LTE-A Module Series
UMTS<E EVB R2.0 User Guide
UMTS<E_EVB_R2.0_User_Guide 30 / 44
1 2 3 4 5
6 7 8 9
Figure 26: Pin Assignment of UART Connector J402
Table 10: Pin Definition of J402
4.8. Switches and Buttons
The UMTS<E EVB R2.0 includes three switches (S201, S901 and S902) and three buttons (S301,
S302 and S303), as shown in the following figures.
Pin No.
Pin Name
I/O
Description
1, 4, 6, 7, 8, 9
NC
Not connected
2
RXD
DI
Receive Data
3
TXD
DO
Transmit data
5
GND
Ground