User's Manual

SARA-R4 series - System Integration Manual
UBX-16029218 - R03 System description
Page 8 of 94
Table 2 reports a summary of cellular radio access technologies characteristics and features of the modules.
Item
SARA-R4 Series
Protocol stack release
3GPP Release 13
Frequency Division Duplex (FDD)
Half-Duplex
Operating band
SARA-R404M modules:
 Band 13 (750 MHz)
SARA-R410M-01B modules:
 Band 12 (700 MHz)
 Band 5 (850 MHz)
 Band 4 (1700 MHz)
 Band 2 (1900 MHz)
Power class
Power Class 3 (23 dBm)
Data rate
LTE category M1, up to 375 kb/s DL/UL
Table 2: SARA-R4 series characteristics summary
1.2 Architecture
Figure 1 summarizes the internal architecture of SARA-R4 series modules.
Memory
V_INT (I/O)
RF
transceiver
Cellular
BaseBand
Processor
ANT
VCC (Supply)
USB
DDC (I
2
C)
SIM card detection
SIM
UART
Power-On
Reset
GPIO
Antenna detection
Switch
PA
19.2 MHz
Power
Management
Filter
Figure 1: SARA-R4 series modules simplified block diagram