Product Info

LTE Standard Module Series
EC21 Mini PCIe Hardware Design
EC21_Mini_PCIe_Hardware_Design 18 / 64
1.
1)
Within operation temperature range, the module is 3GPP compliant.
2.
2)
Within extended temperature range, the module remains the ability to establish and maintain a
voice, SMS, data transmission, emergency call* (emergency call is not supported on ThreadX
module), etc. There is no unrecoverable malfunction. There are also no effects on radio spectrum
and no harm to radio network. Only one or more parameters like P
out
might reduce in their value and
exceed the specified tolerances. When the temperature returns to normal operation temperature
levels, the module will meet 3GPP specifications again.
3. “*” means under development.
WCDMA: AMR/AMR-WB
LTE: AMR/AMR-WB
Support echo cancellation and noise suppression
PCM Interface
Support 16-bit linear data format
Support long frame synchronization and short frame synchronization
Support master and slave modes, but must be the master in long frame
synchronization
USB Interface
Compliant with USB 2.0 specification (slave only); the data transfer rate
can reach up to 480Mbps
Used for AT command communication, data transmission, GNSS NMEA
output, software debugging, firmware upgrade and voice over USB
Support USB serial drivers for: 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, etc.
Antenna Connectors
Include main antenna, diversity antenna and GNSS antenna receptacle
connectors
Rx-diversity Support LTE/WCDMA Rx-diversity
GNSS Features
Gen8C Lite of Qualcomm
Protocol: NMEA 0183
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
Physical Characteristics
Size: (51.0±0.15)mm × (30.0±0.15)mm × (4.9±0.2)mm
Weight: approx. 9.8g
Temperature Range
Operation temperature range: -35°C ~ +75°C
1)
Extended temperature range: -40°C ~ +80°C
2)
Storage temperature range: -40°C ~ +90°C
Firmware Upgrade Upgrade via USB interface or DFOTA*
RoHS All hardware components are fully compliant with EU RoHS directive
NOTES