User's Manual

LTE Module Series
EC25Hardware Design
EC25_Hardware_DesignConfidential / Released 15 / 90
Rx-diversity Support LTE/WCDMA Rx-diversity
GNSS Features
Gen8CLite of Qualcomm
Protocol: NMEA 0183
AT Commands
Compliant with 3GPP TS 27.007, 27.005 and Quectel enhanced AT
commands
Network Indication
Two pins including NET_MODE and NET_STATUS to indicate network
connectivity status
Antenna Interface
Including main antenna interface (ANT_MAIN), Rx-diversityantenna
interface (ANT_DIV) and GNSS antenna interface (ANT_GNSS)
Physical Characteristics
Size: 32.0±0.15×29.0±0.15×2.4±0.2mm
Weight: approx. 4.9g
Temperature Range
Operation temperature range: -35°C ~ +75°C
1)
Extended temperature range: -40°C ~ +85°C
2)
Firmware Upgrade USB interface and DFOTA*
RoHS All hardware components are fully compliant with EU RoHS directive
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, 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
the normal operating temperature levels, the module will meet 3GPP compliant again.
3. “*” means under development.
2.3. Functional Diagram
The following figure shows a block diagram of EC25 and illustrates the major functional parts.
NOTES