SARA-G450 - System integration manual
UBX-18046432 - R08 Appendix Page 130 of 143
C1-Public
A.2 Pin-out comparison: SARA-G3, SARA-G4, SARA-U2, SARA-R4, SARA-N2 modules
Table 49 shows a pin-out comparison between the SARA-R4, SARA-R5, SARA-N2, SARA-N3, SARA-G3, SARA-G4, and SARA-U2 modules.
USB 3V3 supply Input
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ
ON when radio is on
TestPoint recommended
Supply output:
1.8 V typ / 2.8 V typ
ON when SARA is on
Voltage value set by VSEL
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
Supply output:
1.8 V typ / 3.0 V typ
ON when SARA is on
Voltage value set by VSEL
TestPoint recommended
Supply output:
1.8 V typ
ON when SARA is on
TestPoint recommended
UART DSR output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DSR output
V_INT level (1.8 V)
Driver strength: 2 mA
Also RTS for 2
nd
UART
UART DSR output
V_INT level (1.8 V)
Driver strength: 5 mA
Also RTS for 2
nd
UART
UART DSR output
20
V_INT level (1.8 / 2.8 V)
UART DSR output
V_INT level (1.8 V)
Driver strength: 6 mA
UART DSR output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART DSR output
V_INT level (1.8 V)
Driver strength: 1 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
Also CTS for 2
nd
UART
UART RI output
V_INT level (1.8 V)
Driver strength: 5 mA
Also CTS for 2
nd
UART
UART RI output
V_INT level (1.8 / 2.8 V)
Driver strength: 3 mA
Configurable as GPIO
UART RI output
V_INT level (1.8 V)
Driver strength: 6 mA
UART RI output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART RI output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
Also RXD for 2
nd
UART
UART DCD output
V_INT level (1.8 V)
Driver strength: 5 mA
Also RXD for 2
nd
UART
UART DCD output
20
V_INT level (1.8 / 2.8 V)
UART DCD output
V_INT level (1.8 V)
Driver strength: 6 mA
UART DCD output
V_INT level (1.8 / 3.0 V)
Driver strength: 3 mA
UART DCD output
V_INT level (1.8 V)
Driver strength: 2 mA
UART DTR input
V_INT level (1.8 V)
Internal pull-up: ~100 kΩ
Set low for URCs/Greeting
UART DTR input
V_INT level (1.8 V)
Internal pull-up: ~100 kΩ
Set low for greeting text
Also TXD for 2
nd
UART
UART DTR input
V_INT level (1.8 V)
Internal pull-up: ~56 kΩ
Set low for greeting text
Also TXD for 2
nd
UART
UART DTR input
21
V_INT level (1.8 / 2.8 V)
UART DTR input
V_INT level (1.8 V)
Internal pull-up: ~33 kΩ
UART DTR input
V_INT level (1.8 / 3.0 V)
Internal pull-up: ~166 kΩ
UART DTR input
V_INT level (1.8 V)
Internal pull-up: ~14 kΩ
Set low for greeting text
Not supported by “00” product version
Not supported by “00” product version