug bug

It is recommended to purchase in accordance with the MPQ quantity.

Evaluation board:ZLG902X Demo Kit

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