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HUAWEI MG301 B2B Module
HardwareGuide
Function
Signal Name I/O Waveform and
GND
External
VIO
power voltage
interface
Interface for
VCOIN
standby
power input of
the RTC
Power pin
TERM_ON
Reset pin
RESET
Signal of the
LED_STATU
network
S
status LED
SIM card
SIM_RST
interface
(Class B)
SIM_DATA
Level
-
P
V
=2.70 V
omin
V
=2.80 V
otype
V
=2.95 V
omax
I
=10.00 mA
omax
P
V
=3.00 V
omax
V
=2.00 V
Imin
V
=3.00 V
Itype
V
=3.15 V
Imax
I
=5.00 μA at
Itype
VBAT=0 V
I
V
=0.40 V
ILmax
The signal can be
detected when
low level keeps
effective for one
second or more.
I
V
=0.40 V
ILmax
The signal can be
detected when
low level keeps
effective for 10
milliseconds or
more.
O
V
=2.70 V
oHmin
O
V
=2.32 V
oHmin
V
=0.58 V
oLmax
I/O
V
=2.03 V
oHmin
V
=0.40 V
oLmax
V
=0.58 V
ILmax
V
=2.03 V
IHmin
Huawei Proprietary and Confidential Copyright ©
Huawei Technologies Co., Ltd
Issue 06 (2013-06-13)
Electrical and Reliability Features
Remarks
Pins 41, 43, 45, 47, and 49 are power GND
pins.
Pin 40 is a pin for supplying external devices
with power from the MG301 B2B module.
Ensure that the external peaks and burst do
not damage the VIO interface.
If the MG301 module is in Sleep mode, the
VIO pin is in the enabled low consumption
state (< 500 uA). If the MG301 B2B module
is in Power Down mode, the VIO pin is in
the disabled state.
This pin can be left open if it is not used.
Pin 35 is a pin for standby power input of the
RTC. When the VBAT is not ready for power
supply, the RTC can be supplied with power
through an external coin battery or capacitor.
This pin can be left openif it is not used.
Pin 20 is a pin for powering on the module.
Low level is effective.
Pin 22 is a pin for restarting the module. Low
level is effective.
This pin can be left open if it is not used.
Pin 25 is a pin for controlling the network
status LED.
This pin can be left open if it is not used.
Reset signal of the SIM card
Data signal of the SIM card
38
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