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HUAWEI MG301 B2B Module
HardwareGuide
Pin
Pin Name
No.
Normal
17
NC
18
GND
19
NC
20
TERM_ON
21
NC
22
RESET
23
NC
24
UART1_DCD
25
LED_STATUS
26
NC
27
NC
28
UART1_CTS
29
UART1_RD
30
NC
31
NC
32
UART1_DTR
33
UART1_TD
34
UART1_RTS
35
VCOIN
36
UART1_DSR
37
NC
38
UART1_RING
I/O
Description
MUX
-
-
Not connected, please
keep this pin open
-
-
Ground
-
-
Not connected, please
keep this pin open
-
I
Power on/power off
control
-
-
Not connected, please
keep this pin open
-
I
Hardware reset
-
-
Not connected, please
keep this pin open
-
O
DCE data carrier detect
-
O
Network status
indication
-
-
Not connected, please
keep this pin open
-
-
Not connected, please
keep this pin open
-
O
DCE clear to send
-
O
DCE transmit data
-
-
Not connected, please
keep this pin open
-
-
Not connected, please
keep this pin open
-
I
DCE data terminal
ready
-
I
DCE receive data
-
I
DCE request to send
-
P
Standby power input of
the RTC
-
O
DCE data set ready
-
-
Not connected, please
keep this pin open
-
O
DCE ring indicator
Description of the Application Interfaces
DC Characteristics (V)
Min.
-
-
-
-
-
–0.40
-
–0.40
–0.40
-
-
–0.40
–0.40
-
-
–0.40
–0.40
–0.40
2.00
–0.40
-
–0.40
Huawei Proprietary and Confidential Copyright ©
Huawei Technologies Co., Ltd
Issue 06 (2013-06-13)
Tpy.
Max
-
-
-
-
-
-
internal
-
pulled up
-
-
2.80
3.20
-
-
2.80
3.20
2.80
3.20
-
-
-
-
2.85
3.25
2.85
3.25
-
-
-
-
2.80
3.20
2.80
3.20
2.85
3.25
3.00
3.15
2.80
3.20
-
-
2.80
3.20
15
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