WH-LTE-7S1-E Hardware Manual
Technical Support:
Jinan USR IOT Technology Limited
www.pusr.com
5
2.3. Pins Definition
Pin
Name
Direction
Description
1
LINKA
O
Output high level when socket A connection is
established.
2
LINKB
O
Output high level when socket B connection is
established.
3
USB_DM
I/O
USB-
4
USB_DP
I/O
USB+
5
V_PAD
P
3.0V IO Power domain.
6
UTXD1
O
UART data out, data output from module to user
device (3.0V)
7
URXD1
I
UART data in, data input from user device to module
(3.0V)
8
VBUS
P
USB Power
9
WORK
O
Working status indicator, flashes. The high and low
level change every second.
10
POWER KEY
I
Power on and off, low level off.
11
GND
P
Power GND.
12
GND
P
Power GND.
13
DCIN
P
5-16V power.
14
DCIN
P
5-16V power.