User's Manual

LE920 Hardware User Guide
1vv0301026 Rev.8 2015-01-03
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Reserved. Page 26 of 88
PAD
Signal
I/O
Function
Type
COMMENT
M3
Reserved
-
Reserved
S3
Reserved
-
Reserved
S17
Reserved
-
Reserved
U3
Reserved
-
Reserved
W3
Reserved
-
Reserved
AL2
Reserved
-
Reserved
AM1
Reserved
-
Reserved
AN2
Reserved
-
Reserved
AN4
Reserved
-
Reserved
AN8
Reserved
-
Reserved
AN14
Reserved
-
Reserved
AS3
Reserved
-
Reserved
AT2
Reserved
-
Reserved
B19
Reserved
-
Reserved
AU13
Reserved
-
Reserved
E2
Reserved
-
Reserved
D1
Reserved
-
Reserved
C2
Reserved
-
Reserved
B1
Reserved
-
Reserved
NOTE:
When the UART signals are used as the communication port between the Host and the
Modem:
- DTR pin must be connected in order to enter LE920’s power saving mode.
- RI pin must be connected in order to wake the host when a call is coming during sleep
mode of host.
- RTS must be connected to GND (on the module side) if flow control is not used
In case UART port isn’t used, all UART signals may be left disconnected
NOTE:
E8 port – eSIM Reset signal is available for LE920-NA AUTO S model only. For other
models, E8 is internally disconnected.
NOTE:
Unless otherwise specified, RESERVED pins must be left unconnected (Floating).