Ublox SARA-R4 Series

SARA-R4/N4 series-AT Commands Manual
UBX-17003787 - R09

15GPIO
Page 165 of 307
15.1.3.3Registered home network 3G
• Cyclic Output / High for 50 ms, Output / Low for 50 ms, Output / High for 50 ms, Output / Low for 2 s
Time
Voltage
V
H
V
L
2 s
50
ms
Figure 3: GPIO pin progress for registered home network 3G
15.1.3.4Registered home network Cat NB1
• Cyclic Output / High for 100 ms, Output / Low for 30 s
Time
Voltage
V
H
V
L
30 s
100
ms
Figure 4: GPIO pin progress for registered home network Cat NB1
15.1.3.5Registered roaming 2G
• Cyclic Output / High for 100 ms, Output / Low for 100 ms, Output / High for 100 ms, Output / Low for 2 s
Time
Voltage
V
H
V
L
2 s
100
ms
Figure 5: GPIO pin progress for registered roaming 2G
15.1.3.6Registered roaming 3G
• Cyclic Output / High for 50 ms, Output / Low for 50 ms, Output / High for 50 ms, Output / Low for 100 ms