User's Manual

M2US50NBT/M2SD50NBT
Hardware Integration Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
22
Laird
Americas: [phone]
Europe: [phone]
Hong Kong: [phone] x026
Pin #
Name
Type
Voltage
Reference
Description
If Not
Used
20
BT_UART_WAKE
O
3.3V
Reserved for BT to wakeup Host.
When BT wakes up from its deep sleep
state, it sends an H pulse signal out to Host.
Normally, it is Low state.
N/C
21
Wake on WLAN
O
1.8V
Reserved for Wake-ON-Wireless
(WOW) LAN, WLAN output signal to wake
up host, active Low and already has internal
10K pull up.
Note: Not supported by current software.
N/C
22
BT_UART_TXD
O
1.8V
BT UART transmission data.
N/C
23
WLAN reset
I
1.8V
WLAN reset or power down; Active L
Already has internal 10K pull-up.
Hold this to L to power down the Wi-Fi chip.
N/C
24
Mechanical Key-E
-
-
-
-
25
Mechanical Key-E
-
-
-
-
26
Mechanical Key-E
-
-
-
-
27
Mechanical Key-E
-
-
-
-
28
Mechanical Key-E
-
-
-
-
29
Mechanical Key-E
-
-
-
-
30
Mechanical Key-E
-
-
-
-
31
Mechanical Key-E
-
-
-
-
32
BT_UART_RXD
I
1.8V
BT UART receives data.
N/C
33
GND
-
-
Ground
GND
34
BT_UART_RTS
O
1.8V
BT UART Ready to Send.
N/C
35
N/C
-
-
N/C
N/C
36
BT_UART_CTS
O
1.8V
BT UART Clear to Send.
N/C
37
N/C
-
-
N/C
NC/
38
N/C
-
-
N/C
N/C
39
GND
-
-
Ground
GND
40
N/C
-
-
N/C
N/C
41
N/C
-
-
N/C
N/C
42
N/C
-
-
N/C
N/C
43
N/C
-
-
N/C
N/C
44
LTE_COEX3
I
1.8V
Reserved for LTE coexistence
Note: Not currently supported.
N/C
45
GND
-
-
Ground
GND
46
LTE_ACTIVE
I
1.8V
Reserved for LTE coexistence
Note: Not currently supported.
N/C
47
N/C
-
-
N/C
N/C