Murata Electronics North America XDM2140 ユーザーズマニュアル
6.0 Module Pinout
Pin Number
Pin Name
Description
1
GND
Connect to the host circuit board ground.
2
NC
Leave unconnected.
3
NC
Leave unconnected.
4
NC
Leave unconnected.
5
UART_TX
Serial data output from UART.
6
UART_RX
Serial data input from UART.
7
/MT_RTS
Active low output to the host signaling the XDM2140 has a packet to
deliver.
deliver.
8
MODE
Mode B input, normally grounded.
9
NC
Leave unconnected.
10
/SP_CTS
Active low input from the host signaling it is ready to receive a packet.
11
/TIME
Active low input to trigger the XDM2140 to send a timestamp packet.
12
/MT_CTS
Active low clear to send output from XDM2140 to the host.
13
NC
Leave unconnected.
14
VBAT
Power supply input, +3.3 to +5.5 Vdc
15
GND
Connect to the host circuit board ground.
16
GND
Connect to the host circuit board ground.
17
/RESET IN
Active low XDM2140 reset input.
18
/LED
Active low status LED driver ouput.
19
NC
Leave unconnected.
20
NC
Leave unconnected.
21
NC
Leave unconnected.
22
NC
Leave unconnected.
23
NC
Leave unconnected.
24
NC
Leave unconnected.
25
NC
Leave unconnected.
26
NC
Leave unconnected.
27
NC
Leave unconnected.
28
GND
Connect to the host circuit board ground.
29
NC
Leave unconnected.
30
GND
Connect to the host circuit board ground.
RF
Connector
U.FL coaxial antenna connector.
Table 9